How to 'Create a table based on a query and delete from first 3 characters to the right'

Question

I have a simply query:

select pcode, description from outerb where pcode like '123%'

Here is a fiddle link to show you where I got to:

How would I create a new table based on the query above, but removing all characters to the right from 3rd character?

This is my expected output

pcode   description 
123        TEST     
123        TEST

Answer 1

I think you want the left() function:

select left(pcode, 3) as pcode, description, size
from table1;

Answer 2

You can use substring(string, start, length)

SELECT substring(pcode, 1, 3) AS pcode,
       description,
       size
FROM table1