TCL - Savepoint di Oracle

Perintah savepoint digunakan untuk mengelompokan suatu transaksi yang panjang menjadi beberapa tahap, contohnya jika kita main game balapan atau rpg misalnya nah di dalem storynya misalkan character yang kita mainkan mati di tengah2 permainnan nah maka game akan kembali ke save terakhir nah kurang lebih seperti itu lah gunanya savepoint.

Untuk implementasinya, berikut adalah contoh querynya:

Berikut hasilnya:

SQL> insert into DEPARTMENTS(DEPARTMENT_ID, DEPARTMENT_NAME, LOCATION_ID)
values (DEPARTMENTS_SEQ.nextval, 'Project Manager', 1700);

1 row created.

SQL> savepoint insert_pm;

Savepoint created.

SQL> select department_id, department_name from departments;

DEPARTMENT_ID DEPARTMENT_NAME
------------- ------------------------------
          340 Project Manager
          310 Development Operation
           10 Admin

29 rows selected.

SQL> insert into DEPARTMENTS(DEPARTMENT_ID, DEPARTMENT_NAME, LOCATION_ID)
values (DEPARTMENTS_SEQ.nextval, 'Development Operation', 1700);

savepoint insert_devops;  
1 row created.

SQL> select department_id, department_name from departments;

DEPARTMENT_ID DEPARTMENT_NAME
------------- ------------------------------
          340 Project Manager
          350 Development Operation
          310 Development Operation
           10 Admin

30 rows selected.

SQL> update DEPARTMENTS
set DEPARTMENT_NAME = 'Administrator'
where DEPARTMENT_ID = 10;

savepoint update_admin;
1 row updated.

SQL>

Savepoint created.

SQL> select department_id, department_name from departments;

DEPARTMENT_ID DEPARTMENT_NAME
------------- ------------------------------
          340 Project Manager
          350 Development Operation
          310 Development Operation
           10 Administrator

30 rows selected.

SQL> rollback to savepoint insert_pm;

Rollback complete.

SQL> select department_id, department_name from departments;

DEPARTMENT_ID DEPARTMENT_NAME
------------- ------------------------------
          340 Project Manager
          310 Development Operation
           10 Admin
 
29 rows selected.

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