sql server - How to merge a select statement with a calculated value as new columns? -


this question has answer here:

in sql server code, have select statement

select distinct      a.hirelastname,      a.hirefirstname,      a.hireid,      a.position_id,      a.barnumber,      a.archived,      a.datearchived,      b.position_name newhire  join position b on a.position_id = b.position_id join workperiod c on a.hireid = c.hireid a.archived = 0 , c.inquiryid not null  order a.hireid desc, a.hirelastname, a.hirefirstname

and want add new column it. column not column table, used store float calculation make existing columns.

the number calculated this: @acc a.hireid above select statement.

cast((select count(*) hire_response hireid = @acc , (hireresponse = 0 or hireresponse = 1)) float) /  cast((select count(*) hire_response hireid = @acc) float)

how can this? thanks.

you can use code gbn did on other question sub-query

select distinct      a.hirelastname,      a.hirefirstname,      a.hireid,      a.position_id,      a.barnumber,      a.archived,      a.datearchived,      b.position_name,      d.percentage newhire      inner join position b on a.position_id = b.position_id     inner join workperiod c on a.hireid = c.hireid     left join (select nh.hireid, isnull(1e0 * count(case when hireresponse in (0,1) hr.hireid end) / nullif(count(hr.hireid), 0) , 0) percentage                 newhire nh left join hire_response hr on nh.hireid = hr.hireid                  group  nh.hireid) d                      on a.hireid = d.hireid a.archived = 0 , c.inquiryid not null  order a.hireid desc, a.hirelastname, a.hirefirstname

... add column percentage current query. improved, should give god idea of how can bring results of questions together.


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