Question

Due to some restrictions by my client, I need to do this thing within a single mysql query.

I have a varchar field, with value like: 3,050 wheels
I have another integer field, with value: 2

I need the query to return me 6,100 wheels.

I can probably use CONVERT to convert the 3,050 to number, but I don’t know how to find the index of " ", moreover the output again needs to be formatted with a comma and concatenated back with the string(non-numeric) portion.

Please help.

Answer 1

Use SUBSTRING_INDEX to select the appropriate part of the string, and FORMAT to convert the number back to a string.

All the functions are described here.

CONCAT(FORMAT(CONVERT(SUBSTRING_INDEX(f, ' ', 1), UNSIGNED) * g, 0),
       ' ',
       SUBSTRING_INDEX(f,' ',-1))