Drop an integrity constraint.
Syntax:
DROP PRIMARY KEY [CASCADE] DROP UNIQUE column [CASCADE] DROP CONSTRAINT constraint_name
'column' can be either
a single col name or several col's separated with commas,
Related Oracle Commands:
constraint - clause
disable - Disable a constraint
Related Views:
DBA_CONSTRAINTS ALL_CONSTRAINTS USER_CONSTRAINTS
DBA_CONS_COLUMNS ALL_CONS_COLUMNS USER_CONS_COLUMNS