insert into 中使用内联视图
[@more@]-- A subquery is used to identify the table and columns of the DML statement.
SQL> insert into (select empno,ename from emp
2 where deptno=20
3 with check option)
4 values (333,'wangwang');
insert into (select empno,ename from emp
*
ERROR at line 1:
ORA-01402: view WITH CHECK OPTION where-clause violation
SQL> 1
1* insert into (select empno,ename from emp
SQL> ed
Wrote file afiedt.buf
1 insert into (select empno,ename,deptno from emp
2 where deptno=20
3 with check option)
4* values (333,'wangwang',20)
SQL> /
1 row created.
SQL> ed
Wrote file afiedt.buf
1 insert into (select empno,ename,deptno from emp
2 where deptno=20
3 with check option)
4* values (333,'wangwang',30)
SQL> /
insert into (select empno,ename,deptno from emp
*
ERROR at line 1:
ORA-01402: view WITH CHECK OPTION where-clause violation
SQL> ed
Wrote file afiedt.buf
1 insert into (select empno,ename,deptno from emp
2 --where deptno=20
3 with check option)
4* values (335,'wang5wang',30)
SQL> /
1 row created.
-- 结论：内联视图与with check option的视图所起的作用是一样的。
-- The WITH CHECK OPTION keyword prohibits you from changing rows that are not in the subquery.
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/271063/viewspace-908945/ ，如需转载，请注明出处，否则将追究法律责任。
