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8022421
Starting Member
45 Posts |
 Posted - 2009-01-30 : 11:39:50
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| I have column called ACGT_key which holds a string value as '2008042518430643200007112021486300000000' , The first 8 characters include date and other 8 characters include the time and the next 8 characters include the date and gain the next 8 characters include the time. My task is to update this date & time which is previosuly there with the current date & time, I don't want to alter the other columns which is existing , I just want to update just system date and time without affecting the other columns,Please help me in this. |
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Skorch
Constraint Violating Yak Guru
300 Posts |
Posted - 2009-01-30 : 11:49:20
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| So you have a string that is a concatenation of two datetimes? Wow. Do you need to update both halves of the string to the current datetime or just the first half?Some days you're the dog, and some days you're the fire hydrant. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2009-01-30 : 11:49:20
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| you want to replace this column value with current datetime? |
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harsh_athalye
Master Smack Fu Yak Hacker
5581 Posts |
Posted - 2009-01-30 : 11:49:27
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| Which date and time do you want to update? First or second?Harsh AthalyeIndia."The IMPOSSIBLE is often UNTRIED" |
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Skorch
Constraint Violating Yak Guru
300 Posts |
Posted - 2009-01-30 : 11:50:13
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quote:
Originally posted by visakh16
you want to replace this column value with current datetime?
We posted at the same time :DSome days you're the dog, and some days you're the fire hydrant. |
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8022421
Starting Member
45 Posts |
Posted - 2009-01-30 : 11:50:16
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| I want to update the both the half with the current date and time.. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2009-01-30 : 11:55:48
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quote:
Originally posted by Skorch
quote:
Originally posted by visakh16
you want to replace this column value with current datetime?
We posted at the same time :DSome days you're the dog, and some days you're the fire hydrant.
wow! thts cool  |
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Skorch
Constraint Violating Yak Guru
300 Posts |
Posted - 2009-01-30 : 12:40:56
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| Assuming you just want to replace the first 16 characters of that string with the current datetime, this should work. It's very ugly though.SELECT REPLACE(ACGT_key, SUBSTRING(ACGT_key,0,17),REPLACE(REPLACE(REPLACE(REPLACE(CONVERT(VARCHAR(22),GETDATE(),121),'-',''),':',''),'.',''),' ',''))FROM YourTableYou should be able to convert this select into an update after verifying that this is the expected result.Some days you're the dog, and some days you're the fire hydrant. |
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8022421
Starting Member
45 Posts |
Posted - 2009-01-30 : 13:10:58
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| Thanks Skorch...Thats great,,, |
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Skorch
Constraint Violating Yak Guru
300 Posts |
Posted - 2009-01-30 : 13:11:22
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| You're welcome.Some days you're the dog, and some days you're the fire hydrant. |
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self update to a column