DataSourceHandle :: BeginTransaction - Start transaction for the data source
Data sources provide simple transaction control. Data source transactions cannot be nested, i.e. when a transaction is running for the data source no other transaction can be started.
Using nested transactions is possible with the DBObjectHandle.
For running very long transactions, the external transaction option should be passed as YES. External transactions provide an external storage for storing the transaction.
Return value: Success ( logical )
Implementation details
logical
DataSourceHandle :: BeginTransaction ( logical ext_ta=NO )
- ext_ta
- External Transaction
The option indicates that updates made within the transaction should be stored on a disk. This option should be set when the transaction is a long transaction that held many (i.e. 100 000) or more updates in the transaction.
Default: NO