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Query one column to populate another


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  #1  
Old December 10th, 2003, 04:14 PM
BobbyCjnr BobbyCjnr is offline
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Question Query one column to populate another
I wonder if you can offer some assistance with this query.

I need to query a table in SQL2000 to read the value in one column and populate a new column with new data. For example:

If Column A = ABC in table Class_001 I need a query statement to populate Column Z with 123

If Column A = XYZ in table Class_001 I need a query statement to populate Column Z with 789

Your help would be much appreciated.
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Old December 10th, 2003, 04:38 PM
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Code:
update Class_001
   set Z = case when A = 'ABC' 
                then 123 
                else 789 end
 where A in ('ABC','XYZ')

rudy
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Old December 10th, 2003, 05:58 PM
BobbyCjnr BobbyCjnr is offline
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Many thanks for your quick reply.

Your query works but I have changed it slightly as I would like to populate Test with different data depending on the data in PN

This is my effort..... Is there an easier way?

update Class_021
set Test = '1' where PN = '3001'
update Class_021
set Test = '2' where PN = '3002'
update Class_021
set Test = '3' where PN = '3003'
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Old December 10th, 2003, 07:20 PM
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heck no, that looks fine
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