Answer / nirav gajjar

The Data Pump is a server based utility vs. the traditional
Export / Import which are client based utilities. The
Oracle Data Pump is not compatible with the Export / Import
functionality.

The Oracle Data Pump can also use NETWORK_LINK
functionality to move data and metadata from a remote
database without a dumpfile using the network technology
between the two databases.

Answer / kittu

Datapump has self tuning utilities where as in Exp/imp we need to specify the tuning parameters like buffer & record_length.

While doing datapump job data doesn't travel through the network, it will be done in server side only, so no data transformation through network

Answer / anonymous

We have parameters like parallel to assign number of workers in data pump, but not in exp/imp.
Also Data Pump uses stream pool of SGA.

Answer / rizwan

In traditional datapump exp/imp utility we can not stop the job when it's processing.
whereas in newly expdp/impdp utility we can stop and restart the job
for example, we are exporting the 5 mb size of table and,suppose we want to stop this job so it is possible in expdp but not through exp utility.

Explain the use of table functions.

1 Answers  

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what is the differnce between process and thread ?

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Hi This is request to DBA man Q. I have installed Oracle 10g Express edition in Linux fedora Core 6.When i have run the following script for ORACLE _HOME environment variable setting . script is ". /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/oracle_env.sh" variable is set but it is working only in current session. If i restart the system again i should run that script. So haw to set permanently ? even i have try with export command for that environment set it also does not work. Q. When i run sqlplus in shell prompt It is working but when i give user name and password the following error come out i.e # sqlplus SQL*Plus: Release 10.2.0.1.0 - Production on Fri Apr 2 19:45:40 2010 Copyright (c) 1982, 2005, Oracle. All rights reserved. Enter user-name: system Enter password: ERROR: ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist Linux Error: 2: No such file or directory I have also proper partition of disk means swap memory are available. # fdisk -l Disk /dev/sda: 40.0 GB, 40060403712 bytes 255 heads, 63 sectors/track, 4870 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 1275 10241406 7 HPFS/NTFS /dev/sda2 1276 4870 28876837+ f W95 Ext'd (LBA) /dev/sda5 1276 3187 15358108+ 7 HPFS/NTFS /dev/sda6 3188 4672 11928231 83 Linux /dev/sda7 4673 4863 1534176 82 Linux swap / Solaris

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What is the difference between Datapump & export/import?

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You have found corruption in a tablespace that contains static tables that are part of a database that is in NOARCHIVE log mode. How would you restore the tablespace without losing new data in the other tablespaces?

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How would you determine who has added a row to a table?

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