Question

I have a query with a CTE that returns multiple rows, I want to execute a Function for every row returned.
Is it possible, I checked on google, it says about using temp table to populate the result. I just want to confirm

with job_list as (  select JOB_ID,CREATED_DATE from job_table)  ,
app_list as (select APP_ID from job_list jobs, dbo.fnGetApp(jobs.JOB_ID,9))
select * from job_list, app_list 

This is not the exact query, I have simplified for understanding the problem I face.

dbo.fnGetApp is a function that takes two params varchar and int and returns a table of a single column (varchar APP_ID)

Error – The multi-part identifier “jobs.JOB_ID” could not be bound.

I want to run the function for every row returned by the job_list CTE and use the results as a CTE for another query which uses both the CTEs

Thanks
David

Answer 1

Can’t you do it like this:

with job_list as 
(  
   select 
     JOB_ID,
     CREATED_DATE 
   from 
     job_table
),
app_list as 
(
   select 
      APP_ID 
   from 
     job_list AS jobs 
     CROSS APPLY dbo.fnGetApp(jobs.JOB_ID,9) AS something
)
select * from 
job_list, 
app_list