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Converting Text Date

Author

Topic

Gregorys05
Starting Member

5 Posts

Posted - 2013-06-14 : 04:37:03

Hi all,
I am trying to covert a column heading date (Text format) to a normal date format

I have Tried

@T = '01/JUN/13'
@Fielddate = Convert(Date,@T,6)

I keep getting the error:
Conversion failed when converting date and/or time from character string

Any ideas

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-06-14 : 04:44:06

try


DECLARE @T varchar(10)='01/JUN/13'

SELECT CONVERT(datetime,STUFF(REPLACE(@T,'/',' '),8,0,'20'),106)

------------------------------------------------------------------------------------------------------
SQL Server MVP
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-06-14 : 04:46:59

Ok...reading again a small thing . if the datatype is text you need this small hack as well. I also guess its should be a column as you cant have local variable with text datatype.


SELECT CONVERT(datetime,STUFF(REPLACE(CAST(column AS varchar(max)),'/',' '),8,0,'20'),106)
FROM table

Few things to note

1. text datatype is deprecated. So you should be using varchar(max) instead
2. Please try to use appropriate datatypes for fields. If it stores date values datatype has to be datetime,date etc

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
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Gregorys05
Starting Member

5 Posts

Posted - 2013-06-14 : 05:01:34

That works Thanks

on a slight side note, the @T column cycles through the name of the columns within my table so some times the column is not a date format it could be just words is there a way to skip over the @fielddate if it errors?

stepson
Aged Yak Warrior

545 Posts

Posted - 2013-06-14 : 05:08:48

with ISDATE('expression')
you can skip
see link
http://msdn.microsoft.com/en-us/library/ms187347.aspx

select ...
from table
where ISDATE('expression')=1

Ce-am pe mine am si-n dulap, cand ma-mbrac zici ca ma mut
sabinWeb

Gregorys05
Starting Member

5 Posts

Posted - 2013-06-14 : 05:17:32

That's Brilliant thank you very much

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-06-14 : 05:17:50

quote:
Originally posted by Gregorys05

That works Thanks

on a slight side note, the @T column cycles through the name of the columns within my table so some times the column is not a date format it could be just words is there a way to skip over the @fielddate if it errors?

in that case it might be better to use functions like TRYCONVERT() available in 2012 to parse and make it datetime which will return just NULL and will not throw any error if the value is not in valid dateformat

then you could put a WHERE condition to filter off the nulls



SELECT TRY_CONVERT(datetime,STUFF(REPLACE(@T,'/',' '),8,0,'20'),106)

http://msdn.microsoft.com/en-us/library/hh230993.aspx

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
https://www.facebook.com/VmBlogs

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