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Property
|
Description
|
Parameter type
|
Integer
|
Default value
| 1000 |
Modifiable
| ALTER SYSTEM |
Range of values
|
0 to 1000
|
Basic
|
Yes
|
Real Application Clusters
|
Multiple instances can have different values.
|
JOB_QUEUE_PROCESSES specifies the maximum number of processes that can be created for the execution of jobs. It specifies the number of job queue processes per instance (J000, ... J999). Replication uses job queues for data refreshes. Advanced queuing uses job queues for message propagation. You can create user job requests through the DBMS_JOB package.Some job queue requests are created automatically. An example is refresh support for materialized views. If you wish to have your materialized views updated automatically, you must set
JOB_QUEUE_PROCESSES to a value of one or higher.Note:
1. Query for the current value of the parameter
select name, value, isdefault, isses_modifiable, issys_modifiable,
isinstance_modifiable, isdeprecated, description
from v$parameter
where upper(name) = ‘JOB_QUEUE_PROCESSES’;
NAME
|
VALUE
|
IS
DEFAULT
|
ISSES_
MODIFIABLE
|
ISSYS_
MODIFIABLE
|
ISINSTANCE_
MODIFIABLE
|
IS
DEPRECATED
|
DESCRIPTION
|
job_queue_processes
|
10
|
FALSE
|
FALSE
|
IMMEDIATE
|
TRUE
|
FALSE
|
number of job queue
slave processes
|
