RE: what is the diff between hashedfile stage and sequ...
In datastage server jobs can we use sequential filestage for a lookup instead of hashed filestage.If yes then whats the advantage of a Hashed File stage over sequential filestage
search is faster in hash files as you can directly get the address of record directly by hash algorithm as records are stored like that but in case of sequential file u must compare all the records.
RE: what is the difference between hashed file stage a...
SEQUENTIAL FILE CANT BE USED AS LOOK UP.. || HASHED FILE CAN BE USER AS LOOK UPIN SEQ.FILE REMOVING DUPLICATES IS DIFFICULT ||IT MAINLY WORKS AS HASHING ALGORITHM WITH OUT ANY KEY COLUMN IT WONT COSIDER..HASHED FILE IS UR FOR BETTER PERFORMANCE..WE INCREASE THE SIZE OF THE BUFFER IN TIS..
