MySQL two column timestamp default NOW value ERROR 1067

Question

I have table as shown below. In order to workaround one default now column restriction of MySQL I used the tip as shown here

CREATE  TABLE IF NOT E         


        

Answer 1

To do this and have it work:

col1 TIMESTAMP DEFAULT 0,

col2 TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 

You don't need a trigger for col1, just ensure the value is NULL in your query. The answer is in the certification guide.