Outer join does not not as expected left

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• Left Outer Join does not work why?

  Hello
  
  I have a question I want to return all the id group grp_id table and count and give me a count of all "active" members in the Member table. There are a few members who are not active in the table of members who belong to groups in the grp_id table. I still want a record returned for these grpid, but since there is no active members for these groups, I would like a zero as the mbr_count. An active mbr is the one whose eff_dt is less than the date of the day and whose exp_dt is greater than today's date.
  
  I have listed the query below, which returns active records mbr, but unfortunately does not return a grpid (as in my example of data) is not an active member (grpid: has ""). I have also provided the DDL for both tables as well as some examples of data that gives me the (Incorrect) results, that I posted. I have also posted what I need (the 'Correct' results).
  
  Thanks for any help... (I use PL/SQL)
  
  THE QUERY I USE:
  =============
  SELECT
  G00.grpid,
  Count (M00.grpid) mbr_count
  Of
  g00 grp_id
  LEFT OUTER JOIN
  m00 MBR on
  G00.grpid = m00.grpid
  WHERE
  M00.eff_dt < sysdate
  AND
  M00.exp_dt > sysdate
  GROUP BY
  G00.grpid
  
  It gives me results like:
  
  INCORRECT RESULTS:
  ===============
  GRPID MBR_COUNT
  A 2
  B 2
  C 1
  
  I want to see is:
  
  CORRECT RESULTS
  ===============
  GRPID MBR_COUNT
  A 2
  B 2
  C 1
  D 0
  
  
  Here's the DOF and the sample data:
  
  create table grp_id (grpid varchar (1))
  
  insert into grp_id values ('A')
  insert into grp_id values ('B')
  insert into grp_id values ('C')
  insert into grp_id values (')
  
  Commit
  
  create table mbr (mbr_name varchar (10), varchar (1) grpid, eff_dt date, exp_dt date)
  
  insert into values of mbr ('BRAND', 'A', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY '))
  insert into values of mbr ('BRAND', 'A', to_date (July 1, 2011 ',' DD-MM-YYYY '), to_date (1 January 2012 ',' DD-MM-YYYY '))
  
  insert into values of mbr ('MARTY', 'A', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY '))
  insert into values of mbr ('MARTY', 'A', to_date (July 1, 2011 ',' DD-MM-YYYY '), to_date (1 January 2012 ',' DD-MM-YYYY '))
  
  insert into values of mbr ('FRANK', 'B', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY '))
  insert into values of mbr ('FRANK', 'B', to_date (July 1, 2011 ',' DD-MM-YYYY '), to_date (1 January 2012 ',' DD-MM-YYYY '))
  
  insert into values of mbr ('MARY', 'B', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY '))
  insert into values of mbr ('MARY', 'B', to_date (July 1, 2011 ',' DD-MM-YYYY '), to_date (1 January 2012 ',' DD-MM-YYYY '))
  
  insert into values of mbr ('JOHN', 'C', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY '))
  insert into values of mbr ('JOHN', 'C', to_date (July 1, 2011 ',' DD-MM-YYYY '), to_date (1 January 2012 ',' DD-MM-YYYY '))
  
  insert into values of mbr ("NOAM" 'd', to_date (January 1, 2011 ',' DD-MM-YYYY '), to_date (July 1, 2011 ',' DD-MM-YYYY ') ")

  Thanks for the script, shame on the missing semicolon :)

  Your date restrictions are implemented as "filter predicates" rather than "join predicates.
  that is the difference between a place ANDS extra o in the JOIN clause.

  SQL> SELECT
    2  g00.grpid,
    3  count(m00.grpid) mbr_count
    4  FROM
    5  grp_id g00
    6  LEFT OUTER JOIN
    7  mbr m00 on
    8  g00.grpid = m00.grpid
    9  WHERE
   10  m00.eff_dt < sysdate
   11  AND
   12  m00.exp_dt > sysdate
   13  GROUP BY
   14  g00.grpid
   15  /
  
  G  MBR_COUNT
  - ----------
  A          4
  B          4
  C          2
  
  SQL> SELECT
    2  g00.grpid,
    3  count(m00.grpid) mbr_count
    4  FROM
    5  grp_id g00
    6  LEFT OUTER JOIN
    7  mbr m00 on
    8  g00.grpid = m00.grpid
    9  AND
   10  m00.eff_dt < sysdate
   11  AND
   12  m00.exp_dt > sysdate
   13  GROUP BY
   14  g00.grpid;
  
  G  MBR_COUNT
  - ----------
  D          0
  A          4
  B          4
  C          2
  
  SQL> 
  

• outer join does not give the expected results (missing documents)

  Hello
  I have problem with outer join in OBIEE 10 g.
  
