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Updating a substring

Author

Topic

Jim Beam
Posting Yak Master

137 Posts

Posted - 2010-10-05 : 07:32:52

Hi all,

I need to update the following data in tbldefinemessagetext.textstring so any instance of 'http://m.mirror.co.uk/alerts' changes to 'http://www.telegraph.co.uk/sport/', ie

Access for 24hrs at http://m.mirror.co.uk/alerts becomes
Access for 24hrs at http://www.telegraph.co.uk/sport/

Cheers,

Jim

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2010-10-05 : 07:38:52

update table
select column = replace(column,'searchstring','newstring')
where column like '%searchstring%'

No, you're never too old to Yak'n'Roll if you're too young to die.

Sachin.Nand

2937 Posts

Posted - 2010-10-05 : 07:40:38

[code]
declare @tbl as table(val varchar(200))
insert into @tbl
select 'Access for 24hrs at http://m.mirror.co.uk/alerts'
union
select 'Access for 24hrs at http://abc.mirror.co.uk/alerts'

update @tbl set val=
replace(val,'http://m.mirror.co.uk/alerts','http://www.telegraph.co.uk/sport/')
from @tbl

select * from @tbl
[/code]

PBUH

Sachin.Nand

2937 Posts

Posted - 2010-10-05 : 07:41:27

quote:
Originally posted by webfred

update table
select column = replace(column,'searchstring','newstring')
where column like '%searchstring%'

No, you're never too old to Yak'n'Roll if you're too young to die.

Is there a need for the where clause?

PBUH

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2010-10-05 : 09:50:52

quote:
Originally posted by Sachin.Nand

quote:
Originally posted by webfred

update table
select column = replace(column,'searchstring','newstring')
where column like '%searchstring%'

No, you're never too old to Yak'n'Roll if you're too young to die.

Is there a need for the where clause?

PBUH

Without where clause each row will be updated.

No, you're never too old to Yak'n'Roll if you're too young to die.

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