QUICK DATAPUMP GUIDE

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CONN sys/password@db10g AS SYSDBA
ALTER USER scott IDENTIFIED BY tiger ACCOUNT UNLOCK;
GRANT CREATE ANY DIRECTORY TO scott;
CREATE OR REPLACE DIRECTORY test_dir AS '/u01/app/oracle/oradata/';
GRANT READ, WRITE ON DIRECTORY test_dir TO scott;

expdp scott/tiger@db10g tables=EMP,DEPT directory=TEST_DIR dumpfile=EMP_DEPT.dmp logfile=expdpEMP_DEPT.log
impdp scott/tiger@db10g tables=EMP,DEPT directory=TEST_DIR dumpfile=EMP_DEPT.dmp logfile=impdpEMP_DEPT.log

expdp scott/tiger@db10g schemas=SCOTT directory=TEST_DIR dumpfile=SCOTT.dmp logfile=expdpSCOTT.log
impdp scott/tiger@db10g schemas=SCOTT directory=TEST_DIR dumpfile=SCOTT.dmp logfile=impdpSCOTT.log

expdp system/password@db10g full=Y directory=TEST_DIR dumpfile=DB10G.dmp logfile=expdpDB10G.log
impdp system/password@db10g full=Y directory=TEST_DIR dumpfile=DB10G.dmp logfile=impdpDB10G.log

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Cancelling the client process does not stop the associated data pump job. Issuing "ctrl+c" on the client
during a job stops the client output and presents a command prompt. Typing "status" at this prompt allows
you to monitor the current job:

Export> status

Job: SYS_EXPORT_FULL_01
Operation: EXPORT
Mode: FULL
State: EXECUTING
Bytes Processed: 0
Current Parallelism: 1
Job Error Count: 0
Dump File: D:TEMPDB10G.DMP
bytes written: 4,096

Worker 1 Status:
State: EXECUTING
Object Schema: SYSMAN
Object Name: MGMT_CONTAINER_CRED_ARRAY
Object Type: DATABASE_EXPORT/SCHEMA/TYPE/TYPE_SPEC
Completed Objects: 261
Total Objects: 261
Remember, this is merely the status display. The export is working in the background. To continue to see
the messages on the screen, use the command CONTINUE_CLIENT from the Export> prompt.

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expdp scott/tiger@db10g schemas=SCOTT include=TABLE:"IN ('EMP', 'DEPT')" directory=TEST_DIR dumpfile=SCOTT.dmp logfile=expdpSCOTT.log
expdp scott/tiger@db10g schemas=SCOTT exclude=TABLE:"= 'BONUS'" directory=TEST_DIR dumpfile=SCOTT.dmp logfile=expdpSCOTT.log

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You can accelerate jobs significantly using more than one thread for the export, through the PARALLEL parameter. Each thread creates
a separate dumpfile, so the parameter dumpfile should have as many entries as the degree of parallelism.

expdp ananda/abc123 tables=CASES directory=DPDATA1 dumpfile=expCASES_%U.dmp parallel=4 job_name=Cases_Export

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You can get more information on the Data Pump jobs running from the database views, too. The main view to monitor the jobs is
DBA_DATAPUMP_JOBS, which tells you how many worker processes (column DEGREE) are working on the job. The other view that is important
is DBA_DATAPUMP_SESSIONS, which when joined with the previous view and V$SESSION gives the SID of the session of the main foreground
process.