How to use the rownum to get only 5 records?

Question

Hello Folks,
I have this queury which pulls in the CLient,EventStatus along with the Events for each user. I just want to condense the data so that each user has not more than 5 events.
select c.client_code "Client Code",
       c.client_name "Client Name",
       e.event_id "Event ID",             -- there can be 5 or more events per user  
  e.event_status_code "Event Status",
       al.end_user_id "User ID",
       eu.user_real_name "User Name"  -- user    
al.activity_date "Activity Date",
       al.activity_log_type_code "Activity Type",
       al.activity_party "Activity Party",
       al.activity_subject "Activity Subject",
       al.activity_source "Activity Source",
       al.activity_text "Activity Text",
       e.created_date "Event Created Date"
  from budget b, activity_log al, client c, event e, end_user eu, profile_lookup pl, event_case ec
where b.event_case_id = al.event_case_id
   and e.event_id = ec.event_id
   and al.event_case_id = ec.event_case_id
   and e.client_id = c.client_id
   and al.end_user_id = eu.end_user_id
   and eu.profile_id = pl.profile_id
   and al.activity_source <> 'SYS'
   and al.activity_log_type_code not in ('MAIL PRINT')
   and (
   (al.activity_log_type_code <> 'PROJECTION')
   or
   (al.activity_log_type_code = 'PROJECTION'and b.budget_status <> 'APPROVED')
   and pl.profile_name like 'NEGOTIATOR%'
   and al.activity_date >= to_date('20101123 000000', 'YYYYMMDD HH24MISS')
   and al.activity_date <= to_date('20101123 235959', 'YYYYMMDD HH24MISS')
sample data:
647     IL-FEP     BLUE CROSS BLUE SHIELD OF ILLINOIS     219678     OPEN     867     AARON HILTON     11/23/2010 2:12:44 PM     FAX SENT     SAUL FERRIS     Confirmation of Settlement Amo     MAIL     "Fax of Confirmation of Settlement Amount sent to SAUL FERRIS FAILED.
Details :
"     7/11/2009 7:26:45 PMEdited by: user11961230 on Nov 24, 2010 8:11 AM
Edited by: user11961230 on Nov 24, 2010 8:11 AM
Edited by: user11961230 on Nov 24, 2010 8:12 AM
Edited by: user11961230 on Nov 24, 2010 8:18 AM
Edited by: user11961230 on Nov 24, 2010 8:19 AM

Answer 1

user11961230 wrote:
ORA-00923: FROM Keyword not found where expected
Issue is your original query had not equal condition as &#60;&#62; in two places Since &#60;&#62; has special meaning (empty tag) in HTML, they disappeared. I fixed it in one spot with using != instead but missed the othe. Anyway:
select  "Client Code",
        "Client Name",
        "Event ID",
        "Event Status",
        "User ID",
        "User Name"    
        "Activity Date",
        "Activity Type",
        "Activity Party",
        "Activity Subject",
        "Activity Source",
        "Activity Text",
        "Event Created Date"
  from  (
         select c.client_code "Client Code",
                c.client_name "Client Name",
                e.event_id "Event ID", 
                e.event_status_code "Event Status",
                al.end_user_id "User ID",
                eu.user_real_name "User Name"    
                al.activity_date "Activity Date",
                al.activity_log_type_code "Activity Type",
                al.activity_party "Activity Party",
                al.activity_subject "Activity Subject",
                al.activity_source "Activity Source",
                al.activity_text "Activity Text",
                e.created_date "Event Created Date",
                row_number() over(partition by al.end_user_id order by e.event_id) rn
          from  budget b,
                activity_log al,
                client c,
                event e,
                end_user eu,
                profile_lookup pl,
                event_case ec
          where b.event_case_id = al.event_case_id
            and e.event_id = ec.event_id
            and al.event_case_id = ec.event_case_id
            and e.client_id = c.client_id
            and al.end_user_id = eu.end_user_id
            and eu.profile_id = pl.profile_id
            and al.activity_source != 'SYS'
            and al.activity_log_type_code not in ('MAIL PRINT')
            and (
                    (al.activity_log_type_code  'PROJECTION')
                 or
                    (al.activity_log_type_code = 'PROJECTION'and b.budget_status != 'APPROVED')
            and pl.profile_name like 'NEGOTIATOR%'
            and al.activity_date >= to_date('20101123 000000', 'YYYYMMDD HH24MISS')
            and al.activity_date <= to_date('20101123 235959', 'YYYYMMDD HH24MISS')
  where rn <= 5
/ SY.