Puoi unire le due viste, USER_CONSTRAINTS e USER_CONS_COLUMNS .
SELECT a.*,
b.constraint_type
FROM user_cons_columns A,
user_constraints b
WHERE A.owner =b.owner
AND A.constraint_name=b.constraint_name
AND A.table_name = b.table_name
and a.table_name='CLASS'
/
Ad esempio,
SQL> SELECT a.*,
2 b.constraint_type
3 FROM user_cons_columns A,
4 user_constraints b
5 WHERE A.owner =b.owner
6 AND A.constraint_name=b.constraint_name
7 AND A.table_name = b.table_name
8 and a.table_name='EMP'
9 /
OWNER CONSTRAINT_NAME TABLE_NAME COLUMN_NAME POSITION C
---------- -------------------- ---------- -------------------- ---------- -
SCOTT PK_EMP EMP EMPNO 1 P
SCOTT FK_DEPTNO EMP DEPTNO 1 R
SQL>
In un altro modo, usa DBMS_METADATA.GET_DDL per generare il DDL per la tabella. Avrà informazioni complete sulla tabella -
SQL> set long 200000 pages 0 lines 131
SQL> column txt format a121 word_wrapped
SQL> select dbms_metadata.get_ddl('TABLE', 'EMP') from dual;
CREATE TABLE "SCOTT"."EMP"
( "EMPNO" NUMBER(4,0),
"ENAME" VARCHAR2(10),
"JOB" VARCHAR2(9),
"MGR" NUMBER(4,0),
"HIREDATE" DATE,
"SAL" NUMBER(7,2),
"COMM" NUMBER(7,2),
"DEPTNO" NUMBER(2,0),
CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" ENABLE,
CONSTRAINT "FK_DEPTNO" FOREIGN KEY ("DEPTNO")
REFERENCES "SCOTT"."DEPT" ("DEPTNO") ENABLE
) SEGMENT CREATION IMMEDIATE
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255
NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS"
SQL>
Quindi, puoi vedere che il DDL generato ha informazioni complete sulla tabella.
