MySQL default datetime through phpmyadmin

Question

In an existing database, I\'ve age column (INT). Now I need to set it as dob (DATETIME).

I try doing so through PHPMyAdmin, giving CURRENT_TIMESTAMP as default value

Answer 1

You can't set CURRENT_TIMESTAMP as default value with DATETIME.

But you can do it with TIMESTAMP.

See the difference here.

Words from this blog

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.