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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>TQSqlResult Class Reference<br><small>[<a href="sql.html">sql module</a>]</small></h1>
-
-<p>The TQSqlResult class provides an abstract interface for
-accessing data from SQL databases.
-<a href="#details">More...</a>
-<p><tt>#include &lt;<a href="qsqlresult-h.html">qsqlresult.h</a>&gt;</tt>
-<p><a href="qsqlresult-members.html">List of all member functions.</a>
-<h2>Public Members</h2>
-<ul>
-<li class=fn>virtual <a href="#~TQSqlResult"><b>~TQSqlResult</b></a> ()</li>
-</ul>
-<h2>Protected Members</h2>
-<ul>
-<li class=fn><a href="#TQSqlResult"><b>TQSqlResult</b></a> ( const&nbsp;TQSqlDriver&nbsp;*&nbsp;db )</li>
-<li class=fn>int <a href="#at"><b>at</b></a> () const</li>
-<li class=fn>TQString <a href="#lastQuery"><b>lastQuery</b></a> () const</li>
-<li class=fn>TQSqlError <a href="#lastError"><b>lastError</b></a> () const</li>
-<li class=fn>bool <a href="#isValid"><b>isValid</b></a> () const</li>
-<li class=fn>bool <a href="#isActive"><b>isActive</b></a> () const</li>
-<li class=fn>bool <a href="#isSelect"><b>isSelect</b></a> () const</li>
-<li class=fn>bool <a href="#isForwardOnly"><b>isForwardOnly</b></a> () const</li>
-<li class=fn>const TQSqlDriver * <a href="#driver"><b>driver</b></a> () const</li>
-<li class=fn>virtual void <a href="#setAt"><b>setAt</b></a> ( int&nbsp;at )</li>
-<li class=fn>virtual void <a href="#setActive"><b>setActive</b></a> ( bool&nbsp;a )</li>
-<li class=fn>virtual void <a href="#setLastError"><b>setLastError</b></a> ( const&nbsp;TQSqlError&nbsp;&amp;&nbsp;e )</li>
-<li class=fn>virtual void <a href="#setQuery"><b>setQuery</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;query )</li>
-<li class=fn>virtual void <a href="#setSelect"><b>setSelect</b></a> ( bool&nbsp;s )</li>
-<li class=fn>virtual void <a href="#setForwardOnly"><b>setForwardOnly</b></a> ( bool&nbsp;forward )</li>
-<li class=fn>virtual TQVariant <a href="#data"><b>data</b></a> ( int&nbsp;i ) = 0</li>
-<li class=fn>virtual bool <a href="#isNull"><b>isNull</b></a> ( int&nbsp;i ) = 0</li>
-<li class=fn>virtual bool <a href="#reset"><b>reset</b></a> ( const&nbsp;TQString&nbsp;&amp;&nbsp;query ) = 0</li>
-<li class=fn>virtual bool <a href="#fetch"><b>fetch</b></a> ( int&nbsp;i ) = 0</li>
-<li class=fn>virtual bool <a href="#fetchNext"><b>fetchNext</b></a> ()</li>
-<li class=fn>virtual bool <a href="#fetchPrev"><b>fetchPrev</b></a> ()</li>
-<li class=fn>virtual bool <a href="#fetchFirst"><b>fetchFirst</b></a> () = 0</li>
-<li class=fn>virtual bool <a href="#fetchLast"><b>fetchLast</b></a> () = 0</li>
-<li class=fn>virtual int <a href="#size"><b>size</b></a> () = 0</li>
-<li class=fn>virtual int <a href="#numRowsAffected"><b>numRowsAffected</b></a> () = 0</li>
-</ul>
-<hr><a name="details"></a><h2>Detailed Description</h2>
-
-
-The TQSqlResult class provides an abstract interface for
-accessing data from SQL databases.
-<p>
-
-<p> Normally you would use <a href="qsqlquery.html">TQSqlQuery</a> instead of TQSqlResult since TQSqlQuery
-provides a generic wrapper for database-specific implementations of
-TQSqlResult.
-<p> <p>See also <a href="qsql.html">TQSql</a> and <a href="database.html">Database Classes</a>.
