Question

我正在创建一个包含少量表的视图，最后我想按降序排序数据。当我在create view语句中使用ORDER BY子句时，我收到一条错误消息，指出ORDER BY子句不能包含在视图中。因此我使用SELECT TOP 100 PERCENT和ORDER BY子句。但是我的视图输出中有超过100行。我该怎么做。帮助我。

创建不带order by子句的视图语句如下。

 CREATE VIEW VW_PF_GOALEVAL_REPORT AS 

 select GEV.EVAL_ID, EV.EVAL_NAME, GEV.FORM_ID,
 GEV.EMP_NUMBER,EMP.EMP_DISPLAY_NAME, EMPS.EMP_DISPLAY_NAME AS SUP_NAME, EMPR.EMP_DISPLAY_NAME AS REV_NAME,
 GG.GGRP_ID, GG.GGRP_NAME, GG.GGRP_WEIGHTAGE,
 GEV.GOAL_ID, G.GOAL_DESC, GEV.GOAL_VERSION_NO,
 G.GOAL_WEIGHTAGE, G.GOAL_MANDATORY_FLG, G.TARGET_DATE,
 EG.RETME_ID,
 REE.RETMEITEM_GRADE AS EMP_RETMEITEM_ID, REE.RETMEITEM_DESCRIPTION AS EMP_RETMEITEM_DESC, GEV.GOALEVAL_EMP_RATING, GEV.EMP_COMMENT, 
 RES.RETMEITEM_GRADE AS SUP_RETMEITEM_ID, RES.RETMEITEM_DESCRIPTION AS SUP_RETMEITEM_DESC, GEV.GOALEVAL_SUP_RATING, GEV.SUP_COMMENT, 
 RER.RETMEITEM_GRADE AS REV_RETMEITEM_ID, RER.RETMEITEM_DESCRIPTION AS REV_RETMEITEM_DESC, GEV.SECOND_SUP_RATING, GEV.SECOND_SUP_COMMENT

 from PF_GOALEVAL GEV 

 LEFT JOIN  
 PF_EVALUATION EV
 ON GEV.EVAL_ID=EV.EVAL_ID

 left join 
 PF_GOAL G 
 ON GEV.GOAL_ID=G.GOAL_ID AND GEV.EMP_NUMBER=g.EMP_NUMBER AND GEV.EVAL_ID=G.EVAL_ID and GEV.GOAL_VERSION_NO=G.GOAL_VERSION_NO

 left join
 PF_GOAL_GROUP GG
 ON G.GOAL_TYPEID=GG.GGRP_ID

 left join 
 PF_EVALGOAL_GROUP EG
 ON GEV.EVAL_ID=EG.EVAL_ID AND GG.GGRP_ID=EG.GGRP_ID

 left join 
 PF_RETINGMETHODITEMS REE
 ON EG.RETME_ID=REE.RETME_ID AND GEV.GOALEVAL_EMP_RATING=REE.RETMEITEM_ID

 left join 
 PF_RETINGMETHODITEMS RES
 ON EG.RETME_ID=RES.RETME_ID AND GEV.GOALEVAL_SUP_RATING=RES.RETMEITEM_ID

 left join 
 PF_RETINGMETHODITEMS RER
 ON EG.RETME_ID=RER.RETME_ID AND GEV.SECOND_SUP_RATING=RER.RETMEITEM_ID

 left join 
 PF_EVALEMPLOYEE EVEMPS
 ON GEV.EMP_NUMBER=EVEMPS.EMP_NUMBER AND GEV.EVAL_ID=EVEMPS.EVAL_ID AND EVEMPS.APTYPE_ID=2
 left join
 EMPLOYEE EMPS
 ON EVEMPS.PERAPPRAISER_NUMBER = EMPS.EMP_NUMBER

 left join 
 PF_EVALEMPLOYEE EVEMPR
 ON GEV.EMP_NUMBER=EVEMPR.EMP_NUMBER AND GEV.EVAL_ID=EVEMPR.EVAL_ID AND EVEMPR.APTYPE_ID=5
 left join
 EMPLOYEE EMPR
 ON EVEMPR.PERAPPRAISER_NUMBER = EMPR.EMP_NUMBER

 left join
 EMPLOYEE EMP
 ON GEV.EMP_NUMBER=EMP.EMP_NUMBER

 left join
 PF_EVALAPPRAISER EVA
 ON gev.EVAL_ID = EVA.EVAL_ID

最后我想包括

 order by gev.GOAL_VERSION_NO DESC

语句。谢谢。

Answer 1

不是说100行，而是说100％表示所有记录

更改第一个选择

 CREATE VIEW VW_PF_GOALEVAL_REPORT AS 

 select TOP 100 PERCENT GEV.EVAL_ID, EV.EVAL_NAME, GEV.FORM_ID,

Answer 2

您不应在视图中使用Order By。如果你使用前100％，那么你可以忽略错误，但你不会得到排序结果。

我可以建议你这样使用。

Select * from VW_PF_GOALEVAL_REPORT VW
order by VW.GOAL_VERSION_NO DESC

假设您想要在视图本身中包含order by语句，您可以使用Top 99％。在这里，您可以获得排序结果，但有可能错过结果集中的几行。请在视图外使用订单。

使用order by子句创建SQL查询

2 个答案: