SYSCHECKS system table

Describes the check constraints within the current database.
Column Name Type Length Nullability Contents
CONSTRAINTID CHAR 36 false unique identifier for the constraint
CHECKDEFINITION LONG VARCHAR   false text of check constraint definition
REFERENCEDCOLUMNS org.apache.derby.catalog. ReferencedColumns:

This class is not part of the public API.

  false description of the columns referenced by the check constraint