Left join with condition

Question

Suppose I have these tables

create table bug (
    id int primary key, 
    name varchar(20)
)
create table blocking (
    pk int primary key,
    id int, 
          


        

Answer 1

make sure the inner query only returns one row. You may have to add a top 1 on it if it returns more than one.

select 
t1.id, t1.name,
(select  b.name from #blocking b where b.id=t1.id and b.name='qa bug')
from #bug t1