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  ORACLE Server Parameters > 
  _db_block_prefetch_quota
 
 _db_block_prefetch_quota 
NOTE: This is an internal Oracle parameter. Do NOT use it unless instructed 
to do so by Oracle Support. Playing with this parameter may be harmful.
Oracle 11.1.0:
| Parameter Name: | _db_block_prefetch_quota
 |  | Description: | Prefetch quota as a percent of cache size                                                                                                                                                                                                                      
 |  | Type: | NUMBER                                       
     | Obsoleted: | FALSE
 |  | Can ALTER SESSION: | FALSE
     | Can ALTER SYSTEM: | IMMEDIATE
 |   
Oracle 10.2.0:
| Parameter Name: | _db_block_prefetch_quota
 |  | Description: | Prefetch quota as a percent of cache size                                                                                                                                                                                                                      
 |  | Type: | NUMBER                                       
     | Obsoleted: | FALSE
 |  | Can ALTER SESSION: | FALSE
     | Can ALTER SYSTEM: | IMMEDIATE
 |   
Oracle 10.1.0:
| Parameter Name: | _db_block_prefetch_quota
 |  | Description: | Prefetch quota as a percent of cache size                                                                                                                                                                                                                      
 |  | Type: | NUMBER                                       
     | Obsoleted: | FALSE
 |  | Can ALTER SESSION: | FALSE
     | Can ALTER SYSTEM: | IMMEDIATE
 |   
Oracle 9.2.0:
| Parameter Name: | _db_block_prefetch_quota
 |  | Description: | Prefetch quota as a percent of cache size                       
 |  | Type: | NUMBER                                       
     | Obsoleted: | FALSE
 |  | Can ALTER SESSION: | FALSE
     | Can ALTER SYSTEM: | IMMEDIATE
 |   
Oracle 8.1.7:
No such parmeter in Oracle 8.1.7.
Oracle 8.0.6:
No such parmeter in Oracle 8.0.6.
Oracle 7.3.4:
No such parmeter in Oracle 7.3.4.
 
  This parameter is not documented and should not be used.
Search for more info about 
[ _db_block_prefetch_quota ]
on the Oracle FAQ.
 
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