make table this
CREATE TABLE TT
(
CRT_DT
datetime(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) COMMENT '123123',
MOD_DT
datetime(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6) COMMENT '123123',
PRIMARY KEY (USER_ID
),
KEY CRT_DT
(CRT_DT
)
);
to heidisql create table code show
default value null!!!!
but show create table TT is perfect