Question

I want to save the time when user get registered. This is my table data

nic    name    age   time
190    ali      27   2012-04-13 17:31:19
217    bilal    32   2012-04-15 02:00:40
382    hamza    21   2012-04-17 20:59:29

I manually created time attribute in MYSQL

Column : time
Type TIMESTAMP
Default : CURRENT_TIMESTAMP
attributes: on update CURRENT_TIME

Now I want to permanent save this time.. When the registered user update his profile the time automatically updated.

Is there any way to not change the time on update, I just want to save permanently time when user get registered and not to change it on any kind of update

Answer 1

Don’t specify ON UPDATE CURRENT_TIMESTAMP. Instead, rely only on the DEFAULT CURRENT_TIMESTAMP and omit the column from your INSERT statement.

By including the ON UPDATE specification, you are forcing the timestamp column to change whenever the row changes. You don’t need that.

/* Omit the time column on insert: time will get the default value. */ 
INSERT INTO user (nic, name, age) VALUES ('newuser', 'New user Name', 33);