select top 30 pr=1,id from R_info_cashewhere contains(cashe_title,@kname)order by
(case when pr=1 then 0 else 2 end)存储过程中运行提示pr列名无效。请高手指教,怎样才能使自定义列在by 后进行条件排序时有效。
(case when pr=1 then 0 else 2 end)存储过程中运行提示pr列名无效。请高手指教,怎样才能使自定义列在by 后进行条件排序时有效。
(case when pr=1 then 0 else 2 end)
这句话中的pr无效。
as(
select top 30 pr=1,id from R_info_cashe
where contains(cashe_title,@kname)
)select * from t
order by pr,(case when pr=1 then 0 else 2 end)
这样试试
--使用CASE WHEN排序实例:
-->生成测试数据:
GO
IF OBJECT_ID('TBL')IS NOT NULL
DROP TABLE TBL
GO
CREATE TABLE TBL(
日期 DATE,
备注 VARCHAR(100)
)
GO
INSERT TBL
SELECT '2012-03-02','B' UNION ALL
SELECT '2012-03-05','C' UNION ALL
SELECT '2012-03-06','D' UNION ALL
SELECT '2012-03-07','E' UNION ALL
SELECT '2012-03-09','F' UNION ALL
SELECT '2012-03-11','G' UNION ALL
SELECT '2012-03-12','H' UNION ALL
SELECT '2012-03-13','I' UNION ALL
SELECT '2012-03-15','J' UNION ALL
SELECT '2012-03-19','K' UNION ALL
SELECT '2012-03-20','L'
--不使用union all
;with t
as(
select *,case when 日期>=getdate() then 1 else 0 end as A
from tbl
)select 日期,备注 from t
order by a,(case when a=1 then 日期 end),
(case when a=0 then 日期 end) desc/*
日期 备注
2012-03-09 F
2012-03-07 E
2012-03-06 D
2012-03-05 C
2012-03-02 B
2012-03-11 G
2012-03-12 H
2012-03-13 I
2012-03-15 J
2012-03-19 K
2012-03-20 L
*/
select top 30 pr=1,id from R_info_cashe
where contains(cashe_title,@kname))a
order by (case when pr=1 then 0 else 2 end)
这样应该也可以