With the SQL Anywhere .NET Data Provider, you can use the SATransaction object to group statements together. Each transaction ends with a COMMIT or ROLLBACK, which either makes your changes to the database permanent or cancels all the operations in the transaction. Once the transaction is complete, you must create a new SATransaction object to make further changes. This behavior is different from ODBC and embedded SQL, where a transaction persists after you execute a COMMIT or ROLLBACK until the transaction is closed.
If you do not create a transaction, the SQL Anywhere .NET Data Provider operates in autocommit mode by default. There is an implicit COMMIT after each insert, update, or delete, and once an operation is completed, the change is made to the database. In this case, the changes cannot be rolled back.
Discuter à propos de cette page dans DocCommentXchange.
|Copyright © 2013, SAP AG ou société affiliée SAP - SAP Sybase SQL Anywhere 16.0|