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QFD2


			
				
					
						
						
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<p>QSqlDatabase wrapper.  
 <a href="class_easy_qt_sql_1_1_database.htm#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="_easy_qt_sql_8h_source.htm">EasyQtSql.h</a>&gt;</code></p>
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Inheritance diagram for EasyQtSql::Database:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a456e50298d0dd2bb89ddbadee7bf2da5"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a456e50298d0dd2bb89ddbadee7bf2da5">Database</a> (const QSqlDatabase &amp;db=QSqlDatabase())</td></tr>
<tr class="separator:a456e50298d0dd2bb89ddbadee7bf2da5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4ba16ffeda09410df95720f2f7e9d872"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a4ba16ffeda09410df95720f2f7e9d872">Database</a> (<a class="el" href="class_easy_qt_sql_1_1_database.htm">Database</a> &amp;&amp;other)</td></tr>
<tr class="separator:a4ba16ffeda09410df95720f2f7e9d872"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a00ada326c3f4b3b01be26c552ad665dc"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_database.htm">Database</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a00ada326c3f4b3b01be26c552ad665dc">operator=</a> (<a class="el" href="class_easy_qt_sql_1_1_database.htm">Database</a> &amp;&amp;other)</td></tr>
<tr class="separator:a00ada326c3f4b3b01be26c552ad665dc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a55fa6c1582cdd3dd6981f53e61dce6b4"><td class="memItemLeft" align="right" valign="top">QSqlError&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a55fa6c1582cdd3dd6981f53e61dce6b4">lastError</a> () const</td></tr>
<tr class="memdesc:a55fa6c1582cdd3dd6981f53e61dce6b4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns information about the last error that occurred on the underlying database.  <a href="#a55fa6c1582cdd3dd6981f53e61dce6b4">More...</a><br /></td></tr>
<tr class="separator:a55fa6c1582cdd3dd6981f53e61dce6b4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abd563e304bb79860237c218b8bc10acd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_non_query_result.htm">NonQueryResult</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#abd563e304bb79860237c218b8bc10acd">execNonQuery</a> (const QString &amp;sql) const</td></tr>
<tr class="memdesc:abd563e304bb79860237c218b8bc10acd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes non-query SQL statement (DELETE, INSERT, UPDATE, CREATE, ALTER, etc.)  <a href="#abd563e304bb79860237c218b8bc10acd">More...</a><br /></td></tr>
<tr class="separator:abd563e304bb79860237c218b8bc10acd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5ae51f8e281cc1b41d7d48b7ca659b33"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a5ae51f8e281cc1b41d7d48b7ca659b33">execQuery</a> (const QString &amp;sql) const</td></tr>
<tr class="memdesc:a5ae51f8e281cc1b41d7d48b7ca659b33"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes SELECT query.  <a href="#a5ae51f8e281cc1b41d7d48b7ca659b33">More...</a><br /></td></tr>
<tr class="separator:a5ae51f8e281cc1b41d7d48b7ca659b33"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8fc62bc8b97ae861420068e2d1dcff8a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_insert_query.htm">InsertQuery</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a8fc62bc8b97ae861420068e2d1dcff8a">insertInto</a> (const QString &amp;table) const</td></tr>
<tr class="memdesc:a8fc62bc8b97ae861420068e2d1dcff8a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates INSERT query wrapper.  <a href="#a8fc62bc8b97ae861420068e2d1dcff8a">More...</a><br /></td></tr>
<tr class="separator:a8fc62bc8b97ae861420068e2d1dcff8a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0da534e09d06f26d517c2acd41446a80"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_delete_query.htm">DeleteQuery</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a0da534e09d06f26d517c2acd41446a80">deleteFrom</a> (const QString &amp;table) const</td></tr>
