Question

I was wondering if I can subtract the same value (offset) to all values of a specific column in my table.

For example I have:

Col1
------
34
35
36

I want to make it:

Col1
------
24
25
26

What’s the SQL code for doing it ?

Answer 1

Are you just doing this for display, or do you want to update the table with the reduced values?

In the first case:

select (Col1 - 10) from table

In the second (assuming you want to update ALL rows):

update table set Col1 = (Col1 - 10)