store many data in a string (CHAR) vs many columns?

Vote count:

-1

Can anyone list me each datatype's memory usage in phpmyadmin ? (for bit,boolean,char,tinyint and etc)

also which is better to store many data in a text string or many columns ?

is it better this one (will store in array on php script)

or this one (will store in array on php script + data slicing)

P.S: my aim to make the server process not heavy

asked 1 min ago

code-addict

39

store many data in a string (CHAR) vs many columns?