Find sum by removing first character from a string followed by numbers in MySQL?

The strings (column values) begun with a character and rest of the string has numbers. We want the sum of these numbers −

J230
A130s
C13

For this, use SUBSTRING() function along with SUM().

Let us first create a table −

mysql> create table DemoTable761 (Price varchar(100));
Query OK, 0 rows affected (0.62 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable761 values('J230');
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable761 values('A130');
Query OK, 1 row affected (0.70 sec)
mysql> insert into DemoTable761 values('C13');
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable761 values('D456');
Query OK, 1 row affected (0.21 sec)
mysql> insert into DemoTable761 values('B6');
Query OK, 1 row affected (0.13 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable761;

This will produce the following output -

+-------+
| Price |
+-------+
| J230  |
| A130  |
| C13   |
| D456  |
| B6    |
+-------+
5 rows in set (0.00 sec)

Following is the query to find the sum by removing first character from a string followed by numbers in MySQL −

mysql> select sum(substring(Price,2)) from DemoTable761;

This will produce the following output -

+-------------------------+
| sum(substring(Price,2)) |
+-------------------------+
|                     835 |
+-------------------------+
1 row in set (0.00 sec)