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Trying to convert varchar to datetime


Trying to convert varchar to datetime

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ChrisM@home
ChrisM@home
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savycara (7/24/2013)
Actually 2011 is year and 4 is month which shoud be represented as 04 and date is 01 (which is to be added)

I need this column data to be in style 101


Your first post states that you want output as datetime. If you want your output as style 101, it would have to be varchar or char. Which do you want? Here's datetime:
SELECT *
FROM (SELECT strDate = '20114' UNION ALL SELECT '201112') d
CROSS APPLY (SELECT strDate2 = STUFF(strDate,5,0,CASE LEN(strDate) WHEN 5 THEN '0' ELSE '' END)+'01') x
CROSS APPLY (SELECT dtDate = CONVERT(DATETIME,x.strDate2,112)) y
CROSS APPLY (SELECT Result = CONVERT(DATETIME,STUFF(strDate,5,0,CASE LEN(strDate) WHEN 5 THEN '0' ELSE '' END)+'01',112)) z




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For better assistance in answering your questions, please read this.




Understanding and using APPLY, (I) and (II) Paul White

Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
savycara
savycara
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@kapil

Thank you
Jeff Moden
Jeff Moden
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This is a duplicate thread. Let's shift over to the other thread where there are more posts. No more posts on this thread, please. It's just dividing up the answers and making things harder to follow. Thanks folks.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
     Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is usually not.
Just because you can do something in PowerShell, doesnt mean you should. Wink

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