| Clustering_Factor [message #59195] |
Mon, 03 November 2003 20:00  |
Dennish Bustos
Messages: 2
Registered: November 2002
|
Junior Member |
|
|
The index clustering_factor is close to the number of table blocks. The total of all table blocks is 60532.
Why am i getting excessive consistent gets when my clustering factor is close to the number of blocks and all indexes are used?
Any suggestion or recommendations? Is there something wrong with what I am doing? Thanks
NUM_ROWS BLOCKS CLUSTERING_FACTOR
-------- ---------- -----------------
429988 7212 7096
769987 7363 7243
2801582 33829 33609
1715120 12128 11992
Statistics
----------------------------------------------------------
0 recursive calls
0 db block gets
225192 consistent gets
0 physical reads
0 redo size
1834 bytes sent via SQL*Net to client
543 bytes received via SQL*Net from client
6 SQL*Net roundtrips to/from client
1 sorts (memory)
0 sorts (disk)
67 rows processed
|
|
|
|
| Re: Clustering_Factor [message #59284 is a reply to message #59195] |
Sun, 09 November 2003 06:26  |
Thiru
Messages: 1089
Registered: May 2002
|
Senior Member |
|
|
Are these indexes from different tables ? Whats the query and its execution plan ?
Clustering factor tells you how well the table data is ordered with respect to its index values, but is not the sole contributing factor to the number of consistent gets.
|
|
|
|
] 
Blog
Search
Help
Members
Register
Login
Home
