sql auto update dupdated_at code example
Example 1: sql auto update dupdated_at
ALTER TABLE t1
ADD COLUMN created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
ADD COLUMN updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP;
Example 2: sql auto update dupdated_at
CREATE TABLE t1 (
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);