We have an IMMEDIATE need to identify records in two files that match.

One file has several million records while the other has about ½ million.  We 
need to locate all records in the smaller file that are also in the larger file 
ASAP.  

 

I pose this to the group just in case someone can identify a means via SORT, 
SUPERC or some other means faster than I can research to find an existing 
method or building one. 

 

Thank You for any insights.

 

Bill


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