JOIN TABLES IN ONE REPORT

Question

Hi,
I'm trying to join some tables in one report. I was successful with it, until I added one table which has many records for one primary key in the main table. I used Order by and Limit to select only the latest row, but then I got this error: Query cannot be parsed, please check the syntax of your query. (ORA-00907: missing right parenthesis)
The sql is here:
select
t.TICKET_ID "Ticket Id",
t.RECEIVED_DATE "Received Date",
t.QUOTE_NUMBER "Quote Number",
r.REQUEST_NAME "Request Type",
s.STATUS_NAME "Status",
p.PRIORITY_NAME "Priority",
t.NUMBER_OF_SUBLINES "Number Of Sublines",
t.QUOTE_VALUE "Quote Value",
c.CURRENCY_NAME "Currency",
t.QUOTE_START_DATE "Quote Start Date",
t.CUSTOMER_NAME "Customer Name",
t.REQUESTER_EMAIL "Requester",
st.STRIPE_NAME "Stripe",
tm.TEAM_NAME "Team",
a.ANALYST_NAME "Quote Analyst",
(select g.GATE_COMM from QTMT_GATE_COMM g where g.TICKET_ID=t.TICKET_ID order by g.GATE_COMM_ID desc limit 1)GATE_COMM,
ac.ANALYST_COMM "Quote Analyst Comment",
cc.CLOSE_COMM "Closing Comment",
se.SERVICE_NAME "Type Of Service",
ro.REOPEN_NAME "Reopen",
t.ASSIGNED_DATE "Assigned Date",
t.LAST_UPDATED "Last Updated",
t.DATE_COMPLETED "Date Completed",
t.EFFORT "Effort"
from
QTMT_TICKETS t,
QTMT_REQUEST_TYPE r,
QTMT_STATUS s,
QTMT_PRIORITY p,
QTMT_CURRENCY c,
QTMT_STRIPE st,
QTMT_TEAM tm,
QTMT_ANALYST a,
QTMT_ANALYST_COMM ac,
QTMT_CLOSE_COMM cc,
QTMT_SERVICE se,
QTMT_REOPEN ro
where
t.REQUEST_TYPE_ID=r.REQUEST_TYPE_ID and
t.STATUS_ID=s.STATUS_ID and
t.PRIORITY_ID=p.PRIORITY_ID and
t.CURRENCY_ID=c.CURRENCY_ID and
t.STRIPE_ID=st.STRIPE_ID and
t.TEAM_ID=tm.TEAM_ID and
t.ANALYST_ID=a.ANALYST_ID and
t.ANALYST_COMM_ID=ac.ANALYST_COMM_ID and
t.CLOSE_COMM_ID=cc.CLOSE_COMM_ID and
t.SERVICE_ID=se.SERVICE_ID and
t.REOPEN_ID=ro.REOPEN_ID
Could you please let me know what do I have wrong?
Thank you and best regards,
Vladimir

Answer 1

It's a problem with me not being able to run the code to test it. Basically the problem is that the subquery is nested too deeply to be able to see the QTMT_TICKETS table. It is not 'missing' as ApexBine suggests but it is unavailable. The most deeply nested subqueries execute first, and that one is executing before the QTMT_TICKETS table is available to it. Off the top of my head, the easiest thing then would be to create a function to get the GATE_COMM value (I'm guessing at the data types):
FUNCTION gate_comm (p_ticket   NUMBER)
RETURN VARCHAR2
AS
  CURSOR c_gc IS
    SELECT g.GATE_COMM
    FROM   QTMT_GATE_COMM g
    WHERE  g.TICKET_ID = p_ticket
    ORDER BY g.GATE_COMM_ID DESC;
BEGIN
  FOR v_Lp IN c_gc LOOP
    RETURN v_Lp.gate_comm;
  END LOOP;
END;Then you can replace the failing subquery in the SQL with gate_comm(t.TICKET_ID)