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Oracle Tips by Burleson |
Oracle10g Grid Computing
with RAC
Chapter 17 -
Oracle’s Grid Integration Technologies
Advanced
Queuing (AQ) Queue
in the Data Pump
The Oracle
Data Pump also features two AQ queues:
-
Status
Queue: The master control process writes to the status queue. This
queue is mainly used for shadow processes to receive work in progress
and error messages queued by the master control process.
-
Control
Queue: This queue enables communication among the various processes.
All API commands, work requests, responses, file requests, and log
messages are processed on this queue.
Data Pump
Data Directory View
Following
shows the data dictionary views related to the data pump.
-
dba_datapump_jobssummarizes
all active Data Pump jobs on the system.
-
user_datapump_jobsummarizes
the current user’s active Data Pump jobs.
-
dba_datapump_sessionsdisplays
all sessions currently attached to Data Pump jobs.
-
v$session_longopsdisplays
each active Data Pump job and its progress.
Data Pump
Export
The
following table lists the new Data Pump export utility’s commands and
its comparable command in the original export utility.
|
DATA
PUMP EXPORT |
ORIGINAL EXPORT |
|
ATTACH |
|
|
CONTENT=ALL |
ROWS=Y |
|
CONTENT=METADATA_ONLY |
ROWS=N |
|
CONTENT=DATA_ONLY |
|
|
DIRECTORY |
|
|
DUMPFILE |
FILE |
|
ESTIMATE |
|
|
ESTIMATE_ONLY |
|
|
EXCLUDE and INCLUDE |
GRANTS, INDEXES,
TRIGGERS, CONSTRAINTS |
|
FILESIZE |
FILESIZE |
|
FLASHBACK_SCN |
FLASHBACK_SCN, CONSISTENT
OBJECT_CONSISTENT |
|
FLASHBACK_TIME |
FLASHBACK_TIME, CONSISTENT
OBJECT_CONSISTENT |
|
FULL |
FULL |
|
HELP |
HELP |
|
JOB_NAME |
|
|
KEEP_MASTER |
|
|
LOGFILE |
LOG |
|
NETWORK_LINK |
|
|
NOLOGFILE |
|
|
PARALLEL |
|
|
PARFILE |
PARFILE |
|
QUERY |
|
|
SCHEMAS |
OWNER |
|
STATUS |
FEEDBACK |
|
TABLES |
TABLES |
|
TABLESPACE |
TABLESPACE |
|
TRANSPORT_TABLESPACES |
TRANSPORT_TABLESPACES |
|
TRANSPORT_FULL_CHECK |
TTS_FULL_CHECK |
|
VERSION |
|
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