To complete your DML statements you need to control in it by
1- CMMIT: make all Pending changes in a Transaction permanent.
2- ROLLBACK: discard pending changes and return to an earlier point in the statement.
3- SAVEPOINT: defines a marker to which you can later rollback.
Examples.
1- Commit
1- Commit
Suppose you Inset new row in Newemp Table and you want to save the latest changes
Type
Commit;
2- ROLLBACK
Suppose you inset new row in Newemp table and you want Returns the latest commit
Type
ROLLBACK;
3- SAVEPOINT
As the below example after inserting data you can create a named save point
2- ROLLBACK
Suppose you inset new row in Newemp table and you want Returns the latest commit
Type
ROLLBACK;
3- SAVEPOINT
As the below example after inserting data you can create a named save point
Insert into newemp
Select empno,ename,deptno
From emp
Where deptno=10;
Where deptno=10;
SAVEPOINT inserting_finish;
You can returned to the latest savepoint named inserting_finish
Type
ROLLBACK INSERTING_FINISH
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