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      <h1 class="title">src/db_connector/db_mysql</h1>
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    <ul class="simple simple-toc" id="toc-list">
  <li><a class="reference" id="parameter-substitution_toc" href="#parameter-substitution">Parameter substitution</a></li>
<li><a class="reference" id="examples_toc" href="#examples">Examples</a></li>
<ul class="simple"><li><a class="reference" id="examples-opening-a-connection-to-a-database_toc" href="#examples-opening-a-connection-to-a-database">Opening a connection to a database</a></li>
<li><a class="reference" id="examples-creating-a-table_toc" href="#examples-creating-a-table">Creating a table</a></li>
<li><a class="reference" id="examples-inserting-data_toc" href="#examples-inserting-data">Inserting data</a></li>
<li><a class="reference" id="examples-larger-example_toc" href="#examples-larger-example">Larger example</a></li>
</ul><li>
  <a class="reference reference-toplevel" href="#6" id="56">Imports</a>
</li>
<li>
  <details open>
    <summary><a class="reference reference-toplevel" href="#7" id="57">Types</a></summary>
    <ul class="simple simple-toc-section">
      <li><a class="reference" href="#DbConn" title="DbConn = distinct PMySQL">DbConn</a></li>
<li><a class="reference" href="#InstantRow" title="InstantRow = object">InstantRow</a></li>
<li><a class="reference" href="#Row" title="Row = seq[string]">Row</a></li>

    </ul>
  </details>
</li>
<li>
  <details open>
    <summary><a class="reference reference-toplevel" href="#12" id="62">Procs</a></summary>
    <ul class="simple simple-toc-section">
      <ul class="simple nested-toc-section">[]
  <li><a class="reference" href="#%5B%5D%2CInstantRow%2Cint" title="`[]`(row: InstantRow; col: int): string">`[]`(row: InstantRow; col: int): string</a></li>

</ul>
<ul class="simple nested-toc-section">close
  <li><a class="reference" href="#close%2CDbConn" title="close(db: DbConn)">close(db: DbConn)</a></li>

</ul>
<ul class="simple nested-toc-section">dbError
  <li><a class="reference" href="#dbError%2CDbConn" title="dbError(db: DbConn)">dbError(db: DbConn)</a></li>

</ul>
<ul class="simple nested-toc-section">dbQuote
  <li><a class="reference" href="#dbQuote%2Cstring" title="dbQuote(s: string): string">dbQuote(s: string): string</a></li>

</ul>
<ul class="simple nested-toc-section">exec
  <li><a class="reference" href="#exec%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="exec(db: DbConn; query: SqlQuery; args: varargs[string, `$`])">exec(db: DbConn; query: SqlQuery; args: varargs[string, `$`])</a></li>

</ul>
<ul class="simple nested-toc-section">execAffectedRows
  <li><a class="reference" href="#execAffectedRows%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="execAffectedRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): int64">execAffectedRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): int64</a></li>

</ul>
<ul class="simple nested-toc-section">getAllRows
  <li><a class="reference" href="#getAllRows%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="getAllRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): seq[Row]">getAllRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): seq[Row]</a></li>

</ul>
<ul class="simple nested-toc-section">getRow
  <li><a class="reference" href="#getRow%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="getRow(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): Row">getRow(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): Row</a></li>

</ul>
<ul class="simple nested-toc-section">getValue
  <li><a class="reference" href="#getValue%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="getValue(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): string">getValue(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): string</a></li>

</ul>
<ul class="simple nested-toc-section">insert
  <li><a class="reference" href="#insert%2CDbConn%2CSqlQuery%2Cstring%2Cvarargs%5Bstring%2C%5D" title="insert(db: DbConn; query: SqlQuery; pkName: string; args: varargs[string, `$`]): int64">insert(db: DbConn; query: SqlQuery; pkName: string; args: varargs[string, `$`]): int64</a></li>

</ul>
<ul class="simple nested-toc-section">insertId
  <li><a class="reference" href="#insertId%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="insertId(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): int64">insertId(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): int64</a></li>

</ul>
<ul class="simple nested-toc-section">len
  <li><a class="reference" href="#len%2CInstantRow" title="len(row: InstantRow): int">len(row: InstantRow): int</a></li>

