Is it possible to get last update time of the row in sql

问题

Is it possible to get last updated time and date of the row using MYSQL server.

回答1:

Well there is no inbuild feature exists with MySQL. Though you can get the same effect by adding a timestamp column:

ALTER TABLE NAMEYOURTABLE
   ADD COLUMN last_update TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

using above to create timestamp with name last_update column will make it pretty much automatically managed and updated. Now you can select from NAMEYOURTABLE the last updated row based on the timestamp.

来源：https://stackoverflow.com/questions/11505834/is-it-possible-to-get-last-update-time-of-the-row-in-sql