Question

Hi i have an sql function which returns a table (set of records)

SELECT * FROM myFunction('213123');

now i have a query which gives me all id’s

SELECT "runnerId" FROM log GROUP BY "runnerId"

how can i make one query which calls the function for each “runnerId” and UNIONs all the results

Answer 1

Use cross apply/outer apply as ta.speot.is said:

create function test_funct (@id int)
returns @retval table(id int not null primary key, data varchar(10)) 
as 
begin

 insert into @retval(id,data) values (@id,'test');
 return ;
end;


select  b.* from 

(
 select 1 as f1
 union
 select 2
)a
cross apply test_funct(a.f1) b -- or outer apply