Question

The following query is the one I was using previously… but I want to combine these two queries in order to improve the performance

select a, b, c
  from table1
 where d LIKE 'xxx'
   and f like 'yyyy'
 order by b desc;

I’m executing the above query and reading values.

For every value of b from above query again executing the below query in a loop.

select count(*) 
  from table2 where b=? AND js_email_id IN 
(
  select js_email_id 
    from js_initialsignup 
   where UCase(jsaccountstatus) LIKE UCase('live') 
     AND UCase(js_status) LIKEUCase('accepted')
)

How can I combine both queries and get count and values at a time?

Answer 1

select a,b,c,
       (select count(*) 
from table2 where b=a.b AND js_email_id IN 
(
  select js_email_id 
  from js_initialsignup 
  where UCase(jsaccountstatus) LIKE UCase('live') 
    AND UCase(js_status) LIKEUCase('accepted')
)) as cnt

from table1 a