</ul>
<ul class="simple nested-toc-section">open
  <li><a class="reference" href="#open%2Cstring%2Cstring%2Cstring%2Cstring" title="open(connection, user, password, database: string): DbConn">open(connection, user, password, database: string): DbConn</a></li>

</ul>
<ul class="simple nested-toc-section">setEncoding
  <li><a class="reference" href="#setEncoding%2CDbConn%2Cstring" title="setEncoding(connection: DbConn; encoding: string): bool">setEncoding(connection: DbConn; encoding: string): bool</a></li>

</ul>
<ul class="simple nested-toc-section">tryExec
  <li><a class="reference" href="#tryExec%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="tryExec(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): bool">tryExec(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): bool</a></li>

</ul>
<ul class="simple nested-toc-section">tryInsert
  <li><a class="reference" href="#tryInsert%2CDbConn%2CSqlQuery%2Cstring%2Cvarargs%5Bstring%2C%5D" title="tryInsert(db: DbConn; query: SqlQuery; pkName: string;
          args: varargs[string, `$`]): int64">tryInsert(db: DbConn; query: SqlQuery; pkName: string;
          args: varargs[string, `$`]): int64</a></li>

</ul>
<ul class="simple nested-toc-section">tryInsertId
  <li><a class="reference" href="#tryInsertId%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="tryInsertId(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): int64">tryInsertId(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): int64</a></li>

</ul>
<ul class="simple nested-toc-section">unsafeColumnAt
  <li><a class="reference" href="#unsafeColumnAt%2CInstantRow%2Cint" title="unsafeColumnAt(row: InstantRow; index: int): cstring">unsafeColumnAt(row: InstantRow; index: int): cstring</a></li>

</ul>

    </ul>
  </details>
</li>
<li>
  <details open>
    <summary><a class="reference reference-toplevel" href="#15" id="65">Iterators</a></summary>
    <ul class="simple simple-toc-section">
      <ul class="simple nested-toc-section">fastRows
  <li><a class="reference" href="#fastRows.i%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="fastRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): Row">fastRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): Row</a></li>

</ul>
<ul class="simple nested-toc-section">instantRows
  <li><a class="reference" href="#instantRows.i%2CDbConn%2CDbColumns%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="instantRows(db: DbConn; columns: var DbColumns; query: SqlQuery;
            args: varargs[string, `$`]): InstantRow">instantRows(db: DbConn; columns: var DbColumns; query: SqlQuery;
            args: varargs[string, `$`]): InstantRow</a></li>
<li><a class="reference" href="#instantRows.i%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="instantRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): InstantRow">instantRows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): InstantRow</a></li>

</ul>
<ul class="simple nested-toc-section">rows
  <li><a class="reference" href="#rows.i%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D" title="rows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): Row">rows(db: DbConn; query: SqlQuery; args: varargs[string, `$`]): Row</a></li>

</ul>

    </ul>
  </details>
</li>

</ul>

  </div>
  <div class="nine columns" id="content">
    
    <div id="tocRoot"></div>
    
    <p class="module-desc"><div class="admonition admonition-info"><span class="admonition-info-text"><b>Note:</b></span>
In order to use this module, run <tt class="docutils literal"><span class="pre"><span class="Identifier">nimble</span> <span class="Identifier">install</span> <span class="Identifier">db_connector</span></span></tt>.</div>
<p>A higher level <span id="mysql_1">mySQL</span> database wrapper. The same interface is implemented for other databases too.</p>
<p>See also: <a class="reference external" href="db_odbc.html">db_odbc</a>, <a class="reference external" href="db_sqlite.html">db_sqlite</a>, <a class="reference external" href="db_postgres.html">db_postgres</a>.</p>

<h1><a class="toc-backref" id="parameter-substitution" href="#parameter-substitution">Parameter substitution</a></h1><p>All <tt class="docutils literal"><span class="pre"><span class="Identifier">db_</span><span class="Operator">*</span></span></tt> modules support the same form of parameter substitution. That is, using the <tt class="docutils literal"><span class="pre"><span class="Operator">?</span></span></tt> (question mark) to signify the place where a value should be placed. For example:</p>
<p><pre class="listing"><span class="RawData">sql&quot;INSERT INTO myTable (colA, colB, colC) VALUES (?, ?, ?)&quot;</span></pre></p>

