Convert hex string to number in MySQL?

Use the CONV() method to convert hex string to number −

select CONV(yourColumnName,16,10) AS anyAliasName from yourTableName;

Let us first create a table −

mysql> create table DemoTable
-> (
-> HexString varchar(100)
-> );
Query OK, 0 rows affected (0.82 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable values('A');
Query OK, 1 row affected (0.28 sec)

mysql> insert into DemoTable values('F');
Query OK, 1 row affected (0.19 sec)

mysql> insert into DemoTable values('B');
Query OK, 1 row affected (0.55 sec)

mysql> insert into DemoTable values('ABC');
Query OK, 1 row affected (0.11 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

Output

This will produce the following output −

+-----------+
| HexString |
+-----------+
| A         |
| F         |
| B         |
| ABC       |
+-----------+
4 rows in set (0.00 sec)

Following is the query to convert hex string to number in MySQL −

mysql> select CONV(HexString,16,10) AS Number from DemoTable;

Output

This will produce the following output −

+--------+
| Number |
+--------+
| 10     |
| 15     |
| 11     |
| 2748   |
+--------+
4 rows in set (0.00 sec)