技术心得一、SQL查询:1、”列出同部门中工资高于1000的员工数量超过2人的部门,显示部门名字、地区名称”.查询语句如下:selectdistinctdept.department_name,loc.cityfromemployeesemp,departmentsdept,locationslocwhereemp.department_id=dept.department_idanddept.location_id=loc.location_idandEXISTS(select1fromemployeesemp2whereemp2.department_id=emp.department_idandemp2.salary>1000groupbyemp2.d...