<h1><a class="toc-backref" id="examples" href="#examples">Examples</a></h1>
<h2><a class="toc-backref" id="examples-opening-a-connection-to-a-database" href="#examples-opening-a-connection-to-a-database">Opening a connection to a database</a></h2><p><pre class="listing"><span class="Keyword">import</span> <span class="Identifier">db_connector</span><span class="Operator">/</span><span class="Identifier">db_mysql</span>
<span class="Keyword">let</span> <span class="Identifier">db</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;localhost&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;user&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;password&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;dbname&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">close</span><span class="Punctuation">(</span><span class="Punctuation">)</span></pre></p>

<h2><a class="toc-backref" id="examples-creating-a-table" href="#examples-creating-a-table">Creating a table</a></h2><p><pre class="listing"><span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="RawData">sql&quot;DROP TABLE IF EXISTS myTable&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="Identifier">sql</span><span class="Punctuation">(</span><span class="LongStringLit">&quot;&quot;&quot;CREATE TABLE myTable (
                 id integer,
                 name varchar(50) not null)&quot;&quot;&quot;</span><span class="Punctuation">)</span><span class="Punctuation">)</span></pre></p>

<h2><a class="toc-backref" id="examples-inserting-data" href="#examples-inserting-data">Inserting data</a></h2><p><pre class="listing"><span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="RawData">sql&quot;INSERT INTO myTable (id, name) VALUES (0, ?)&quot;</span><span class="Punctuation">,</span>
        <span class="StringLit">&quot;Dominik&quot;</span><span class="Punctuation">)</span></pre></p>

<h2><a class="toc-backref" id="examples-larger-example" href="#examples-larger-example">Larger example</a></h2><p><pre class="listing"><span class="Keyword">import</span> <span class="Identifier">db_connector</span><span class="Operator">/</span><span class="Identifier">db_mysql</span>
<span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">math</span>

<span class="Keyword">let</span> <span class="Identifier">theDb</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;localhost&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;nim&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;nim&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;test&quot;</span><span class="Punctuation">)</span>

<span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="RawData">sql&quot;Drop table if exists myTestTbl&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="Identifier">sql</span><span class="Punctuation">(</span><span class="StringLit">&quot;create table myTestTbl (&quot;</span> <span class="Operator">&amp;</span>
    <span class="StringLit">&quot; Id    INT(11)     NOT NULL AUTO_INCREMENT PRIMARY KEY, &quot;</span> <span class="Operator">&amp;</span>
    <span class="StringLit">&quot; Name  VARCHAR(50) NOT NULL, &quot;</span> <span class="Operator">&amp;</span>
    <span class="StringLit">&quot; i     INT(11), &quot;</span> <span class="Operator">&amp;</span>
    <span class="StringLit">&quot; f     DECIMAL(18,10))&quot;</span><span class="Punctuation">)</span><span class="Punctuation">)</span>

<span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="RawData">sql&quot;START TRANSACTION&quot;</span><span class="Punctuation">)</span>
<span class="Keyword">for</span> <span class="Identifier">i</span> <span class="Keyword">in</span> <span class="FloatNumber">1.</span><span class="Operator">.</span><span class="DecNumber">1000</span><span class="Punctuation">:</span>
  <span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="RawData">sql&quot;INSERT INTO myTestTbl (name,i,f) VALUES (?,?,?)&quot;</span><span class="Punctuation">,</span>
        <span class="StringLit">&quot;Item#&quot;</span> <span class="Operator">&amp;</span> <span class="Operator">$</span><span class="Identifier">i</span><span class="Punctuation">,</span> <span class="Identifier">i</span><span class="Punctuation">,</span> <span class="Identifier">sqrt</span><span class="Punctuation">(</span><span class="Identifier">i</span><span class="Operator">.</span><span class="Identifier">float</span><span class="Punctuation">)</span><span class="Punctuation">)</span>
<span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">exec</span><span class="Punctuation">(</span><span class="RawData">sql&quot;COMMIT&quot;</span><span class="Punctuation">)</span>

