Question

Can someone help me with this query please:

I have data where customers have multiple records (in a single table, this is a flat file read into a table) e.g.

Name  Policy
Fred  SSS
Fred  SST
Joe   SSS

I need to pull out all records where Policy=’SSS’ but where that customer only has a ‘SSS’ policy. So only Joe would be returned from above

Answer 1

select name
from yourtable
group by name
having count(policy)=1 and max(policy)='SSS'