Replacing null with zero

Question

Hi I have following select command in SQL Server. I am trying to change it so if b.bId is null i want to assign it 0 value. So it displays 0 in the field.

selec         


        

Answer 1

Or you can use the COALESCE Function

COALESCE(b.bId, 0) AS bId

Performance: ISNULL vs. COALESCE

Answer 2

As another alternative you could execute this sql at your ts table

update ts
set id = ''
where id is null

Answer 3

You can use the ISNULL function like so:

ISNULL(b.bId, 0) bId