SQL 多表查询和嵌套查询 include:子查询返回的值不止一个、查询最低收入大于3700的部门
如图三表:题目:解决方案:(参考博客链接)selectDepartmentNamefromDepartmentwhereDepartmentIDin(selectMinSalary.DepartmentIDasDepartmentIDfrom(selectsal.DepartmentID,MIN(sal.income)asminincomefrom//✅用as为列命名以便后面使用(selectDe