Replacing NULL with 0 in a SQL server query

Question

I have developed a query, and in the results for the first three columns I get NULL. How can I replace it with 0?

  Select c.rund         


        

Answer 1

With coalesce:

coalesce(column_name,0)

Although, where summing when condition then 1, you could just as easily change sum to count - eg:

count(case when c.runstatus = 'Succeeded' then 1 end) as Succeeded,

(Count(null) returns 0, while sum(null) returns null.)