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Can we rollback after INSERT?
If you call ROLLBACK TRANSACTION in your trigger, then yes – your transaction, with everything it’s been doing, is rolled back and it’s as if that INSERT never happened – nothing shows up in your database table.
Is it possible to COMMIT rollback when a trigger has been executed?
The executions of COMMIT TRANSACTION and ROLLBACK TRANSACTION inside the trigger are possible. If the trigger completes execution and @@TRANCOUNT = 0, error 3609 occurs and the batch is terminated. If a BEGIN TRANSACTION statement is issued in a trigger, it creates a nested transaction.
What is deleted in trigger?
The deleted table stores copies of the affected rows during DELETE and UPDATE statements. During the execution of a DELETE or UPDATE statement, rows are deleted from the trigger table and transferred to the deleted table. The trigger table is the table on which the DML trigger runs.
Is trigger part of transaction?
The trigger is always part of the transaction for the action that fires the trigger. If an error occurs in the trigger that causes transaction rollback then the firing action will be rolled back too.
Which of the following is used to DELETE a trigger?
4. Which statement is used to remove a trigger? Explanation: In order to delete a trigger, the DROP TRIGGER statement is used.
When to call rollback transaction in SQL Server trigger?
If you call ROLLBACK TRANSACTION in your trigger, then yes – your transaction, with everything it’s been doing, is rolled back and it’s as if that INSERT never happened – nothing shows up in your database table. Also: FOR INSERT is the same as AFTER INSERT in SQL Server – the trigger is executed after the INSERT statement has done its job.
When to use insert trigger in SQL Server?
When an insert operation occurs on a SQL Server table, an insert trigger is fired. Within the trigger a cursor is opened and data is retrieved row by row from the inserted table. The retrieved rows are permutated and inserted into a couple of other tables.
What happens when a rollback is issued in a trigger?
A ROLLBACK TRANSACTION issued in the trigger always rolls back past any BEGIN TRANSACTION statements issued by the trigger itself and will roll back to the outermost BEGIN TRANSACTION (in our example it rolls up to the implied BEGIN TRANSACTION of the INSERT command). But some interesting points to note are: 1).
Is the deleted table the same as the trigger table?
The deleted table and the trigger table ordinarily have no rows in common. The inserted table stores copies of the affected rows during INSERT and UPDATE statements.