<span class="Keyword">for</span> <span class="Identifier">x</span> <span class="Keyword">in</span> <span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">fastRows</span><span class="Punctuation">(</span><span class="RawData">sql&quot;select * from myTestTbl&quot;</span><span class="Punctuation">)</span><span class="Punctuation">:</span>
  <span class="Identifier">echo</span> <span class="Identifier">x</span>

<span class="Keyword">let</span> <span class="Identifier">id</span> <span class="Operator">=</span> <span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">tryInsertId</span><span class="Punctuation">(</span><span class="RawData">sql&quot;INSERT INTO myTestTbl (name,i,f) VALUES (?,?,?)&quot;</span><span class="Punctuation">,</span>
        <span class="StringLit">&quot;Item#1001&quot;</span><span class="Punctuation">,</span> <span class="DecNumber">1001</span><span class="Punctuation">,</span> <span class="Identifier">sqrt</span><span class="Punctuation">(</span><span class="FloatNumber">1001.0</span><span class="Punctuation">)</span><span class="Punctuation">)</span>
<span class="Identifier">echo</span> <span class="StringLit">&quot;Inserted item: &quot;</span><span class="Punctuation">,</span> <span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">getValue</span><span class="Punctuation">(</span><span class="RawData">sql&quot;SELECT name FROM myTestTbl WHERE id=?&quot;</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">)</span>

<span class="Identifier">theDb</span><span class="Operator">.</span><span class="Identifier">close</span><span class="Punctuation">(</span><span class="Punctuation">)</span></pre></p>
</p>
    <div class="section" id="6">
  <h1><a class="toc-backref" href="#6">Imports</a></h1>
  <dl class="item">
    <a class="reference external" href="mysql.html">mysql</a>, <a class="reference external" href="db_common.html">db_common</a>, <a class="reference external" href="dbutils.html">dbutils</a>
  </dl>
</div>
<div class="section" id="7">
  <h1><a class="toc-backref" href="#7">Types</a></h1>
  <dl class="item">
    <div id="DbConn">
  <dt><pre><a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a> <span class="Other">=</span> <span class="Keyword">distinct</span> <a href="mysql.html#PMySQL"><span class="Identifier">PMySQL</span></a></pre></dt>
  <dd>
    
    encapsulates a database connection
    
  </dd>
</div>
<div id="InstantRow">
  <dt><pre><a href="db_mysql.html#InstantRow"><span class="Identifier">InstantRow</span></a> <span class="Other">=</span> <span class="Keyword">object</span></pre></dt>
  <dd>
    
    a handle that can be used to get a row's column text on demand
    
  </dd>
</div>
<div id="Row">
  <dt><pre><a href="db_mysql.html#Row"><span class="Identifier">Row</span></a> <span class="Other">=</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span></pre></dt>
  <dd>
    
    a row of a dataset. NULL database values will be converted to nil.
    
  </dd>
</div>

  </dl>
</div>
<div class="section" id="12">
  <h1><a class="toc-backref" href="#12">Procs</a></h1>
  <dl class="item">
    <div id="[]-procs-all">
  <div id="[],InstantRow,int">
  <dt><pre><span class="Keyword">proc</span> <a href="#%5B%5D%2CInstantRow%2Cint"><span class="Identifier">`[]`</span></a><span class="Other">(</span><span class="Identifier">row</span><span class="Other">:</span> <a href="db_mysql.html#InstantRow"><span class="Identifier">InstantRow</span></a><span class="Other">;</span> <span class="Identifier">col</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Returns text for given column of the row.
    
  </dd>
</div>

</div>
<div id="close-procs-all">
  <div id="close,DbConn">
  <dt><pre><span class="Keyword">proc</span> <a href="#close%2CDbConn"><span class="Identifier">close</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#DbEffect"><span class="Identifier">DbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    closes the database connection.
    
  </dd>
</div>

</div>
<div id="dbError-procs-all">
  <div id="dbError,DbConn">
  <dt><pre><span class="Keyword">proc</span> <a href="#dbError%2CDbConn"><span class="Identifier">dbError</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">)</span> {.<span class="Identifier">noreturn</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    raises a DbError exception.
    
