You can use TINYINT data type in MySQL to store negative number. Following is the syntax −
CREATE TABLE yourTableName ( yourColumnName TINYINT . . . . N );
Let us first create a table with a column set as type TINYINT −
mysql> create table DemoTable ( Number tinyint ); Query OK, 0 rows affected (0.69 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(-10); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values(-128); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(128); ERROR 1264 (22003): Out of range value for column 'Number' at row 1 mysql> insert into DemoTable values(127); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable values(-1); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(14); Query OK, 1 row affected (0.19 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+--------+ | Number | +--------+ | -10 | | -128 | | 127 | | -1 | | 14 | +--------+ 5 rows in set (0.00 sec)