13. Extending Data Pump for Data and Object Migration
The Data Pump feature of the Oracle database is a high-speed, highly scalable mechanism for transferring data and objects from one database to another (using database links), from a database to a file (export), or from a file to a database (import). Data Pump uses direct-path loading and unloading technologies to improve performance.
Data Pump can be invoked using the following methods:
Exclusive Data Pump export and import tools, using expdp and impdp
PL/SQL code calling the DBMS_DATAPUMP
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