# REFERENCES clause

    REFERENCES tableName [ ( simpleColumnName [ , simpleColumnName ]* ) ]
    [ ON DELETE { NO ACTION | RESTRICT | CASCADE | SET NULL } ]
       [ ON UPDATE { NO ACTION | RESTRICT } ]
    |
    [ ON UPDATE { NO ACTION | RESTRICT } ]
       [ ON DELETE { NO ACTION | RESTRICT | CASCADE | SET NULL } ]

Parent topic: CONSTRAINT clause
Related reference
columnLevelConstraint
tableLevelConstraint
constraintCharacteristics