Introduction
Default values
Summary
Instruction
Very nice! You can also use DEFAULT in an UPDATE statement.
If the column has a set default value, you can update data using the default value of this column. For example:
UPDATE author SET photo = DEFAULT WHERE id = 2;
This statement removes the picture from the account of the author whose id = 2. The remaining data doesn't need to change, so we update the row rather than delete it. The photo column has a default value, so we used it to update the row. Now the string 'imgs/no-photo.jpg' will be the photo column value for this author.
Exercise
The author Alan Hillary (id = 3) would like to set the is_active value to the default and change the path for his photo to imgs/alan3.jpg.
Stuck? Here's a hint!
Use is_active = DEFAULT in the UPDATE statement.