-
-<hr><h2>Member Function Documentation</h2>
-<h3 class=fn><a name="TQSqlResult"></a>TQSqlResult::TQSqlResult ( const&nbsp;<a href="qsqldriver.html">TQSqlDriver</a>&nbsp;*&nbsp;db )<tt> [protected]</tt>
-</h3>
-Protected constructor which creates a TQSqlResult using database <em>db</em>. The object is initialized to an inactive state.
-
-<h3 class=fn><a name="~TQSqlResult"></a>TQSqlResult::~TQSqlResult ()<tt> [virtual]</tt>
-</h3>
-Destroys the object and frees any allocated resources.
-
-<h3 class=fn>int <a name="at"></a>TQSqlResult::at () const<tt> [protected]</tt>
-</h3>
-Returns the current (zero-based) position of the result.
-
-<h3 class=fn><a href="qvariant.html">TQVariant</a> <a name="data"></a>TQSqlResult::data ( int&nbsp;i )<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Returns the data for field <em>i</em> (zero-based) as a <a href="qvariant.html">TQVariant</a>. This
-function is only called if the result is in an active state and is
-positioned on a valid record and <em>i</em> is non-negative.
-Derived classes must reimplement this function and return the value
-of field <em>i</em>, or TQVariant() if it cannot be determined.
-
-<h3 class=fn>const&nbsp;<a href="qsqldriver.html">TQSqlDriver</a>&nbsp;* <a name="driver"></a>TQSqlResult::driver () const<tt> [protected]</tt>
-</h3>
-Returns the driver associated with the result.
-
-<h3 class=fn>bool <a name="fetch"></a>TQSqlResult::fetch ( int&nbsp;i )<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Positions the result to an arbitrary (zero-based) index <em>i</em>. This
-function is only called if the result is in an active state. Derived
-classes must reimplement this function and position the result to the
-index <em>i</em>, and call <a href="#setAt">setAt</a>() with an appropriate value. Return TRUE
-to indicate success, or FALSE to signify failure.
-
-<h3 class=fn>bool <a name="fetchFirst"></a>TQSqlResult::fetchFirst ()<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Positions the result to the first record in the result. This
-function is only called if the result is in an active state.
-Derived classes must reimplement this function and position the result
-to the first record, and call <a href="#setAt">setAt</a>() with an appropriate value.
-Return TRUE to indicate success, or FALSE to signify failure.
-
-<h3 class=fn>bool <a name="fetchLast"></a>TQSqlResult::fetchLast ()<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Positions the result to the last record in the result. This
-function is only called if the result is in an active state.
-Derived classes must reimplement this function and position the result
-to the last record, and call <a href="#setAt">setAt</a>() with an appropriate value.
-Return TRUE to indicate success, or FALSE to signify failure.
-
-<h3 class=fn>bool <a name="fetchNext"></a>TQSqlResult::fetchNext ()<tt> [virtual protected]</tt>
-</h3>
-Positions the result to the next available record in the result.
-This function is only called if the result is in an active state.
-The default implementation calls <a href="#fetch">fetch</a>() with the next index.
-Derived classes can reimplement this function and position the result
-to the next record in some other way, and call <a href="#setAt">setAt</a>() with an
-appropriate value. Return TRUE to indicate success, or FALSE to
-signify failure.
-
-<h3 class=fn>bool <a name="fetchPrev"></a>TQSqlResult::fetchPrev ()<tt> [virtual protected]</tt>
-</h3>
-Positions the result to the previous available record in the
-result. This function is only called if the result is in an active
-state. The default implementation calls <a href="#fetch">fetch</a>() with the previous
-index. Derived classes can reimplement this function and position the
-result to the next record in some other way, and call <a href="#setAt">setAt</a>() with
-an appropriate value. Return TRUE to indicate success, or FALSE to
-signify failure.
-
-<h3 class=fn>bool <a name="isActive"></a>TQSqlResult::isActive () const<tt> [protected]</tt>
-</h3>
-Returns TRUE if the result has records to be retrieved; otherwise
-returns FALSE.
-
-<h3 class=fn>bool <a name="isForwardOnly"></a>TQSqlResult::isForwardOnly () const<tt> [protected]</tt>
-</h3>
-Returns TRUE if you can only scroll forward through a result set;
-otherwise returns FALSE.
-
-<h3 class=fn>bool <a name="isNull"></a>TQSqlResult::isNull ( int&nbsp;i )<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Returns TRUE if the field at position <em>i</em> is NULL; otherwise
-returns FALSE.
