Question

Let us build 2 tables

create table School
(
IdSchool int not null PK,
Name     varchar(10) not null
)

create table Prof
(
IdSchool   int not null,
IdProf     int not null,
name       varchar (10)
PK (IdSchool, IdProf)
)

I would like to build query like this:

IdSchool, Prof.Name*

• prof name should be a list that consist of ALL the profs from the same school.

Now, I know it is not a problem to build a list with a procedure or function, but is there a way to build a query that can return this kind of a result.

P.S. query should return single line, so result table from school left join prof is not a result I want to achieve.

thx.

Answer 1

SELECT distinct Idschool, profs
FROM profs p1
CROSS APPLY
(
select substring((
    SELECT ',' + name 
    FROM profs p2    
    WHERE p1.Idschool = p2.Idschool
    FOR XML PATH('')
    ),2,1000)
    as Profs    
) profs