  I'm testing it on the model of simplified database
  
  STAT table with some statistics of TYPEs
  stat_date, id_type, num
  ..
  ..
  26/03/2003, 20: 1
  26/03/2003, 21: 1
  26/03/2003, 23: 1
  26/03/2003, 24, 1
  26/03/2003, 25, 1
  ..
  27/03/2003, 22, 1 <-different date here
  ..
  ..
  
  Table TYPES
  ID_type
  ..
  ..
  20
  21
  22
  23
  24
  25
  ..
  ..
  
  
  Physical model
  STAT >-TYPES
  
  
  AM.
  F1 (only Digital STAT table column (agg. County))
  D1 (STAT_DATE of the STAT table column only)
  D2 (source TYPES)
  
  D1 - inner join - < F1
  D2 - left outer join - < F1
  
  
  I would like to create simple report filtered by date with number of each type.
  I want to get this result
  ID_type County
  ..     ..
  ..     ..
  20 1
  21 1
  22 null
  23 1
  24 1
  25 1
  ..     ..
  ..     ..
  
  
  But I get this
  ID_type County
  ..     ..
  ..     ..
  20 1
  21 1
  23 1
  24 1
  25 1
  ..     ..
  ..     ..
  
  ID_type 22 is missing
  
  
  !!!
  
  I NORMALLY GET RESULT ONLY IF I DELETE RECORD ' 27/03/2003 22' OF MY FACT TABLE.
  
  !!!
  
  
  I have the filter on the date column D1
  STAT_DATE = 26/03/2003 or STAT_DATE is null
  
  
  BI Server running this SQL query
  
  
  Select distinct D1.c1 as c1,
  D1. C2 C2
  Of
  (select count (T17840. NUM) in c1.
  T17867.ID_TYPE C2
  Of
  Left outer join of TYPES T17867
  STAT T17840 on T17840.ID_TYPE = T17867.ID_TYPE
  where (T17840. STAT_DATE in (TO_DATE ('2003-03-26', 'YYYY-MM-DD')) or T17840. STAT_DATE is null)
  T17867.ID_TYPE group
  ) D1
  
  
  Can you give me some advice?
  
  Thank you

  Hi cardel,

  I think that you can achieve your goal if you build a dimension of the array STAT form, you can create a table Alias in the physical layer and then to join the table of facts (external to the left). In this way, I think that you can solve your problem.

  Let me know.

  Kind regards
  Gianluca

• Outer join does not

  Hello
  
  Pls help me my request. I tried the following, but it does not give the expected results.
  
  Tab1
  EmplId, RepDt, Code, Hrs
  1/100,1/2009,199,8
  1/100,1/2009,200,4
  1/100,1/2009,255,3
  200,1/1/2009,200,4
  100.5/1/2009,199,8
  
  
  Tab2
  EmplId, RepDt, Code, Hrs
  1/100,1/2009,200,6
  200,1/1/2009,200,3
  
  I need output like this - 4 rows - need of all the rows from TAB1 when EMPLID, REPDT match TAB2, field values: need at a time when Code is also, when emlid, correspondence of the date, the Code missing so need A hrs, display ZERO as Tab2 hours.
  
  1/100,1/2009,199,8,0 - did not exist is not in tab2, so hrs Tab2 is ZERO
  1/100,1/2009,200,4,6 - Emplid, RepDt, Code match existence in Tab2, Tab1 Hrs 8, 6 Hrs Tab2
  1/100,1/2009,255,3,0 - did not exist is not in Tab2, so Tab2 hrs is equal to ZERO
  200,1/1/2009,200,4,3 - Emplid, Repdt, Code Match existed in Tab2, 4 Hrs of Tab1, Tab2 3 Hrs
  
  We are in 10g, Oracle.
  
  I tried the following
  T1. EmplId = T2.emplid AND T1.repdt = T2.repdt AND T1.code, T2.code = (+) - returns the unique corresponding lines, 2 rows.
  
  Pls help.
  
  Thanks in advance.
  
  Published by: NL 23 February 2009 09:20

  Hello

  See the Boneist first message in this thread:

  select t1.emplid, t1.repdt, t1.code, t1.hrs, nvl(t2.hrs, 0)
  from   tab1 t1,
         tab2 t2
  where  t1.emplid = t2.emplid (+)
  and    t1.repdt = t2.repdt (+)
  and    t1.code = t2.code (+)
  and    (t1.emplid, t1.repdt) in (select emplid, repdt
                                   from   tab2)
  order by repdt, emplid, code;
  

  As Boneist said, this fact corresponds to option (b)
  "(b) do just an outer join, with a condition EXISTS (or IN) in the WHERE clause to find corresponding repdts.
  The

  (+)
  

  an outer join are signs.