  </dd>
</div>

</div>
<div id="dbQuote-procs-all">
  <div id="dbQuote,string">
  <dt><pre><span class="Keyword">proc</span> <a href="#dbQuote%2Cstring"><span class="Identifier">dbQuote</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    DB quotes the string. Note that this doesn't escape <tt class="docutils literal"><span class="pre"><span class="Operator">%</span></span></tt> and <tt class="docutils literal"><span class="pre"><span class="Identifier">_</span></span></tt>.
    
  </dd>
</div>

</div>
<div id="exec-procs-all">
  <div id="exec,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#exec%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">exec</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">,</span> <a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    executes the query and raises EDB if not successful.
    
  </dd>
</div>

</div>
<div id="execAffectedRows-procs-all">
  <div id="execAffectedRows,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#execAffectedRows%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">execAffectedRows</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int64</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">,</span> <a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    runs the query (typically &quot;UPDATE&quot;) and returns the number of affected rows
    
  </dd>
</div>

</div>
<div id="getAllRows-procs-all">
  <div id="getAllRows,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#getAllRows%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">getAllRows</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span>
    <a href="db_mysql.html#Row"><span class="Identifier">Row</span></a><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    executes the query and returns the whole result dataset.
    
  </dd>
</div>

</div>
<div id="getRow-procs-all">
  <div id="getRow,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#getRow%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">getRow</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="db_mysql.html#Row"><span class="Identifier">Row</span></a> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Retrieves a single row. If the query doesn't return any rows, this proc will return a Row with empty strings for each column.
    
  </dd>
</div>

</div>
<div id="getValue-procs-all">
  <div id="getValue,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#getValue%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">getValue</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    executes the query and returns the first column of the first row of the result dataset. Returns &quot;&quot; if the dataset contains no rows or the database value is NULL.
    
  </dd>
</div>

</div>
<div id="insert-procs-all">
  <div id="insert,DbConn,SqlQuery,string,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#insert%2CDbConn%2CSqlQuery%2Cstring%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">insert</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">pkName</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
            <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int64</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    same as insertId
    
  </dd>
</div>

</div>
<div id="insertId-procs-all">
  <div id="insertId,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#insertId%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">insertId</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int64</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    executes the query (typically &quot;INSERT&quot;) and returns the generated ID for the row.
    
  </dd>
</div>

</div>
<div id="len-procs-all">
  <div id="len,InstantRow">
  <dt><pre><span class="Keyword">proc</span> <a href="#len%2CInstantRow"><span class="Identifier">len</span></a><span class="Other">(</span><span class="Identifier">row</span><span class="Other">:</span> <a href="db_mysql.html#InstantRow"><span class="Identifier">InstantRow</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Returns number of columns in the row.
    
  </dd>
</div>

</div>
<div id="open-procs-all">
  <div id="open,string,string,string,string">
  <dt><pre><span class="Keyword">proc</span> <a href="#open%2Cstring%2Cstring%2Cstring%2Cstring"><span class="Identifier">open</span></a><span class="Other">(</span><span class="Identifier">connection</span><span class="Other">,</span> <span class="Identifier">user</span><span class="Other">,</span> <span class="Identifier">password</span><span class="Other">,</span> <span class="Identifier">database</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#DbEffect"><span class="Identifier">DbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">,</span> <span class="Identifier">ValueError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    opens a database connection. Raises <tt class="docutils literal"><span class="pre"><span class="Identifier">EDb</span></span></tt> if the connection could not be established.
    
  </dd>
</div>

</div>
<div id="setEncoding-procs-all">
  <div id="setEncoding,DbConn,string">
  <dt><pre><span class="Keyword">proc</span> <a href="#setEncoding%2CDbConn%2Cstring"><span class="Identifier">setEncoding</span></a><span class="Other">(</span><span class="Identifier">connection</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">encoding</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#DbEffect"><span class="Identifier">DbEffect</span></a><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    sets the encoding of a database connection, returns true for success, false for failure.
    
  </dd>
</div>

</div>
<div id="tryExec-procs-all">
  <div id="tryExec,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#tryExec%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">tryExec</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">,</span> <a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    tries to execute the query and returns true if successful, false otherwise.
    
