如何在 SQL Server 2008 R2 中将系统日期格式转换为 dd/mm/yy? [英] How to convert the system date format to dd/mm/yy in SQL Server 2008 R2?

问题描述

我使用的是 SQL Server 2008 R2.我想将系统日期转换成这种格式:dd/mm/yy

I'm using SQL Server 2008 R2. I want to convert the system date to this format: dd/mm/yy

"2013-01-01 00:00:00.000" to "Score Calculation - 10/01/13".

我的列包含数据:

1. DMS01A13010101
2. RMS01A13010201
3. 44
4. 2013-01-01 00:00:00.000

我想要的是:如果记录有 2013-01-01 00:00:00.000 这种格式，那么我只更改为 Score Caculation - dd/mm/yy

What I want: if the record has 2013-01-01 00:00:00.000 in this format then only I change to Score Caculation - dd/mm/yy

我的代码是，

select 
   case 
      when (CHARINDEX(D30.SPGD30_TRACKED_ADJUSTMENT_X, '-*') > 0 or 
            CHARINDEX(D30.SPGD30_TRACKED_ADJUSTMENT_X, '*-') > 0) 
      then 'Score Calculation - ' + CONVERT(VARCHAR(8), D30.SPGD30_TRACKED_ADJUSTMENT_X, 1) 
    end checkthedate 
from 
    CSPGD30_TRACKING D30

推荐答案

   SELECT CONVERT(varchar(11),getdate(),101)  -- mm/dd/yyyy

   SELECT CONVERT(varchar(11),getdate(),103)  -- dd/mm/yyyy

检查这个.我假设 D30.SPGD30_TRACKED_ADJUSTMENT_X 是日期时间数据类型.
这就是为什么我使用 CAST() 函数将其作为字符表达式的原因，因为 CHARINDEX() 适用于字符表达式.
另外我认为不需要 OR 条件.

Check this . I am assuming D30.SPGD30_TRACKED_ADJUSTMENT_X is of datetime datatype .
That is why i am using CAST() function to make it as an character expression because CHARINDEX() works on character expression.
Also I think there is no need of OR condition.

select case when CHARINDEX('-',cast(D30.SPGD30_TRACKED_ADJUSTMENT_X as varchar )) > 0 

then 'Score Calculation - '+CONVERT(VARCHAR(11), D30.SPGD30_TRACKED_ADJUSTMENT_X, 103)
end

select case when CHARINDEX('-',D30.SPGD30_TRACKED_ADJUSTMENT_X) > 0 
then 'Score Calculation - '+
CONVERT( VARCHAR(11), CAST(D30.SPGD30_TRACKED_ADJUSTMENT_X as DATETIME) , 103)
end

请参阅此链接以转换为其他日期格式:https://www.w3schools.com/sql/func_sqlserver_convert.asp

See this link for conversion to other date formats: https://www.w3schools.com/sql/func_sqlserver_convert.asp

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