It is used to rollback the last transactions, if transactions not commit.
Syntax:
ROLLBACK;
Let’s understand with an example:
Step 1: Sample data as below:
SQL Sample Data
Step 2: Now, delete all records from Students Table using BEGIN TRAN command.
Query:
BEGIN TRAN T1 DELETE Students --T1 : is Transaction name --Execute both query together
BEGIN TRAN with Delete Statement
Step 3: Now all records has been deleted.
SELECT * FROM Students
Select Statement
Step 4: But we used BEGIN TRAN before SQL Query statement, so it holds the transaction until the transaction is either committed or rolled back.
Step 5: Now we rolled back the Transaction.
ROLLBACK TRAN T1
ROLLBACK TRAN
Step 6: check again the table all records rolled back or not?
SELECT * FROM Students
SELECT Statement-2
As you saw, all records rolled back successfully!
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