RE: Query and index modeling in 10g
- From: "VIVEK_SHARMA" <VIVEK_SHARMA@xxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>, "Stephane Faroult" <sfaroult@xxxxxxxxxxxx>
- Date: Wed, 9 Aug 2006 02:46:29 +0530
Hi
We are trying to do a Query and index modeling exercise by attempting to
MAP a significant portion of our Product's Queries to corresponding
basic Standard SQLs for SMALL, MEDIUM, BIG & Very BIG Tables using
different Types of Indexes, as mentioned below:-
Our Product is a Hybrid Banking Application.
Currently mapping has been done to basic Standard Queries which use a
Single Table only:-
* Basic Standard SQLs containing SELECT, UPDATE, DELETE of the
following types have been mapped:-
- Point (returns 1 row)
- Multipoint (returns more than 1 row)
- Range scan (where Clause has a range specification)
- Prefix and suffix
- Conjunctive point (where Clause using all the key fields of
the unique index, up to 3 fields)
- Extremal
* INSERT
* Additionally
- Update using ROWID
- Select using ROWNUM
Types of Indexes Used:-
* Normal index
* Index organized table
* B+ tree cluster
* Hash cluster
Qs. 1 How to approach, map & define standard SQLs having a JOIN between
multiple Tables (i.e. 2, 3 Tables)
Qs. 2 How do we extend this to Sub-queries, In-line queries etc.?
Qs. 3 Any Docs, Links, Books on similar work done before?
Thanks indeed
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