题目内容
(请给出正确答案)
[主观题]
列出没有职工的部门()。
A、select dept.deptno from emp,dept where emp.deptno()=dept.deptno and emp.deptno is null;
B、select dept.deptno from emp,dept where emp.deptno()=dept.deptno and dept.deptno is null;
C、select dept.deptno from emp,dept where emp.deptno()=dept.deptno and emp.deptno=null;
D、select dept.deptno from emp,dept where emp.deptno=dept.deptno() and dept.deptno is null;
提问人:网友LanyingLu
发布时间:2022-01-07