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 |