You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
5.5 KiB
122 lines
5.5 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/sql/sqltable/sqltable.doc:11 -->
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|
<title>SQL Table</title>
|
|
<style type="text/css"><!--
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
|
a:link { color: #004faf; text-decoration: none }
|
|
a:visited { color: #672967; text-decoration: none }
|
|
body { background: #ffffff; color: black; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|
<tr bgcolor="#E5E5E5">
|
|
<td valign=center>
|
|
<a href="index.html">
|
|
<font color="#004faf">Home</font></a>
|
|
| <a href="classes.html">
|
|
<font color="#004faf">All Classes</font></a>
|
|
| <a href="mainclasses.html">
|
|
<font color="#004faf">Main Classes</font></a>
|
|
| <a href="annotated.html">
|
|
<font color="#004faf">Annotated</font></a>
|
|
| <a href="groups.html">
|
|
<font color="#004faf">Grouped Classes</font></a>
|
|
| <a href="functions.html">
|
|
<font color="#004faf">Functions</font></a>
|
|
</td>
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>SQL Table</h1>
|
|
|
|
|
|
<p>
|
|
This example shows how to use a <a href="ntqdatatable.html">TQDataTable</a> to browse data in a SQL database.
|
|
<p> <hr>
|
|
<p> Implementation:
|
|
<p> <pre>/****************************************************************************
|
|
**
|
|
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of an example program for TQt. This example
|
|
** program may be used, distributed and modified without limitation.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#include <<a href="qapplication-h.html">ntqapplication.h</a>>
|
|
#include <<a href="qsqldatabase-h.html">ntqsqldatabase.h</a>>
|
|
#include <<a href="qdatatable-h.html">ntqdatatable.h</a>>
|
|
#include <<a href="qsqlcursor-h.html">ntqsqlcursor.h</a>>
|
|
#include <<a href="qmessagebox-h.html">ntqmessagebox.h</a>>
|
|
|
|
/* Modify the following to match your environment */
|
|
#define DRIVER "TQSQLITE" /* see the TQt SQL documentation for a list of available drivers */
|
|
#define DATABASE ":memory:" /* the name of your database */
|
|
#define USER "" /* user name with appropriate rights */
|
|
#define PASSWORD "" /* password for USER */
|
|
#define HOST "" /* host on which the database is running */
|
|
|
|
class SimpleCursor : public <a href="ntqsqlcursor.html">TQSqlCursor</a>
|
|
{
|
|
public:
|
|
SimpleCursor () : <a href="ntqsqlcursor.html">TQSqlCursor</a>( "simpletable" ) {}
|
|
protected:
|
|
<a href="ntqsqlrecord.html">TQSqlRecord</a>* primeInsert()
|
|
{
|
|
/* a real-world application would use sequences, or the like */
|
|
<a name="x2453"></a> <a href="ntqsqlrecord.html">TQSqlRecord</a>* buf = TQSqlCursor::<a href="ntqsqlcursor.html#primeInsert">primeInsert</a>();
|
|
<a href="ntqsqlquery.html">TQSqlQuery</a> q( "select max(id)+1 from simpletable" );
|
|
if ( q.<a href="ntqsqlquery.html#next">next</a>() )
|
|
<a name="x2464"></a> buf-><a href="ntqsqlrecord.html#setValue">setValue</a>( "id", q.<a href="ntqsqlquery.html#value">value</a>(0) );
|
|
return buf;
|
|
}
|
|
};
|
|
|
|
int main( int argc, char ** argv )
|
|
{
|
|
<a href="ntqapplication.html">TQApplication</a> a( argc, argv );
|
|
|
|
<a name="x2454"></a> <a href="ntqsqldatabase.html">TQSqlDatabase</a> * db = TQSqlDatabase::<a href="ntqsqldatabase.html#addDatabase">addDatabase</a>( DRIVER );
|
|
<a name="x2457"></a> db-><a href="ntqsqldatabase.html#setDatabaseName">setDatabaseName</a>( DATABASE );
|
|
<a name="x2460"></a> db-><a href="ntqsqldatabase.html#setUserName">setUserName</a>( USER );
|
|
<a name="x2459"></a> db-><a href="ntqsqldatabase.html#setPassword">setPassword</a>( PASSWORD );
|
|
<a name="x2458"></a> db-><a href="ntqsqldatabase.html#setHostName">setHostName</a>( HOST );
|
|
|
|
<a name="x2456"></a> if( !db-><a href="ntqsqldatabase.html#open">open</a>() ){
|
|
<a name="x2455"></a> db-><a href="ntqsqldatabase.html#lastError">lastError</a>().showMessage( "An error occured. Please read the README file in the sqltable"
|
|
"dir for more information.\n\n" );
|
|
return 1;
|
|
}
|
|
|
|
<a name="x2461"></a> if (!db-><a href="ntqsqldatabase.html#tables">tables</a>().contains("simpletable")) {
|
|
<a href="ntqsqlquery.html">TQSqlQuery</a> q("create table simpletable(id int, name varchar(20), address varchar(20))", db);
|
|
}
|
|
|
|
SimpleCursor cursor;
|
|
|
|
<a href="ntqdatatable.html">TQDataTable</a> table( &cursor ); /* data table uses our cursor */
|
|
<a name="x2451"></a> table.<a href="ntqdatatable.html#addColumn">addColumn</a>( "name", "Name" );
|
|
table.<a href="ntqdatatable.html#addColumn">addColumn</a>( "address", "Address" );
|
|
<a name="x2465"></a> table.<a href="ntqtable.html#setSorting">setSorting</a>( TRUE );
|
|
|
|
a.<a href="ntqapplication.html#setMainWidget">setMainWidget</a>( &table );
|
|
<a name="x2452"></a> table.<a href="ntqdatatable.html#refresh">refresh</a>(); /* load data */
|
|
table.<a href="ntqwidget.html#show">show</a>(); /* show widget */
|
|
|
|
return a.<a href="ntqapplication.html#exec">exec</a>();
|
|
}
|
|
</pre>
|
|
|
|
<p> <p>See also <a href="sql-examples.html">TQt SQL Examples</a>.
|
|
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|