Question

I have two related tables in SQL Server in a 1 to many relationship (Applicant, Reference).

I want a view that will retrieve all the data from the Applicant table and also add another column to the view that tells me how many related Reference rows there are where the “Complete” column is True.

Answer 1

Something like this using a subquery:

select applicantfield1, applicantfield2, 
  (select count(*) from 
  reference where reference.applicantkey = applicant.applicantkey 
  and reference.complete = 1) AS referencecount
from applicant

Unless the complete field is in the applicant table (not the reference table). If so, it would be more like this:

select applicantfield1, applicantfield2, 
  (select count(*) from 
  reference where 
  reference.applicantkey = applicant.applicantkey) AS referencecount
from applicant
where applicant.complete = 1