delete from Z_sys_role_dept where role_id=#{roleId} select count(1) from Z_sys_role_dept where dept_id=#{deptId} delete from Z_sys_role_dept where role_id in #{roleId} insert all into Z_sys_role_dept(role_id, dept_id) values (#{item.roleId},#{item.deptId}) SELECT 1 FROM DUAL