ASP.NET：用于删除重复记录的SQL语句 [英] ASP.NET: SQL statement to remove duplicate records

问题描述

我可以用来删除重复记录的任何SQL语句吗？



我试过DISTINCT但它没有帮助



这是我的sql语句：

Any SQL statement that I can use to remove duplicated records ?

I tried DISTINCT but its not helping

Here is my sql statement :

SELECT DISTINCT
                         Status_Legend.Status_Legend_ID, Status_Legend.Status_Legend_Desc, Status_Legend.Status_Legend_Severity, Station_Status_History.Status_Time
FROM            Status_Legend CROSS JOIN
                         Station_Status_History
WHERE        (Status_Legend.Status_Legend_Desc = @Status_Legend_Desc)
ORDER BY Status_Legend.Status_Legend_ID

结果：

Result :

1   good    7   2013-06-24 03:22:58 PM
1   good    7   2013-07-21 01:40:14 PM
1   good    7   2013-07-25 09:20:20 AM
1   good    7   2013-08-09 03:03:44 AM
1   good    7   2013-07-04 09:26:21 PM
1   good    7   2013-07-26 09:00:16 PM
1   good    7   2013-08-08 08:07:13 AM
1   good    7   2013-07-17 06:00:15 AM
1   good    7   2013-07-21 08:20:17 AM
1   good    7   2013-07-26 01:20:16 AM
1   good    7   2013-07-27 03:20:20 AM
1   good    7   2013-07-31 10:00:25 AM

预期结果：



1 good 7 2013-07-27 03:20:20 AM



只有一个记录



感谢你的帮助！

Expected Result :

1 good 7 2013-07-27 03:20:20 AM

Only one RECORD

Thanks for your help in advance!

推荐答案

删除重复记录

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