Hi,
The results from previous mail's query would
differ( by 1) from following....
SELECT SUM(blocks) "Allocated Blocks"
FROM dba_extents
WHERE segment_name = '&&table_name'
/
The reason for this is that one block is reserved for the
segment header. DBA_SEGMENTS.BLOCKS holds the total number
of blocks allocated to the table. While DBA_TABLES.BLOCKS holds
the total number of blocks allocated for data.
And yes, the DBMS_SPACE package would return same values
as that from DBA_TABLES.
HTH more..
Rajesh
-----Original Message-----
Sent: Monday, June 11, 2001 11:56 AM
To: '[EMAIL PROTECTED]'
If you can afford to analyze the Table(for latest statistics) then ....
1. Analyze Table <tablename> compute statistics.
2. select blocks "Used Blocks" ,
blocks + empty_blocks "Allocated Blocks"
from dba_tables where table_name = 'tablename';
hth,
Rajesh
-----Original Message-----
Sent: Monday, June 11, 2001 11:56 AM
To: Multiple recipients of list ORACLE-L
Hi,
How to find allocated and used space for a table?
I required it urgently
Regds
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