mysql timestamp default date code example

Example 1: mysql CURRENT_TIMESTAMP()

CURRENT_TIMESTAMP()

Example 2: mysql timestamp to date

-- Use the FROM_UNIXTIME() function in MySQL
select from_unixtime(timestamp) from my_tbl;

Example 3: mysql change timestamp on update

ALTER TABLE whatevertable
     CHANGE whatevercolumn 
            whatevercolumn TIMESTAMP NOT NULL
                           DEFAULT CURRENT_TIMESTAMP 
                           ON UPDATE CURRENT_TIMESTAMP;

Example 4: mysql on update current_timestamp

Press CTRL+C to copy CREATE TABLE t1 (
  ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  dt DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);