<tr class="memdesc:a0da534e09d06f26d517c2acd41446a80"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates DELETE query wrapper.  <a href="#a0da534e09d06f26d517c2acd41446a80">More...</a><br /></td></tr>
<tr class="separator:a0da534e09d06f26d517c2acd41446a80"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad99ec8b68e916201dce33cda5018be67"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_update_query.htm">UpdateQuery</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#ad99ec8b68e916201dce33cda5018be67">update</a> (const QString &amp;table) const</td></tr>
<tr class="memdesc:ad99ec8b68e916201dce33cda5018be67"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates UPDATE query wrapper.  <a href="#ad99ec8b68e916201dce33cda5018be67">More...</a><br /></td></tr>
<tr class="separator:ad99ec8b68e916201dce33cda5018be67"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af87d995c4cf5eaf4870befe2f973487d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_easy_qt_sql_1_1_prepared_query.htm">PreparedQuery</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#af87d995c4cf5eaf4870befe2f973487d">prepare</a> (const QString &amp;sql, bool forwardOnly=true) const</td></tr>
<tr class="memdesc:af87d995c4cf5eaf4870befe2f973487d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Prepares SQL statement.  <a href="#af87d995c4cf5eaf4870befe2f973487d">More...</a><br /></td></tr>
<tr class="separator:af87d995c4cf5eaf4870befe2f973487d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad4a237ca6acca4068b005d843e1551bb"><td class="memItemLeft" align="right" valign="top">QSqlDatabase &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#ad4a237ca6acca4068b005d843e1551bb">qSqlDatabase</a> ()</td></tr>
<tr class="memdesc:ad4a237ca6acca4068b005d843e1551bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a reference to the wrapped QSqlDatabase object.  <a href="#ad4a237ca6acca4068b005d843e1551bb">More...</a><br /></td></tr>
<tr class="separator:ad4a237ca6acca4068b005d843e1551bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa14b9309738dd427f7060a88ae193beb"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
<tr class="memitem:aa14b9309738dd427f7060a88ae193beb"><td class="memTemplItemLeft" align="right" valign="top">int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#aa14b9309738dd427f7060a88ae193beb">each</a> (const QString &amp;query, Func &amp;&amp;f) const</td></tr>
<tr class="memdesc:aa14b9309738dd427f7060a88ae193beb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes <em>query</em> and applies function <em>f</em> to each result row.  <a href="#aa14b9309738dd427f7060a88ae193beb">More...</a><br /></td></tr>
<tr class="separator:aa14b9309738dd427f7060a88ae193beb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7165d67d4fdfa07b3d9700d5ed5c6a63"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
<tr class="memitem:a7165d67d4fdfa07b3d9700d5ed5c6a63"><td class="memTemplItemLeft" align="right" valign="top">int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a7165d67d4fdfa07b3d9700d5ed5c6a63">first</a> (const QString &amp;query, Func &amp;&amp;f) const</td></tr>
<tr class="memdesc:a7165d67d4fdfa07b3d9700d5ed5c6a63"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes <em>query</em> and applies function <em>f</em> to the first result row.  <a href="#a7165d67d4fdfa07b3d9700d5ed5c6a63">More...</a><br /></td></tr>
<tr class="separator:a7165d67d4fdfa07b3d9700d5ed5c6a63"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1832537434940c8334fe0ca012bee8dd"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
<tr class="memitem:a1832537434940c8334fe0ca012bee8dd"><td class="memTemplItemLeft" align="right" valign="top">int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a1832537434940c8334fe0ca012bee8dd">range</a> (const QString &amp;query, int start, int count, Func &amp;&amp;f) const</td></tr>
<tr class="memdesc:a1832537434940c8334fe0ca012bee8dd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes <em>query</em> and applies function <em>f</em> to <em>count</em> result rows starting from index <em>start</em>.  <a href="#a1832537434940c8334fe0ca012bee8dd">More...</a><br /></td></tr>
