Remember! Don't be too confident in writing code! Be sure to write some key log info output, or the problem will not be located.

Keep in mind that ! Don't be too confident in writing code ! Be sure to write some key logs info Output , Otherwise, the problem cannot be located .

New table must Plus 5 Field information , There is really no log to see the data modification time

create_time
create_time
create_by
update_by
enable_flag(1 There is ,0 non-existent , This field is a logical deletion )

ADD create_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT ‘ Creation time ’,
ADD update_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT ‘ Update time ’