MySQL CREATE table when the empty value and non-null value setting what is the fastidious

What is the value of the null and non-null settings when MySQL creates a table?
What is the value of the null and non-null settings when MySQL creates a table? MySQL

------Solution--------------------
I generally try not to use null

If your 0 and null or ' and null have different meanings, then you need to allow empty
------Solution--------------------
This post was last edited by xuzuning on 2013-03-21 08:16:39

It depends on your business needs.
Null null means nothing is entered, that is, the data item is invalid

If your business requires data items to have an initial value, then you should use NOT null (not empty) and set the initial value

