select * from t_dept; select * from t_dept where id = #{id}; select * from t_dept limit #{start},#{count} insert into t_dept(deptId, deptName) values(#{deptId}, #{deptName}); update t_dept set deptId = #{deptId}, deptName = #{deptName} where id = #{id} select * from t_dept where deptName like #{deptName} limit #{page.start},#{page.count} select count(*) from t_dept; delete from t_dept where id = #{id}