is it sufficient to normalize a database up to 3NF?
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It all depends on users aproach towards data
selec/inserts/updates
... Normelization affects data retrival severely.
we can go up to BCNF
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Answer / shwetal
If possible It should be normalize upto BCNF but it completely depends on the data
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Answer / jdfiji
dependent on application. Most transactional based
databases require this to avoid duplication etc. However,
OLAP, these type of databases (typically those used in data
warehouses etc.) are not necesarrily normalised as they are
built for performance of querying the data contained within.
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What will the SHOW_ALERT function returns ?
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HI THIS IS SHEKAR MY QUTION IS IF I HAD 10 YEARS DATA IN MY SOURCE THEN I WANT TO LOAD ONLY LAST YEAR DATA HOW IT IS POSSIBLE BY USING DATASTAGE7.5.