• decode in an outer join does not

  Hello
  I have a query which does not work; How to rewrite to make it work?
  Thanks in advance for your suggestions
  
  SELECT tab1.colA
  tab2.colA
  tab2.colB
  OF tab1
  tab2
  WHERE tab1.colA = tab2.colA (+)
  AND tab1.colB = tab2.colB (+)
  AND decode (tab2.colC, tab2.colD, tab2.colC, 'Y') (+) = 'Y '.
  GROUP BY tab1.colA
  tab2.colA
  tab2.colB

  1 post explain plan
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          tab2.colA,
          tab2.colB
    FROM  tab1,
          (
           select  colA,
                   colB
             from  tab2
             where decode(tab2.colC,tab2.colD,tab2.colC,'Y') = 'Y'
          ) tab2
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      AND tab1.colB = tab2.colB(+)
      GROUP BY tab1.colA,
            tab2.colA,
            tab2.colB
  /
  

  SY.

• ORA-01719: outer join operator (+) not allowed in operand of GOLD or IN

  I'm migrating a stored procedure (package) in Oracle 11 g.  The SQL has an outer join, combined with a "GOLD":

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• Outer join is not retrieve the correct values

  Hi, I have a problem to recover some data from this query with outer join:
  
  SELECT count (incident_id), range_2 of
  (by selecting range_2 in apps.aaa_table),
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  (select * from xxntt_custom_hierarchy)
  Union
  Select eidos null null omada, null product_categiory, stuff, null, null, inv_item_descripiption, null, tautopoihsh, inv_item_id double null null symptom
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  and c.INV_ITEM_ID (+) = b.INVENTORY_ITEM_ID
  and c.CATEGORY_ID (+) = b.CATEGORY_ID
  and c.SYMPTOM (+) = b.IPTV_SUMPTOM
  and c.OMADA = 'A '.
  Range_2 group
  
  This request is composed by 3 dataset: a, b and c
  
  the data group is a fixed list of values (LOV): range_2 = "0-2h','2-4h','4-6h','6-8h','8-10h','10-12h','12-14h','14-16h','16-18h','18-20h".
  
  the dataset b retrieve a list of the incident_id and their related ranges (calculated with the XXN2B_RESOLUTION_RANGE function)
  
  the c dataset is just a filter on the b of dataset to retrieve only the incident_id who belong to the group "A".
  
  I want to reach is this: always see the full list of values 'range_2', even if I do not have incident_id with a particular range.
  That's why I put the condition: a.range_2 = b.ranges (+)
  
  .. .but it does not work... I don't see the incident_id which have the scope inside the LOV... instead I want to see also if there is incident_id without a range to the LOV.
  
  Range_2 grouping, I see:
  
  ! http://www.freeimagehosting.NET/uploads/d900035c11.jpg!
  
  
  Instead of
  
  ! http://www.freeimagehosting.NET/uploads/99a75dfca4.jpg!
  
  Can someone help me understand where is the error?
  
  Thanks in advance
  
  Alex

  Hi Alex,

  I think you need to externally join the final predicate, thus:

  ..
  and c.OMADA(+) = 'A'
  ..
  

  Concerning
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• Join does not work for NULL values on the join condition

  Hello
  
  I have the following problem.
  
  SQL > select * from a;
  
  X Y
  ---------- --------------------
  1
  2
  3
  4
  
  SQL > select * from b;
  
  A:
  ---------- --------------------
  1
  2
  
  
  
  SQL > select f.x, f.y, s.b in f, s b
  2 where f.x = s.b (+);
  X Y B
  ---------- -------------------- ----------
  1 1
  2 2
  4
  3
  
  
  
  
  SQL > select f.x, f.y, s.b in f, s b
  2 where f.x = s.b (+)
  3 and f.y = s.y;
  
  no selected line
  
  
  So now if I include a join condition more where null = null situation arises, it's working now.
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  What is the solution. This is an expected behavior.
  
  
  Thank you
  Pramod Garre

  Pramod salvation,

  Another way to use the outer join is,

  Select f.x, f.y, s.b
  of a, f, s b
  where f.x = s.b (+)
  and nvl(f.y,0) = nvl (s.y (+), 0);

  Hope this will help you.

  Thank you
  Amit

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