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Convert varchar to unsigned integer in MySQL
To convert varchar to unsigned integer, use CAST() function. Let us first create a table −
mysql> create table DemoTable868(Amount varchar(100)); Query OK, 0 rows affected (0.51 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable868 values('781');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable868 values('990');
Query OK, 1 row affected (0.25 sec)
mysql> insert into DemoTable868 values('1002');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable868 values('560');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable868 values('890');
Query OK, 1 row affected (0.26 sec)
mysql> insert into DemoTable868 values('9890');
Query OK, 1 row affected (0.06 sec)
mysql> insert into DemoTable868 values('8723');
Query OK, 1 row affected (0.16 sec)Display all records from the table using select statement −
mysql> select *from DemoTable868;
This will produce the following output −
+--------+ | Amount | +--------+ | 781 | | 990 | | 1002 | | 560 | | 890 | | 9890 | | 8723 | +--------+ 7 rows in set (0.00 sec)
Following is the query to convert varchar to unsigned integer −
mysql> select cast(Amount as unsigned) AS Amount from DemoTable868 order by Amount DESC;
This will produce the following output −
+--------+ | Amount | +--------+ | 9890 | | 8723 | | 1002 | | 990 | | 890 | | 781 | | 560 | +--------+ 7 rows in set (0.01 sec)
Updated on: 03-Sep-2019
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