column-alteration 1 column-name 2+ 2 SET 2.1? DATA TYPE data-type 2.2+ 2.2.0 default-clause 2.2.0.0! GENERATED ALWAYS 2.2.0.0? 2.2.0.0 GENERATED BY DEFAULT 2.2.0.1? identity-options 2.2.0.2 (1) 2.2.0 NOT NULL 2.2.0! NOT HIDDEN 2.2.0? 2.2.0 IMPLICITLY HIDDEN 2.2.0 FIELDPROC external-program-name 2.2.0.1? 2.2.0.1 ( 2.2.0.1.1+ , 2.2.0.1.1 constant 2.2.0.1.2 ) 2.3 (2) 2 DROP 2.1+ 2.1.0 DEFAULT 2.1.0 NOT NULL 2.1.0 IDENTITY 2.1.0 ROW CHANGE TIMESTAMP 2.1.0 FIELDPROC 2.2 (2) 2 identity-alteration identity-alteration 1+ 1 SET 1.1 INCREMENT BY numeric-constant 1.1 NO MINVALUE 1.1 MINVALUE numeric-constant 1.1 NO MAXVALUE 1.1 MAXVALUE numeric-constant 1.1 NO CYCLE 1.1 CYCLE 1.1 NO CACHE 1.1 CACHE integer 1.1 NO ORDER 1.1 ORDER 1 RESTART 1.1? WITH numeric-constant 1.2 (2)