-
-<h3 class=fn>bool <a name="isSelect"></a>TQSqlResult::isSelect () const<tt> [protected]</tt>
-</h3>
-Returns TRUE if the current result is from a SELECT statement;
-otherwise returns FALSE.
-
-<h3 class=fn>bool <a name="isValid"></a>TQSqlResult::isValid () const<tt> [protected]</tt>
-</h3>
-Returns TRUE if the result is positioned on a valid record (that
-is, the result is not positioned before the first or after the
-last record); otherwise returns FALSE.
-
-<h3 class=fn><a href="qsqlerror.html">TQSqlError</a> <a name="lastError"></a>TQSqlResult::lastError () const<tt> [protected]</tt>
-</h3>
-Returns the last error associated with the result.
-
-<h3 class=fn><a href="qstring.html">TQString</a> <a name="lastQuery"></a>TQSqlResult::lastQuery () const<tt> [protected]</tt>
-</h3>
-Returns the current SQL query text, or <a href="qstring.html#TQString-null">TQString::null</a> if there is none.
-
-<h3 class=fn>int <a name="numRowsAffected"></a>TQSqlResult::numRowsAffected ()<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Returns the number of rows affected by the last query executed.
-
-<h3 class=fn>bool <a name="reset"></a>TQSqlResult::reset ( const&nbsp;<a href="qstring.html">TQString</a>&nbsp;&amp;&nbsp;query )<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Sets the result to use the SQL statement <em>query</em> for subsequent
-data retrieval. Derived classes must reimplement this function and
-apply the <em>query</em> to the database. This function is called only
-after the result is set to an inactive state and is positioned
-before the first record of the new result. Derived classes should
-return TRUE if the query was successful and ready to be used,
-or FALSE otherwise.
-
-<h3 class=fn>void <a name="setActive"></a>TQSqlResult::setActive ( bool&nbsp;a )<tt> [virtual protected]</tt>
-</h3>
-Protected function provided for derived classes to set the
-internal active state to the value of <em>a</em>.
-<p> <p>See also <a href="#isActive">isActive</a>().
-
-<h3 class=fn>void <a name="setAt"></a>TQSqlResult::setAt ( int&nbsp;at )<tt> [virtual protected]</tt>
-</h3>
-Protected function provided for derived classes to set the
-internal (zero-based) result index to <em>at</em>.
-<p> <p>See also <a href="#at">at</a>().
-
-<h3 class=fn>void <a name="setForwardOnly"></a>TQSqlResult::setForwardOnly ( bool&nbsp;forward )<tt> [virtual protected]</tt>
-</h3>
-Sets forward only mode to <em>forward</em>. If forward is TRUE only
-<a href="#fetchNext">fetchNext</a>() is allowed for navigating the results. Forward only
-mode needs far less memory since results do not have to be cached.
-forward only mode is off by default.
-<p> <p>See also <a href="#fetchNext">fetchNext</a>().
-
-<h3 class=fn>void <a name="setLastError"></a>TQSqlResult::setLastError ( const&nbsp;<a href="qsqlerror.html">TQSqlError</a>&nbsp;&amp;&nbsp;e )<tt> [virtual protected]</tt>
-</h3>
-Protected function provided for derived classes to set the last
-error to the value of <em>e</em>.
-<p> <p>See also <a href="#lastError">lastError</a>().
-
-<h3 class=fn>void <a name="setQuery"></a>TQSqlResult::setQuery ( const&nbsp;<a href="qstring.html">TQString</a>&nbsp;&amp;&nbsp;query )<tt> [virtual protected]</tt>
-</h3>
-Sets the current query for the result to <em>query</em>. The result must
-be <a href="#reset">reset</a>() in order to execute the query on the database.
-
-<h3 class=fn>void <a name="setSelect"></a>TQSqlResult::setSelect ( bool&nbsp;s )<tt> [virtual protected]</tt>
-</h3>
-Protected function provided for derived classes to indicate
-whether or not the current statement is a SQL SELECT statement.
-The <em>s</em> parameter should be TRUE if the statement is a SELECT
-statement, or FALSE otherwise.
-
-<h3 class=fn>int <a name="size"></a>TQSqlResult::size ()<tt> [pure virtual protected]</tt>
-</h3>
-
-<p> Returns the size of the result or -1 if it cannot be determined.
-
-<!-- eof -->
-<hr><p>
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