My next to favourite legends.
Small tables don't need to be indexed
Small tables are anything 4 blocks or less
Oracle copies the entire row into the rollback
segment when updating a single column.
Oracle copies the entire block into the rollback
segment when updating a row.
Oracle can only use 5 indexes in a query
(though I haven't heard that one much recently)
Setting tablespace default pctincrease to 1 reduces
fragmentation problems.
(but that's going out of fashion too)
But I guess you, Jeremiah and Rachel have
already got those covered.
Jonathan Lewis
http://www.jlcomp.demon.co.uk
Next Seminar - UK, April 3rd - 5th
http://www.jlcomp.demon.co.uk/seminar.html
Host to The Co-Operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html
Author of:
Practical Oracle 8i: Building Efficient Databases
-----Original Message-----
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Date: 12 March 2002 22:54
|Everyone, some great ideas....
|
|RF
|
|Robert G. Freeman - Oracle8i OCP
|Oracle DBA Technical Lead
|CSX Midtier Database Administration
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
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Author: Jonathan Lewis
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