<tr class="separator:a1832537434940c8334fe0ca012bee8dd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2f66f508f3cc25d0512d841f938adfb4"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
<tr class="memitem:a2f66f508f3cc25d0512d841f938adfb4"><td class="memTemplItemLeft" align="right" valign="top">int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#a2f66f508f3cc25d0512d841f938adfb4">top</a> (const QString &amp;query, int topCount, Func &amp;&amp;f) const</td></tr>
<tr class="memdesc:a2f66f508f3cc25d0512d841f938adfb4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes <em>query</em> and applies function <em>f</em> to <em>topCount</em> result rows.  <a href="#a2f66f508f3cc25d0512d841f938adfb4">More...</a><br /></td></tr>
<tr class="separator:a2f66f508f3cc25d0512d841f938adfb4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abada64f2593dd9524199f570d9387296"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
<tr class="memitem:abada64f2593dd9524199f570d9387296"><td class="memTemplItemLeft" align="right" valign="top">T&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#abada64f2593dd9524199f570d9387296">scalar</a> (const QString &amp;query) const</td></tr>
<tr class="memdesc:abada64f2593dd9524199f570d9387296"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes <em>query</em> and returns scalar value converted to T.  <a href="#abada64f2593dd9524199f570d9387296">More...</a><br /></td></tr>
<tr class="separator:abada64f2593dd9524199f570d9387296"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa06ecb239cde85058a7ed828e06906b7"><td class="memItemLeft" align="right" valign="top">QVariant&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#aa06ecb239cde85058a7ed828e06906b7">scalar</a> (const QString &amp;query) const</td></tr>
<tr class="memdesc:aa06ecb239cde85058a7ed828e06906b7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Executes <em>query</em> and returns scalar value.  <a href="#aa06ecb239cde85058a7ed828e06906b7">More...</a><br /></td></tr>
<tr class="separator:aa06ecb239cde85058a7ed828e06906b7"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
<tr class="memitem:af1da52105a07c38f77aad58df9792181"><td class="memItemLeft" align="right" valign="top">QSqlDatabase&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_database.htm#af1da52105a07c38f77aad58df9792181">m_db</a></td></tr>
<tr class="separator:af1da52105a07c38f77aad58df9792181"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>QSqlDatabase wrapper. </p>
<div class="fragment"><div class="line"><span class="keywordtype">void</span> test()</div><div class="line">{</div><div class="line">   QSqlDatabase db = QSqlDatabase::addDatabase(<span class="stringliteral">&quot;QSQLITE&quot;</span>);</div><div class="line">   db.setDatabaseName(<span class="stringliteral">&quot;:memory:&quot;</span>);</div><div class="line"></div><div class="line">   <span class="keywordflow">try</span></div><div class="line">   {</div><div class="line">      <a class="code" href="class_database.htm">Database</a> sdb(db);</div><div class="line"></div><div class="line">      sdb.execNonQuery(<span class="stringliteral">&quot;CREATE TABLE table (a int, b int, c int, d text)&quot;</span>);</div><div class="line">   }</div><div class="line">   <span class="keywordflow">catch</span> (<span class="keyword">const</span> <a class="code" href="class_d_b_exception.htm">DBException</a> &amp;e)</div><div class="line">   {</div><div class="line">      <span class="comment">//you can handle all the errors at one point</span></div><div class="line"></div><div class="line">      qDebug() &lt;&lt; e.<a class="code" href="class_d_b_exception.htm#adf142ded3fb236826a5a6ba4a606e584">lastError</a> &lt;&lt; e.<a class="code" href="class_d_b_exception.htm#a3ec8b4b593abee155554472ae0b58f12">lastQuery</a>;</div><div class="line">   }</div><div class="line">}</div></div><!-- fragment --> </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a456e50298d0dd2bb89ddbadee7bf2da5">&#9670;&nbsp;</a></span>Database() <span class="overload">[1/2]</span></h2>

