通过科室号码 查询 科室名称 直接数据库查询
select a.Dept_name, a.Dept_id from sys_dept a where a.dept_id='005001-3021' and Unit_Id ='005001'
后台的dll层的sql
select a.Dept_name, a.Dept_id from sys_dept a where a.dept_id='"+ deptid + "' and Unit_Id ='" + UnitId + "'