USER_CONSTRAINTS

Name	Null?	Type	Value
OWNER	NOT NULL	VARCHAR2(30)
CONSTRAINT_NAME	NOT NULL	VARCHAR2(30)
CONSTRAINT_TYPE		VARCHAR2(1)	"R" or "P"
TABLE_NAME	NOT NULL	VARCHAR2(30)
SEARCH_CONDITION		LONG	NULL
R_OWNER		VARCHAR2(30)
R_CONSTRAINT_NAME		VARCHAR2(30)
DELETE_RULE		VARCHAR2(9)	"CASCADE" or "NOACTION" or "SET NULL"
STATUS		VARCHAR2(8)	NULL
DEFERRABLE		VARCHAR2(14)	NULL
DEFERRED		VARCHAR2(9)	NULL
VALIDATED		VARCHAR2(13)	NULL
GENERATED		VARCHAR2(14)	NULL
BAD		VARCHAR2(3)	NULL
RELY		VARCHAR2(4)	NULL
LAST_CHANGE		DATE	NULL