CREATE table of date type and use its default value as CURRENT_DATE on MySQL

Question

I tried running below code in sql command, but the code line start_date date DEFAULT CURRENT_DATE had issues, got no idea why. I needed only date.

But if I

Answer 1

In this way I was able to use CURRENT_DATE function. This code is 100% tested. Note, date value of that instance of point when new row is added is saved.

I used following, SQL first:

CREATE TABLE advertisement (
  id int(11) NOT NULL AUTO_INCREMENT,
  summary text DEFAULT NULL,
  featured_image varchar(50) DEFAULT NULL,
  start_date date DEFAULT NULL,
  end_date date NOT NULL,
  link text DEFAULT NULL,
  added_date datetime DEFAULT CURRENT_TIMESTAMP,
  updated_date datetime DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP
)

and then during adding SQL I used query as

INSERT INTO `advertisement` SET
start_date=CURRENT_DATE(),
end_date='2018-04-02',
added_date='2018-03-01 00:10:33'

Thank you all for your suggestion.

Answer 2

The documentation is quite clear that this works for datetime columns but not date columns:

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 TIMESTAMP and DATETIME columns.

If you really have your heart set on ignoring the time component, you will have to use a trigger to set the value, rather than a default constraint.