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Data Pump (impdp and expdp) replaces Import (imp) and Export (exp)

Data Pump is a replacement for the venerable IMP and EXP applications used for creating logical backups of Oracle tables, schemas or databases. Data Pump is a server application (as opposed to IMP and EXP, which were client applications) which, in beta testing, was twice as fast as the old EXP for exporting data, and ten times as fast as the old IMP for importing data.

Data Pump is callable either through the DBMS_DATAPUMP package, through the replacements for IMP and EXP, known as IMPDB and EXPDB, or through a wizard delivered as part of Oracle Enterprise Manager 10g.

 

Data Pump (and the new IMPDB and EXPDB applications) offer a number of improvements over the old IMPORT and EXPORT, including resumable/restartable jobs, automatic two-level parallelism, a 'network mode' that uses DBLINKs/listener service names instead of pipes, fine-grained object selection (so you can select individual tables, view, packages, indexes and so on for import or export, not just tables or schemas as with IMPORT and EXPORT), and a fully callable API that allows Data Pump functionality to be embedded in third-party ETL packages.

 
 
 
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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

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