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93 lines
4.3 KiB
93 lines
4.3 KiB
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<title>TQSqlSelectCursor Class</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQSqlSelectCursor Class Reference<br><small>[<a href="sql.html">sql module</a>]</small></h1>
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<p>The TQSqlSelectCursor class provides browsing of general SQL
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SELECT statements.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="tqsqlselectcursor-h.html">tqsqlselectcursor.h</a>></tt>
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<p>Inherits <a href="tqsqlcursor.html">TQSqlCursor</a>.
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<p><a href="tqsqlselectcursor-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQSqlSelectCursor"><b>TQSqlSelectCursor</b></a> ( const TQString & query = TQString::null, TQSqlDatabase * db = 0 )</li>
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<li class=fn><a href="#TQSqlSelectCursor-2"><b>TQSqlSelectCursor</b></a> ( const TQSqlSelectCursor & other )</li>
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<li class=fn><a href="#~TQSqlSelectCursor"><b>~TQSqlSelectCursor</b></a> ()</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQSqlSelectCursor class provides browsing of general SQL
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SELECT statements.
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<p>
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<p> TQSqlSelectCursor is a convenience class that makes it possible to
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display result sets from general SQL <tt>SELECT</tt> statements in
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data-aware TQt widgets. TQSqlSelectCursor is read-only and does not
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support <tt>INSERT</tt>, <tt>UPDATE</tt> or <tt>DELETE</tt> operations.
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<p> Pass the query in at construction time, or use the
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<a href="tqsqlquery.html#exec">TQSqlSelectCursor::exec</a>() function.
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<p> Example:
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<pre>
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...
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TQSqlSelectCursor* cur = new TQSqlSelectCursor( "SELECT id, firstname, lastname FROM author" );
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<a href="tqdatatable.html">TQDataTable</a>* table = new <a href="tqdatatable.html">TQDataTable</a>( this );
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table-><a href="tqdatatable.html#setSqlCursor">setSqlCursor</a>( cur, TRUE, TRUE );
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table-><a href="tqdatatable.html#refresh">refresh</a>();
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...
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cur-><a href="tqsqlquery.html#exec">exec</a>( "SELECT * FROM books" );
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table-><a href="tqdatatable.html#refresh">refresh</a>();
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...
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</pre>
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<p>See also <a href="database.html">Database Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQSqlSelectCursor"></a>TQSqlSelectCursor::TQSqlSelectCursor ( const <a href="tqstring.html">TQString</a> & query = TQString::null, <a href="tqsqldatabase.html">TQSqlDatabase</a> * db = 0 )
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</h3>
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Constructs a read only cursor on database <em>db</em> using the query <em>query</em>.
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<h3 class=fn><a name="TQSqlSelectCursor-2"></a>TQSqlSelectCursor::TQSqlSelectCursor ( const <a href="tqsqlselectcursor.html">TQSqlSelectCursor</a> & other )
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</h3> Constructs a copy of <em>other</em>
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<h3 class=fn><a name="~TQSqlSelectCursor"></a>TQSqlSelectCursor::~TQSqlSelectCursor ()
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</h3> Destroys the object and frees any allocated resources
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