Oracle cheat sheets commands part-x

1)drop view

DROP VIEW my_view CASCADE CONSTRAINTS;

2)explain plan

EXPLAIN PLAN SET STATEMENT_ID='TEST' FOR
SELECT * FROM emp WHERE EMPID=100;

3)flashback database

FLASHBACK DATABASE TO SCN 10000;
FLASHBACK DATABASE TO TIMESTAMP SYSDATE – 1/24;
FLASHBACK DATABASE TO BEFORE TIMESTAMP SYSDATE – 1/24;

4)grants: Object Grants

GRANT SELECT ON scott.my_tab TO my_user;
GRANT INSERT, UPDATE, SELECT ON scott.my_tab TO my_user;
GRANT SELECT ON scott.my_tab TO my_user WITH GRANT OPTION;
GRANT SELECT ON scott.my_tab TO PUBLIC WITH GRANT OPTION;

5)grants: System Grants

GRANT CREATE TABLE to my_user;
GRANT CREATE ANY TABLE to my_user WITH ADMIN OPTION;
GRANT ALL PRIVILEGES to my_user WITH ADMIN OPTION;

6)lock table

LOCK TABLE my_table IN EXCLUSIVE MODE NOWAIT;
LOCK TABLE my_table IN ROW EXCLUSIVE MODE;

7)rename

RENAME my_table to my_tab;

8)revoke: System Grants

REVOKE CREATE TABLE FROM my_user;
REVOKE CREATE ANY TABLE FROM my_user;
REVOKE ALL PRIVILEGES FROM my_user;

9)rollback

ROLLBACK;

10)savepoint

SAVEPOINT alpha;