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MySQL winter vacation self-study 2022 11 (7)
2022-07-06 02:25:00 【Crane paper thousand】
-- Query the employee information of R & D department and sales department , Include employee number 、 Employee name
select eid,ename from emp3 where dept_id in(select deptno from dept3 where name = ' R & D department ' or name = ' The sales department ');
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