A very small integer.
The signed range is -128 to 127.
The unsigned range is 0 to 255.
mysql>mysql>mysql> CREATE TABLE myTable( -> ID TINYINT UNSIGNED NOT NULL DEFAULT 1, -> Name VARCHAR(50) NOT NULL -> );Query OK, 0 rows affected (0.03 sec)mysql>mysql>mysql> INSERT INTO myTable (Name)VALUES ('A');Query OK, 1 row affected (0.00 sec)mysql>mysql> select * from myTable;+----+------+| ID | Name |+----+------+| 1 | A |+----+------+1 row in set (0.00 sec)mysql>mysql> drop table myTable;Query OK, 0 rows affected (0.00 sec)mysql>mysql>mysql>
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