1. Oracle GoldenGate Classic Documentation
  2. Extract
  3. About Extract
  4. About Classic Extract

About Classic Extract

In classic extract mode, the Oracle GoldenGate Extract process extracts data changes from the Oracle redo or archive log files on the source system or from shipped archive logs on a standby system. The following diagram illustrates the configuration of an Extract in classic capture mode.

Note:

Classic Extract has been deprecated for Oracle GoldenGate 19c for Oracle Database, however, it will continue to be supported for non-Oracle Databases.
Description of classiccapture.png follows
Description of the illustration classiccapture.png

Classic extract supports most Oracle data types fully, with restricted support for the complex data types. Classic extract is the original Oracle GoldenGate extract method. You can use classic extract for any source Oracle RDBMS that is supported by Oracle GoldenGate, with the exception of the multitenant container database.

For more information, see Details of Support for Oracle Data Types and Objects.