如何创建所有列都不为空的MySQL表？

Question

I'm creating a table where I have no use for the NULL value. Therefore, all my columns are NOT NULL. This is how I create it:

CREATE TABLE example (
  id INT UNSIGNED NOT NULL,
  column1 TEXT NOT NULL,
  column2 VARCHAR(100) NOT NULL,
  column3 TIMESTAMP NOT NULL,
  ...

Do I really have to write NOT NULL all the time? Or is there a way to prevent NULL columns to be inserted (by mistake)?

Answer 1

Existing SQL specification does not support NOT NULL for a complete table. See Specification . Even MySQL 5.5 documentation clearly states that NOT NULL can be applied to column. So it can not be applied to table.