Using insert into … select results in a incorrect syntax near select, why?

Question

How can I make a SELECT inside an INSERT operation?

insert into tableX (a_id, b_id) 
VALUES ((SELECT service_id 
         FROM tableY 
         WHERE id = 10, 2))         


        

Answer 1

You're telling the DBMS that you're inserting two values (a_id, b_id) but only selecting one (service_id).