  </dd>
</div>

</div>
<div id="tryInsert-procs-all">
  <div id="tryInsert,DbConn,SqlQuery,string,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#tryInsert%2CDbConn%2CSqlQuery%2Cstring%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">tryInsert</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">pkName</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
               <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int64</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#DbError"><span class="Identifier">DbError</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    same as tryInsertID
    
  </dd>
</div>

</div>
<div id="tryInsertId-procs-all">
  <div id="tryInsertId,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">proc</span> <a href="#tryInsertId%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">tryInsertId</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int64</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#WriteDbEffect"><span class="Identifier">WriteDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#DbError"><span class="Identifier">DbError</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    executes the query (typically &quot;INSERT&quot;) and returns the generated ID for the row or -1 in case of an error.
    
  </dd>
</div>

</div>
<div id="unsafeColumnAt-procs-all">
  <div id="unsafeColumnAt,InstantRow,int">
  <dt><pre><span class="Keyword">proc</span> <a href="#unsafeColumnAt%2CInstantRow%2Cint"><span class="Identifier">unsafeColumnAt</span></a><span class="Other">(</span><span class="Identifier">row</span><span class="Other">:</span> <a href="db_mysql.html#InstantRow"><span class="Identifier">InstantRow</span></a><span class="Other">;</span> <span class="Identifier">index</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">cstring</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Return cstring of given column of the row
    
  </dd>
</div>

</div>

  </dl>
</div>
<div class="section" id="15">
  <h1><a class="toc-backref" href="#15">Iterators</a></h1>
  <dl class="item">
    <div id="fastRows-iterators-all">
  <div id="fastRows.i,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#fastRows.i%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">fastRows</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="db_mysql.html#Row"><span class="Identifier">Row</span></a> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    <p>executes the query and iterates over the result dataset.</p>
<p>This is very fast, but potentially dangerous.  Use this iterator only if you require <strong>ALL</strong> the rows.</p>
<p>Breaking the fastRows() iterator during a loop will cause the next database query to raise an <tt class="docutils literal"><span class="pre"><span class="Identifier">EDb</span></span></tt> exception <tt class="docutils literal"><span class="pre"><span class="Identifier">Commands</span> <span class="Keyword">out</span> <span class="Keyword">of</span> <span class="Identifier">sync</span></span></tt>.</p>

    
  </dd>
</div>

</div>
<div id="instantRows-iterators-all">
  <div id="instantRows.i,DbConn,DbColumns,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#instantRows.i%2CDbConn%2CDbColumns%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">instantRows</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">columns</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="db_common.html#DbColumns"><span class="Identifier">DbColumns</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span>
                     <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="db_mysql.html#InstantRow"><span class="Identifier">InstantRow</span></a> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Same as fastRows but returns a handle that can be used to get column text on demand using <tt class="docutils literal"><span class="pre"><span class="Punctuation">[</span><span class="Punctuation">]</span></span></tt>. Returned handle is valid only within the iterator body.
    
  </dd>
</div>
<div id="instantRows.i,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#instantRows.i%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">instantRows</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="db_mysql.html#InstantRow"><span class="Identifier">InstantRow</span></a> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Same as fastRows but returns a handle that can be used to get column text on demand using <tt class="docutils literal"><span class="pre"><span class="Punctuation">[</span><span class="Punctuation">]</span></span></tt>. Returned handle is valid only within the iterator body.
    
  </dd>
</div>

</div>
<div id="rows-iterators-all">
  <div id="rows.i,DbConn,SqlQuery,varargs[string,]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#rows.i%2CDbConn%2CSqlQuery%2Cvarargs%5Bstring%2C%5D"><span class="Identifier">rows</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="db_mysql.html#DbConn"><span class="Identifier">DbConn</span></a><span class="Other">;</span> <span class="Identifier">query</span><span class="Other">:</span> <a href="db_common.html#SqlQuery"><span class="Identifier">SqlQuery</span></a><span class="Other">;</span> <span class="Identifier">args</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Other">`</span><span class="Operator">$</span><span class="Other">`</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="db_mysql.html#Row"><span class="Identifier">Row</span></a> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><a href="db_common.html#ReadDbEffect"><span class="Identifier">ReadDbEffect</span></a><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">DbError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    same as <tt class="docutils literal"><span class="pre"><span class="Identifier">fastRows</span></span></tt>, but slower and safe.
    
  </dd>
</div>

</div>

  </dl>
</div>

  </div>
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