修改考勤组时出现异常提示

src/main/resources/mapping/kqgl/UserEquiRelationMapper.xml

@@ -40,6 +40,7 @@
     from kqgl_asso_yhsb
     where user_id = #{userId,jdbcType=INTEGER}
     and kqjid = #{kqjid,jdbcType=INTEGER}
+    LIMIT 1
   </select>
   
   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >