0. Oracle Prologue
1. SELECT
2. Function
3. GROUP BY & HAVING
4. JOIN
5. SUBQUERY
6. DDL
7. DML
8. DDL(ALTER)
9. TRANSACTION
10. VIEW
11. SEQUENCE
12. INDEX
13. SYNONYM
14. 권한과 ROLE
15.PL/SQL
16. PROCEDURE & FUNCTION
17. TRIGGER