Detailed Description
The QSqlIndex class provides functions to manipulate and describe database indexes.
An index refers to a single table or view in a database. Information about the fields that comprise the index can be used to generate SQL statements.
Member Function Documentation
QSqlIndex::QSqlIndex ( const QString & cursorname = QString(), const QString & name = QString() )
Constructs an empty index using the cursor name cursorname and index name name.
QSqlIndex::QSqlIndex ( const QSqlIndex & other )
Constructs a copy of other.
QSqlIndex::~QSqlIndex ()
Destroys the object and frees any allocated resources.
void QSqlIndex::append ( const QSqlField & field )
Appends the field field to the list of indexed fields. The field is appended with an ascending sort order.
void QSqlIndex::append ( const QSqlField & field, bool desc )
This is an overloaded function.
Appends the field field to the list of indexed fields. The field is appended with an ascending sort order, unless desc is true.
QString QSqlIndex::cursorName () const
Returns the name of the cursor which the index is associated with.
See also setCursorName().
bool QSqlIndex::isDescending ( int i ) const
Returns true if field i in the index is sorted in descending order; otherwise returns false.
QString QSqlIndex::name () const
Returns the name of the index.
See also setName().
void QSqlIndex::setCursorName ( const QString & cursorName )
Sets the name of the cursor that the index is associated with to cursorName.
See also cursorName().
void QSqlIndex::setDescending ( int i, bool desc )
If desc is true, field i is sorted in descending order. Otherwise, field i is sorted in ascending order (the default). If the field does not exist, nothing happens.
See also isDescending().
void QSqlIndex::setName ( const QString & name )
Sets the name of the index to name.
See also name().
QSqlIndex & QSqlIndex::operator= ( const QSqlIndex & other )
Sets the index equal to other.
