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 datediff function
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joe8079
Posting Yak Master

USA
127 Posts

Posted - 05/15/2013 :  10:09:27  Show Profile  Reply with Quote
I have a table where the data type for the datetime field is in char(26) and not datetime. How would I do a datediff on the field below if it is in char(26) datatype instead of datetime.

2013-03-21-03.00.00.543756

joe8079
Posting Yak Master

USA
127 Posts

Posted - 05/15/2013 :  10:17:14  Show Profile  Reply with Quote
I actually just figured it out: CONVERT(DATETIME, datefield, 102)
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visakh16
Very Important crosS Applying yaK Herder

India
52326 Posts

Posted - 05/16/2013 :  00:28:59  Show Profile  Reply with Quote
quote:
Originally posted by joe8079

I actually just figured it out: CONVERT(DATETIME, datefield, 102)


be careful on format in which date values are stored in char field. Unless they're all in consistent and in valid format as per your regional/language settings code can break. In case there are multiple formats present do a series a batch updates to make them all into consistent format before you apply above convertion

http://visakhm.blogspot.in/2011/12/why-iso-format-is-recommended-while.html

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