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          <td>(</td>
          <td class="paramtype">const QSqlDatabase &amp;&#160;</td>
          <td class="paramname"><em>db</em> = <code>QSqlDatabase()</code></td><td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">db</td><td>QSqlDatabase to use</td></tr>
  </table>
  </dd>
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<p>Creates an <a class="el" href="class_easy_qt_sql_1_1_database.htm" title="QSqlDatabase wrapper. ">Database</a> object, tries to open <em>db</em> connection if not opened.</p>
<dl class="exception"><dt>Exceptions</dt><dd>
  <table class="exception">
    <tr><td class="paramname"><a class="el" href="class_easy_qt_sql_1_1_d_b_exception.htm" title="Exception class for SQL errors handling. ">DBException</a></td><td></td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a4ba16ffeda09410df95720f2f7e9d872">&#9670;&nbsp;</a></span>Database() <span class="overload">[2/2]</span></h2>

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          <td class="paramtype"><a class="el" href="class_easy_qt_sql_1_1_database.htm">Database</a> &amp;&amp;&#160;</td>
          <td class="paramname"><em>other</em></td><td>)</td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a0da534e09d06f26d517c2acd41446a80">&#9670;&nbsp;</a></span>deleteFrom()</h2>

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<p>Creates DELETE query wrapper. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">table</td><td>Table to delete from </td></tr>
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  </dd>
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<h2 class="memtitle"><span class="permalink"><a href="#aa14b9309738dd427f7060a88ae193beb">&#9670;&nbsp;</a></span>each()</h2>

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<p>Executes <em>query</em> and applies function <em>f</em> to each result row. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">query</td><td>SQL query string (SELECT statement) </td></tr>
    <tr><td class="paramname">f</td><td>Function (lambda) to apply to </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>num rows handled with function <em>f</em></dd></dl>
<div class="fragment"><div class="line"><a class="code" href="class_database.htm">Database</a> db;</div><div class="line">db.<a class="code" href="class_database.htm#a7a13f4fc603fb829f123894d9abd6ea7">each</a>(<span class="stringliteral">&quot;SELECT * FROM table&quot;</span>, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &amp;res)</div><div class="line">{</div><div class="line">   qDebug() &lt;&lt; res.<a class="code" href="class_query_result.htm#a023bd84f7010368d616d7dbb1b399a06">toMap</a>();</div><div class="line">});</div></div><!-- fragment --> 
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<h2 class="memtitle"><span class="permalink"><a href="#abd563e304bb79860237c218b8bc10acd">&#9670;&nbsp;</a></span>execNonQuery()</h2>

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<p>Executes non-query SQL statement (DELETE, INSERT, UPDATE, CREATE, ALTER, etc.) </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">query</td><td>SQL statement string </td></tr>
  </table>
  </dd>
</dl>
<dl class="exception"><dt>Exceptions</dt><dd>
  <table class="exception">
    <tr><td class="paramname"><a class="el" href="class_easy_qt_sql_1_1_d_b_exception.htm" title="Exception class for SQL errors handling. ">DBException</a></td><td></td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a5ae51f8e281cc1b41d7d48b7ca659b33">&#9670;&nbsp;</a></span>execQuery()</h2>

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<p>Executes SELECT query. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">query</td><td>SQL statement string </td></tr>
  </table>
  </dd>
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<dl class="exception"><dt>Exceptions</dt><dd>
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    <tr><td class="paramname"><a class="el" href="class_easy_qt_sql_1_1_d_b_exception.htm" title="Exception class for SQL errors handling. ">DBException</a></td><td></td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a7165d67d4fdfa07b3d9700d5ed5c6a63">&#9670;&nbsp;</a></span>first()</h2>

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          <td class="paramname"><em>f</em>&#160;</td>
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<p>Executes <em>query</em> and applies function <em>f</em> to the first result row. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">query</td><td>SQL query string (SELECT statement) </td></tr>
    <tr><td class="paramname">f</td><td>Function (lambda) to apply to </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>num rows handled with function <em>f</em></dd></dl>
<div class="fragment"><div class="line"><a class="code" href="class_database.htm">Database</a> db;</div><div class="line">db.<a class="code" href="class_database.htm#ad2283c7025501aafc33530d19beb02b4">first</a>(<span class="stringliteral">&quot;SELECT * FROM table&quot;</span>, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &amp;res)</div><div class="line">{</div><div class="line">   qDebug() &lt;&lt; res.<a class="code" href="class_query_result.htm#a023bd84f7010368d616d7dbb1b399a06">toMap</a>();</div><div class="line">});</div></div><!-- fragment --> 
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<h2 class="memtitle"><span class="permalink"><a href="#a8fc62bc8b97ae861420068e2d1dcff8a">&#9670;&nbsp;</a></span>insertInto()</h2>

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<p>Creates INSERT query wrapper. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">table</td><td>Table to insert into with list of columns </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a55fa6c1582cdd3dd6981f53e61dce6b4">&#9670;&nbsp;</a></span>lastError()</h2>

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<p>Returns information about the last error that occurred on the underlying database. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a00ada326c3f4b3b01be26c552ad665dc">&#9670;&nbsp;</a></span>operator=()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#af87d995c4cf5eaf4870befe2f973487d">&#9670;&nbsp;</a></span>prepare()</h2>

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<p>Prepares SQL statement. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">sql</td><td>SQL statement string </td></tr>
    <tr><td class="paramname">forwardOnly</td><td>Configure underlying QSqlQuery as forwardOnly </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ad4a237ca6acca4068b005d843e1551bb">&#9670;&nbsp;</a></span>qSqlDatabase()</h2>

