Thursday, 24 October 2013

Data Pump vs EXP/IMP: Difference or Comparison Between Data Pump Expdp/impdp and Conventional EXP/IMP

Data Pump vs EXP/IMP: Difference or Comparison Between Data Pump Expdp/impdp and Conventional EXP/IMP


Datapump introduced in Oracle 10g whereas conventional exp/imp was used for logical backups in prior versions of oracle 10g. Exp/imp works even in all versions of Oracle.

Conventional exp/imp can utilize the client machine resource for taking the backups but, the datapump works only in server.

XML schema, XML types are supported in expdp/impdp but not in exp/imp

Parallel execution is possible in datapump which is not supported in conventional exp/imp. Using the parallel option the datapump generates multiple dump files simultaneously.

Datapump cannot export the data into sequential medias like tapes.

Datapump has better control than exp/imp on the backup job with START, STOP and RESTART options.

Datapump gives 15 – 50% performance improvement than exp/imp.

Table Extent compression can be done using COMPRESS option whereas in datapump COMPRESSION does the dumpfile compression.

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