Re: Analyse the size of data in a table

Philippe Leclercq wrote:
>
> How to evaluate the right size of a table ( not the size of the extend, but
> the size of the data) on Oracle 7.3 / NT when the optimizer of database is
> in statistic ?

You can display number of used blocks by querying ALL_TABLES, DBA_TABLES or USER_TABLES. select blocks*db_block_size-avg_space*blocks from dba_tables;

where db_block_size is the DB_BLOCK_SIZE in the initialization parameter file.

in SQL*Plus or Server Manager.

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• Please go to http://www.hkstar.com/~rdbms/oracle.htm to find out solutions*
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Name   : Lun Wing San (Certified Oracle Database Administrator)

Title  : Oracle Database Administrator and System Administrator of QRC
Phone  : (852)27885841

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