We have one confusion of selecting either Lookupfileset or performing a direct lookup onto the DB2 table. We are looking into a dimension table which has around 150 million records and has 4 columns. Which is advisable ?? Either a lookup fileset or to perform a direct lookup.
Also if it is a lookup fileset, is there anyway to update only the changed records and insert new records (basically an upsert operation) into a lookup fileset.
Please clarify me regarding this. Thanks very much in advance.
Lookup fileset or direct lookup
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