SQL Guide : Database system tables and system views : System tables : SYS_FORKEYS
  
SYS_FORKEYS
Column name
Data type
Description
ID
INTEGER
Foreign key identifier.
REF_REL_ID
INTEGER
Referenced table identifier.
CREATE_REL_ID
INTEGER
Creator table identifier.
REF_KEY_ID
INTEGER
Referenced key identifier.
REF_TYPE
INTEGER
Reference type.
KEY_SCHEMA
WVARCHAR
Creator name.
KEY_CATALOG
WVARCHAR
Creator name or the owner of the key.
KEY_NREF
INTEGER
Number of referenced key parts.
See also
System tables