MySQL datetime default time with interval

Question

Is it possible to add to a default time with NOW(), 10 minutes?

I\'ve tried something like that:

CREATE TABLE `table1` (
    `date` DATETIME NOT NULL         


        

Answer 1

You could however use an insert-trigger to accomplish this. Set the default for the 'date' column to null, and use

CREATE TRIGGER settime
BEFORE INSERT on table1
FOR EACH ROW BEGIN
    IF new.`date` is null THEN
        SET new.`date` = DATE_ADD(NOW(), INTERVAL 10 MINUTE);
    END IF;
END;

Answer 2

I dont think you can do this.

The MySQL Documentation states that:

The DEFAULT value clause in a data type specification indicates a default value for a column. With one exception, the default value must be a constant; it cannot be a function or an expression. This means, for example, that you cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE. The exception is that you can specify CURRENT_TIMESTAMP as the default for a TIMESTAMP column