以下表,查詢部門人數大於2的員工信息,並把員工姓名和頭銜一塊兒輸出出來string
1.員工表(employee)it
2.部門表(department)test
3.Sql語句:select
select CONCAT(name,title) ,sex,employee_no,department_id from test.employee where department_id in(select department_id from test.employee group by department_id HAVING(count(department_id)>1));im
4.結果查詢
5.主要Concat(string,string,....)和HAVING()的使用img
6.太晚了,後續補上。。。哇嘎嘎co