What does the Alter Table syntax look like for adding a DATETIME column?

Question

I can\'t find what the syntax looks like for adding a DATETIME column to a mysql table when I want to set the default to - example - 2011-01-26 14:30:00

Does anyone know

Answer 1

If you ever have doubts, the syntax is explained here http://dev.mysql.com/doc/refman/5.5/en/alter-table.html

ALTER TABLE yourTable 
  ADD COLUMN new_date DATETIME NOT NULL DEFAULT 20110126143000 AFTER preceding_col

or

ALTER TABLE yourTable 
  ADD COLUMN new_date DATETIME NOT NULL DEFAULT '2011-01-26 14:30:00' AFTER preceding_col

(I just prefer the numeric DATETIME format)