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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.

• List of all members, including inherited members

Public Functions

• Q3SqlSelectCursor ( const QString & query = QString(), QSqlDatabase db = QSqlDatabase() )
• Q3SqlSelectCursor ( const Q3SqlSelectCursor & other )
• ~Q3SqlSelectCursor ()

• 43 public functions inherited from Q3SqlCursor
• 28 public functions inherited from QSqlRecord
• 33 public functions inherited from QSqlQuery

Additional Inherited Members

• 7 protected functions inherited from Q3SqlCursor

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