Hi ssc37.

Do you have all of your match conditions defined? If so, what are they? It would be helpful to know what you are using to consider records similar.

I loaded your data into a temporary table and queried three columns as follows. 

select mm,m,k , COUNT(*) as RecCount
from [dbo].[testing_data]
group by mm,m,k
having COUNT(*) > 1

[download]

I know this isn't the Perl solution you are after, but does this help?

In reply to Re: Find similar records based on multiple column with multiple criteria by VincentK
in thread Find similar records based on multiple column with multiple criteria by ssc37

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