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<p>Returns a reference to the wrapped QSqlDatabase object. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a1832537434940c8334fe0ca012bee8dd">&#9670;&nbsp;</a></span>range()</h2>

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<p>Executes <em>query</em> and applies function <em>f</em> to <em>count</em> result rows starting from index <em>start</em>. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">query</td><td>SQL query string (SELECT statement) </td></tr>
    <tr><td class="paramname">start</td><td>Start index </td></tr>
    <tr><td class="paramname">count</td><td>Row count to handle </td></tr>
    <tr><td class="paramname">f</td><td>Function (lambda) to apply to </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>num rows handled with function <em>f</em></dd></dl>
<div class="fragment"><div class="line"><a class="code" href="class_database.htm">Database</a> db;</div><div class="line">db.<a class="code" href="class_database.htm#a3b1fb50c3263775351fc981fda798207">range</a>(<span class="stringliteral">&quot;SELECT * FROM table&quot;</span>, 3, 10, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &amp;res)</div><div class="line">{</div><div class="line">   qDebug() &lt;&lt; res.<a class="code" href="class_query_result.htm#a023bd84f7010368d616d7dbb1b399a06">toMap</a>();</div><div class="line">});</div></div><!-- fragment --> 
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<h2 class="memtitle"><span class="permalink"><a href="#abada64f2593dd9524199f570d9387296">&#9670;&nbsp;</a></span>scalar() <span class="overload">[1/2]</span></h2>

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<p>Executes <em>query</em> and returns scalar value converted to T. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">query</td><td>SQL query string (SELECT statement) </td></tr>
  </table>
  </dd>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_easy_qt_sql_1_1_query_result.htm#a46595f825d0fd0a5c765bc6d301fccb9" title="Returns scalar value converted to type T (the value of the first column of the current row) ...">QueryResult::scalar</a> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#aa06ecb239cde85058a7ed828e06906b7">&#9670;&nbsp;</a></span>scalar() <span class="overload">[2/2]</span></h2>

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          <td class="paramname"><em>query</em></td><td>)</td>
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<p>Executes <em>query</em> and returns scalar value. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">query</td><td>SQL query string (SELECT statement) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_easy_qt_sql_1_1_query_result.htm#a46595f825d0fd0a5c765bc6d301fccb9" title="Returns scalar value converted to type T (the value of the first column of the current row) ...">QueryResult::scalar</a> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a2f66f508f3cc25d0512d841f938adfb4">&#9670;&nbsp;</a></span>top()</h2>

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template&lt;typename Func &gt; </div>
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          <td class="paramname"><em>topCount</em>, </td>
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          <td class="paramname"><em>f</em>&#160;</td>
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<p>Executes <em>query</em> and applies function <em>f</em> to <em>topCount</em> result rows. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">query</td><td>SQL query string (SELECT statement) </td></tr>
    <tr><td class="paramname">topCount</td><td>Row count to handle </td></tr>
    <tr><td class="paramname">f</td><td>Function (lambda) to apply to </td></tr>
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  </dd>
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<dl class="section return"><dt>Returns</dt><dd>num rows handled with function <em>f</em></dd></dl>
<div class="fragment"><div class="line"><a class="code" href="class_database.htm">Database</a> db;</div><div class="line">db.<a class="code" href="class_database.htm#a91583d42e701fb399563facc3c3c58c0">top</a>(<span class="stringliteral">&quot;SELECT * FROM table&quot;</span>, 10, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &amp;res)</div><div class="line">{</div><div class="line">   qDebug() &lt;&lt; res.<a class="code" href="class_query_result.htm#a023bd84f7010368d616d7dbb1b399a06">toMap</a>();</div><div class="line">});</div></div><!-- fragment --> 
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<h2 class="memtitle"><span class="permalink"><a href="#ad99ec8b68e916201dce33cda5018be67">&#9670;&nbsp;</a></span>update()</h2>

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<p>Creates UPDATE query wrapper. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">table</td><td>Table to update </td></tr>
  </table>
  </dd>
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<h2 class="groupheader">Member Data Documentation</h2>
<a id="af1da52105a07c38f77aad58df9792181"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af1da52105a07c38f77aad58df9792181">&#9670;&nbsp;</a></span>m_db</h2>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li>EasyQtSql/<a class="el" href="_easy_qt_sql_8h_source.htm">EasyQtSql.h</a></li>
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