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extracting specific data from a text string in a column field in sql server 2005

Posted on 2011-10-20
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Last Modified: 2012-05-12
Hi,
I have a column in a sql server 2005 database table which typically contains the following text;
severity <WARNING> status <OPEN> event_class <ITO_WIN2K> resource_id <> appl_id <> hostname <uk123>

I want to create a  query that extracts , in the above example, the “event_class” entry only, which in this case would be “ITO_WIN2K”
The text in the column fields may not always follow the pattern above, but each filed should contain an “event_class” followed by <some data>

any help appreciated, thanks
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Question by:blossompark
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Pratima Pharande earned 2000 total points
ID: 36998525
little complecated but
surely it works for your cases

declare @str varchar(200)

set @str = '<WARNING> status <OPEN> event_class <ITO_WIN2K> resource_id <> appl_id <> hostname <uk123>'

select @str, Substring (Substring (@str,CharIndex('event_class',@str)+11,Len(@str)),CharIndex('<',Substring (@str,CharIndex('event_class',@str)+11,Len(@str)))+1, CharIndex('>',Substring (@str,CharIndex('event_class',@str)+11,Len(@str)))-CharIndex('<',Substring (@str,CharIndex('event_class',@str)+11,Len(@str)))-1)


Xhange @str with your column name
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Author Comment

by:blossompark
ID: 36998666
Hi pratima mcs, thanks for that...will try out  and update you...thanks again
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Author Closing Comment

by:blossompark
ID: 36999005
Hi pratima mcs
as usual 100% perfect solution!!
thank you....again!!
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