| class RDbTable : public RDbRowSet |
Provides access to table data as a rowset, allowing manipulation of a named table in the database. Additionally, a named index can be used to order the rowset, and to provide fast key-based row retrieval from the table.
There are no special rules to consider when deriving from this class.
| Public Member Functions | |
|---|---|
| IMPORT_C TInt | Open(RDbDatabase &, const TDesC &, TAccess) |
| IMPORT_C TBool | SeekL(const TDbSeekKey &, TComparison) |
| TInt | SetIndex(const TDesC &) |
| TInt | SetNoIndex() |
| Private Member Functions | |
|---|---|
| IMPORT_C TInt | SetIndex(const TDesC *) |
| Public Member Enumerations | |
|---|---|
| enum | TComparison { ELessThan, ELessEqual, EEqualTo, EGreaterEqual, EGreaterThan } |
| Inherited Enumerations | |
|---|---|
| RDbRowSet:TAccess | |
| RDbRowSet:TAccuracy | |
| RDbRowSet:TDirection | |
| RDbRowSet:TPosition | |
| Inherited Attributes | |
|---|---|
| RDbRowSet::iCursor | |
| IMPORT_C TInt | Open | ( | RDbDatabase & | aDatabase, |
| const TDesC & | aName, | |||
| TAccess | anAccess = EUpdatable | |||
| ) | ||||
Opens the named table object on a database with the specified access.
If successful, the rowset is positioned to the beginning.
| RDbDatabase & aDatabase | The database on which to open the table. |
| const TDesC & aName | The name of the table to open. |
| TAccess anAccess = EUpdatable | The access specification for the rowset, the default is updatable access. |
| IMPORT_C TBool | SeekL | ( | const TDbSeekKey & | aKey, |
| TComparison | aComparison = EEqualTo | |||
| ) | ||||
| const TDbSeekKey & aKey | |
| TComparison aComparison = EEqualTo |
| TInt | SetIndex | ( | const TDesC & | anIndex | ) | [inline] |
Sets the specified index as the active index for this table. The rows will be presented in index order, and this index key will be used for lookup by the SeekL() function.
If successful, the rowset is reset to the beginning.
| const TDesC & anIndex | The name of the index to activate. |
| IMPORT_C TInt | SetIndex | ( | const TDesC * | anIndex | ) | [private] |
Sets the specified index as the active index for this table. The rows will be presented in index order, and this index key will be used for lookup by the SeekL() function.
If successful, the rowset is reset to the beginning.
| const TDesC * anIndex | The name of the index to activate. |
| TInt | SetNoIndex | ( | ) | [inline] |
Sets the ordering to be the underlying ordering of the rows this will usually provide faster navigation of the rowset.
Database table seek comparison types.
| ELessThan |
Retrieve the last row which is strictly less than the key value. |
| ELessEqual |
Retrieve the last row which is equal to or less than the key value. |
| EEqualTo |
Retrieve the first row which is equal to the key value. |
| EGreaterEqual |
Retrieve the first row which is equal to or greater than the key value. |
| EGreaterThan |
Retrieve the first row which is strictly greater than the key value. |
Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights
reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.