Converting varchar to decimal baseball average

Question

I uploaded a CSV which automatically converted all my columns to varchar. I need to convert the value 22.30 to 0.223.

alter table badv2018
    alter column [BB          


        

Answer 1

Make it a wider value. For instance:

alter table badv2018
    alter column [BB Percent] decimal(10, 3) 

(4, 3) can only represent values from 0.000 to 9.999. You probably really want (6, 3), so 10 is overkill.

You can then add another column with the result you want:

alter table badv2018
    add column bb_ratio as ([BB Percent] / 100);