Error occurs when you set a negative value to UNSIGNED column in MySQL. For example, let us first create a table with an UNSIGNED field −
mysql> create table UnsignedDemo -> ( -> Id int UNSIGNED -> ); Query OK, 0 rows affected (0.79 sec)
The error is as follows whenever you insert negative value to column Id which is declared as UNSIGNED −
mysql> INSERT INTO UnsignedDemo VALUES(-100); ERROR 1264 (22003): Out of range value for column 'Id' at row 1
However, positive values work well for UNSIGNED. The same is shown in the example below. Insert some records in the above table using insert command. The query is as follows −
mysql> INSERT INTO UnsignedDemo VALUES(100); Query OK, 1 row affected (0.15 sec) mysql> INSERT INTO UnsignedDemo VALUES(1000); Query OK, 1 row affected (0.15 sec) mysql> INSERT INTO UnsignedDemo VALUES(0); Query OK, 1 row affected (0.11 sec) mysql> INSERT INTO UnsignedDemo VALUES(100000000); Query OK, 1 row affected (0.27 sec)
Display all records from the table using a select statement. The query is as follows −
mysql> SELECT *FROM UnsignedDemo;
+-----------+ | Id | +-----------+ | 100 | | 1000 | | 0 | | 100000000 | +-----------+ 4 rows in set (0.00 sec)