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Q3SqlSelectCursor Class Reference
[Qt3Support module]

The Q3SqlSelectCursor class provides browsing of general SQL SELECT statements. More...

#include <Q3SqlSelectCursor>

This class is part of the Qt 3 support library. It is provided to keep old source code working. We strongly advise against using it in new code. See Porting to Qt 4 for more information.

Note to Qt Desktop Light Edition users: This class is only available in the Qt Desktop Edition.

Inherits Q3SqlCursor.

Public Functions

Additional Inherited Members


Detailed Description

The Q3SqlSelectCursor class provides browsing of general SQL SELECT statements.

Q3SqlSelectCursor is a convenience class that makes it possible to display result sets from general SQL SELECT statements in data-aware Qt widgets. Q3SqlSelectCursor is read-only and does not support INSERT, UPDATE or DELETE operations.

Pass the query in at construction time, or use the Q3SqlSelectCursor::exec() function.

Example:

    ...
    Q3SqlSelectCursor* cur = new Q3SqlSelectCursor("SELECT id, firstname, lastname FROM author");
    Q3DataTable* table = new Q3DataTable(this);
    table->setSqlCursor(cur, true, true);
    table->refresh();
    ...
    cur->exec("SELECT * FROM books");
    table->refresh();
    ...

Member Function Documentation

Q3SqlSelectCursor::Q3SqlSelectCursor ( const QString & query = QString(), QSqlDatabase db = QSqlDatabase() )

Constructs a read only cursor on database db using the query query.

Q3SqlSelectCursor::Q3SqlSelectCursor ( const Q3SqlSelectCursor & other )

Constructs a copy of other

Q3SqlSelectCursor::~Q3SqlSelectCursor ()

Destroys the object and frees any allocated resources


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