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  Oracle Tips by Burleson

Oracle10g Grid Computing with RAC
Chapter 17 -
Oracle’s Grid Integration Technologies
Data  Pump Export

job_name  – This is used to identify the export job in subsequent actions such as when the ATTACH parameter is used to attach a job (see the previous example for ATTACH).  The job name can be up to 30 characters.  In the default system-generated name, SYS_<operation>_<mode>_NN, <operation> is the type of export operations (EXPORT, EXTIMATE, and so on) you perform, <mode> can be FULL, SCHEMAS, TABLESPACES, transport_tablespaces or TABLES, and NN is a two-digit monotonically increasing integer start at 01.

Here are two examples of system-generated job names:



keep_master  – A Master Table is created at the beginning of an export operation.  At successful completion of the export job, this table is written to the dump file set, and then dropped.  If you set keep_master=y, the Master Table will not be dropped at the end of the job (this is useful for debugging purposes).

network_link  – When this parameter is set to Y, it enables a network export via a valid database link.  The data moves from a remote database to a dump file set.

nologfile  – When this parameter is set to Y, then no log file will be written out (the default is N).

parallel  – This parameter specifies the maximum number of threads of active execution servers operating on behalf of the export job (the default value is 1). This execution set is comprised of a combination of worker processes and parallel slave processes. The Master Control process and worker processes acting as query coordinators in parallel query operations do not count towards this total. (Tip: The value specified for parallel should be at least as large as the number of output files specified with the dumpfile parameter.)

schemas – This parameter defaults to the current user’s schema.  If a user has the exp_full_database privilege, a list of schemas can be specified for an export (see the example for the include parameter).

status  – This parameter specifies how frequently detailed progress information should be written to the client’s output terminal (the default value is 0). You can also use status in interactive mode to check the status of a job, as follows:

Export> status

  Operation: ESTIMATE                      
  Mode: SCHEMA                        
  State: COMPLETING                    
  Percent Done: 100
  Degree: 1
  Job Error Count: 0
Worker 1 Status:

transport_full_check  – When it is set to Y, this parameter verifies that there are no dependencies between those objects inside the transportable set and those outside the transportable set (the default value is N).

version – This specifies the version of Oracle database to which only compatible database objects are to be exported.

For more information, see the book Oracle 11g Grid and Real Application Clusters 30% off if you buy it directly from Rampant TechPress . 

Written by top Oracle experts, this RAC book has a complete online code depot with ready to use RAC scripts.

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