Thanks for the prompt reply. I'll give this a try and let you know.
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SQL query for MS SQL Server - Find similar records in a time period
I have a database with medical/dental claims in it. I'm trying to create a SQL query that wil look at all the claims in the past week (for example) and then find any claims in the past 6 months (also for example) that might potentially be a duplicate. By duplicate I mean that the member ID is the same, the procedure code is the same, the provider (doctor) is the same and the claim dollar amount is the same.
I'm having trouble with this and am ending up creating an infinite loop of sorts where I get every claim joined to every other claim.
Any guidance on this would be greatly appreciated...
Basically the table I'm querying has columns (that I'm interested in of the form):
Date_of_service, member_id, claim_number, provider_id, diagnosis_code, claim_amount
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I think it's close but I had some other issues come up and I haven't been able to complete this task yet. I hope to be able to get back to it in the next week or so... But rather than let this question hang, I'll go ahead and accept/close it and will post any further information or questions...
Thanks...
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by: gigglickPosted on 2008-01-31 at 07:10:32ID: 20787248
select distinct mytable.member_id,mytable.
(select distinct member_id,claim_amount, diagnosis_code from mytable where Date_of_service >= '12/1/2007' and Date_of_service<='12/8/200
on mytable.member_id = new.member_id and mytable.claim_amount = new.claim_amount and mytable.diagnosis_code = new.diagnosis_code
where mytable.Date_of_service =>'1/1/2007' and mytable.Date_of_service <='12/8/2007' order by mytable.member_id, mytable.diagnosis_code, mytable.Date_of_service