Question

I have a table like this on SQL Server:

code description percentage
123  abc         1
123  oke         0
123  cfd         0
234  kde         2
234  kfc         0
234  kfc         0

How can I update the description of all ‘0 percentage’ records to non-zero percentage record for each code group? e.g. the result I’m after is:

code description percentage
123  abc         1
123  abc         0
123  abc         0
234  kde         2
234  kde         0
234  kde         0

Answer 1

Try

UPDATE Table  
SET description=(SELECT TOP 1 description 
                 FROM Table t
                 WHERE t.code = Table.code AND percentage<>'0') 
WHERE percentage='0'