Data.SqlExpr.TCustomSQLDataSet.PSStartTransaction
| [–] Properties | |
|---|---|
| Type: procedure function
| |
| Visibility: protected | |
| Source: Data.SqlExpr.pas Data.SqlExpr.hpp
| |
| Unit: Data.SqlExpr | |
| Parent: TCustomSQLDataSet | |
Delphi
procedure PSStartTransaction; override;
C++
virtual void __fastcall PSStartTransaction();
Description
Starts a transaction that encapsulates all activity until a call to PSEndTransaction.
Data.SqlExpr.TCustomSQLDataSet.PSStartTransaction inherits from Data.DB.TDataSet.PSStartTransaction. All content below this line refers to Data.DB.TDataSet.PSStartTransaction.
Starts a transaction that encapsulates all activity until a call to PSEndTransaction.
The provider component applies updates within a transaction, if possible. To do so, it calls PSStartTransaction to start a transaction before applying updates, and calls PSEndTransaction when all updates are applied or too many errors are encountered.
This method is an implementation of the IProviderSupport.PSStartTransaction method and, by default, is blank. To use it, every TDataSet descendant must override it in its specific way.