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Oracle® Database Reference
11g Release 1 (11.1)

B28320-03
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V$RMAN_COMPRESSION_ALGORITHM

V$RMAN_COMPRESSION_ALGORITHM provides descriptions of supported compression algorithms. It is used by the RMAN client.

Column Datatype Description
ALGORITHM_ID NUMBER Algorithm ID
ALGORITHM_NAME VARCHAR2(64) Name of the algorithm (for example, BZIP2 or ZLIB)
ALGORITHM_DESCRIPTION VARCHAR2(64) Description of the algorithm
ALGORITHM_COMPATIBILITY VARCHAR2(18) The required database compatibility level in order for the algorithm to work (for example, 11.0.0 for ZLIB)
DATABASE_COMPATIBILITY VARCHAR2(18) Current database compatibility
IS_VALID VARCHAR2(3) Whether or not the algorithm is valid with regard to the compatibility setting. Value is YES if ALGORITHM_COMPATIBILITY<=DATABASE_COMPATIBILITY.
IS_DEFAULT VARCHAR2(3) Whether or not this is the default algorithm