update value in table that is type text

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update value in table that is type text

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TRACEYSQL
Aged Yak Warrior

594 Posts

Posted - 2014-01-16 : 22:53:47

I tried to replace a value in table.

The column is text

How to do this, I tried updatetext

All that I want, is to update part of a string, using replace and update it, my replace is valid, it fails on the type column text.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2014-01-17 : 02:43:05

just cast it to varchar(max) and do the replace

see example below


declare @t table
(
t text
)
insert @t 
values('long text containing <string to be replaced> and lots of other words separated by space character')

update @t
set t =replace(cast(t as varchar(max)),'<string to be replaced>','<new string value>')

select * from @t

output
------------------------------------------
t
------------------------------------------
long text containing <new string value> and lots of other words separated by space character

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
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djj55
Constraint Violating Yak Guru

352 Posts

Posted - 2014-01-17 : 07:13:37

Please remember from BOL for UPDATETEXT "This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Use the large-value data types and the .WRITE clause of the UPDATE statement instead."

I would pull the value out of the table to a varchar(max) make the change and use WRITETEXT to put it back.

djj

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