>>Can someone help me with the SQL to find duplicate records in a table where a duplicate is considered two out of five matching fields? I thought:
>>SELECT * ;
>>FROM table;
>>WHERE keyfield IN ;
>>(SELECT keyfield ;
>>FROM tablel ;
>>GROUP BY keyfield, field2;
>>HAVING count(*) > 1)
>>would do the trick, but it doesn't work. TIA
>>
>>Erik
>Need more info. Can field1 in one record be = field2...5 in another record?

No. Here's the situation. I have a table (~280,000 records) that is sort of a transacttion table that keeps track of a member's membership history. Simplified, here's the structure: jcnum (key, integer) membnum ( foreign key, integer), activity (text), jdate(date). A record might look like this:
200101,104534,"EXPIRE", {09/01/97}. or
200102,104534,"JOIN", {04/05/95}

I want to find members who have more than one expire record, and in another query, members with more than one expire on the same date. (We have found a glitch in the program that was occasionally adding duplicate records). Thanks for your help.

Erik