STAR Queries would perform better with multiple smaller tables (known as
Dimension Tables). STAR QUERIES are designed specifically for Decision
Support Systems where multiple cartesian products are created on the smaller
(dimension) tables and then joined with the LARGE fact table.
Sam
-----Original Message-----
Sent: Thursday, March 22, 2001 4:36 AM
To: Multiple recipients of list ORACLE-L
Guys,
We r working on a Datawarehouse solution.
Our Duhvelopers want to merge all code tables into a single table by adding
a codetype column.
with reference to this, i came across this article from Steve's site
http://www.ixora.com.au/tips/design/meta-data.htm
i want to put them into different individual code tables instead of a single
table, for the foll reasons.
1. specific attributes for a particular code type is logically and
physically seperated from other code types.
2. a table lock affects only the concerned code table
3. granular control over the individual code table
i am short of arguments
wld be grateful, if ull can advise me which would be better from performance
perspective.
-Mandar
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Author: Mandar Ghosalkar
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