테이블에 걸려있는 제약조건과 컬럼확인하기(user_constraints , user_cons_columns )
SQL> select a.constraint_name, a.constraint_type, b.column_name
2 from user_constraints a, user_cons_columns b
3 where a.table_name = 'EMP'
4 and a.constraint_name = b.constraint_name;
CONSTRAINT_NAME C COLUMN_NAM
------------------------------ - ----------
PK_EMP P EMPNO
FK_DEPTNO R DEPTNO
SQL> select a.constraint_name, a.constraint_type, b.column_name
2 from user_constraints a, user_cons_columns b
3 where a.table_name = 'EMP'
4 and a.constraint_name = b.constraint_name;
CONSTRAINT_NAME C COLUMN_NAM
------------------------------ - ----------
PK_EMP P EMPNO
FK_DEPTNO R DEPTNO
| 12-27 | 2429 | |||
| 12-11 | 1775 | |||
| 53 | 03-15 | 1586 | ||
| 52 | 01-31 | 1677 | ||
| 51 | 01-31 | 2292 | ||
| 50 | 01-31 | 1324 | ||
| 49 | 01-19 | 1636 | ||
| 48 | 01-11 | 1490 | ||
| 47 | 01-03 | 2023 | ||
| 46 | 12-27 | 2429 | ||
| 45 | 12-19 | 1747 | ||
| 44 | 12-14 | 1725 | ||
| 43 | 12-11 | 1775 | ||
| 42 | 12-09 | 1396 | ||
| 41 | 12-01 | 1625 | ||
| 40 | 12-01 | 1799 | ||
| 39 | 12-01 | 1273 | ||
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