mysql Tinyint as unsigned

Question

I tried to write t=t|128 but got an out of range error. I suspect tinyint is signed. However http://dev.mysql.com/doc/refman/5.5/en/numeric-types.html says it may be unsigned (b

Answer 1

You mark the unsigned with the keyword unsigned. So, when making a table for an example:

CREATE TABLE `example_table` (
  `example_col` tinyint(3) unsigned NOT NULL
);

See Create Table instead for more, or the Alter table.