Join the query/right /.

Similar Questions

• Join the query - confused behavior

  Hello.. I need to make a join on four tables and select one data tables. The query is as below,
  
  SELECT THE VIRTUAL MACHINE. SEGMENT, VM.CA, VM. PR, VM. BP, VM. TERM_ID, VM. TL v_mlr_cable VM, v_neicode NEI, v_mlr MLR, v_fibre_ntwk_type FIBER WHERE MLR.master_key = 62 AND MLR.dslam_tid = NEI.id AND NEI.type = 'OLT' AND MLR.ntwk_type = FIBRE.id AND MLR.master_key = VM.master_key;
  
  This query works very well. I want to change the query to have an OR condition by combining certain conditions in the WHERE clause as below,
  
  SELECT THE VIRTUAL MACHINE. SEGMENT, VM.CA, VM. PR, VM. BP, VM. TERM_ID, VM. TL v_mlr_cable VM, v_neicode NEI, v_mlr MLR, v_fibre_ntwk_type FIBER WHERE MLR.master_key = 62 AND ((MLR.dslam_tid = NEI.id ET NEI.type = 'OLT') or MLR.ntwk_type = FIBRE.id) AND MLR.master_key = VM.master_key;
  
  This translates into several duplicates of the correct result lines (about 93 272 rows).
  I suspect this is a unwanted Cartesian product.
  I am limited to use a 'different' because my application performs custom, so 'distinct' query analysis is out of the option.
  
  I struggle to understand the result of this query. You can help... ! Thanks in advance.
  
  My database: Oracle Enterprise Edition 10.2.0.2.0
  
  Published by: vanessa on June 9, 2011 12:49 AM

  Hello

  Can hide you the SELECT DISTINCT in a subquery, like this:

  SELECT  *
  FROM    (
              SELECT DISTINCT  VM.SEGMENT, ...
          );
  

  or in a view?

  If this is not the case, use GROUP BY. The GROUP BY clause contains all the columns in the SELECT clause.

  You could also re - write the query to use EXISTS or IN, instead of a jon.
  For example:

  SELECT      SEGMENT
  ,     CA
  ,     PR
  ,     BP
  ,     TERM_ID
  ,     TL
  FROM     v_mlr_cable     vm
  WHERE     master_key     = 62
  AND     EXISTS (
            SELECT  0
            FROM     v_neicode       NEI
            ,     v_mlr            MLR
            ,      v_fibre_ntwk_type FIBRE
            WHERE     MLR.master_key      = vm.master_key
            AND      (     (     MLR.dslam_tid      = NEI.id
                      AND      NEI.type      = 'OLT'
                      )
                 OR      MLR.ntwk_type      = FIBRE.id
                 )
              )
  ;
  

  Do you think it is easier to read and understand the code formatted, as the query above, or unformatted, as what you posted?
  Who do you think will encourage people to read your question and provide accurate responses?
  Never write, not to mention NPA, not formatted.

  I hope that answers your question.
  If not, post a small example of data (CREATE TABLE and INSERT, only relevant columns instructions) of all the tables and the results desired from these data.
  Explain how you get these results from these data.
  Always tell what version of Oracle you are using.

• Join the query in a dynamic list of values query

  I have a join query in a dynamic list of values query. The value does not return a value of text, but rather the value of the ID.
  
  Is it possible to use a join query in a dynamic list of values query?
  
  For example... in the query below, I expect to see ename in the drop-down list, but I see class_emp_id.
  
  Select b.ename d, a.class_emp_id r
  of class_emp a, b of the emp
  where a.class_cat_id =: CURR_CLASS_CAT_ID
  and a.emp_id = b.emp_id
  order by 1
  
  Thank you
  Reid

  Hey Reid,

  The structure of the pairings/value of the item is incorrect - it should be: item1, item2, etc.: value1, value2, etc, so:

  ' f ? p = & APP_ID.: 50: & SESSION. ": P50_LP_ID, P50_LP_NAME, CURR_CLASS_CAT_ID: #LP_ID #, #LP_NAME #, #CLASS_CAT_ID #"

  I guess that CURR_CLASS_CAT_ID does not use the prefix P50_?

  Andy

• [Help] Join the query from 3 tables

  Hi, I'm new to database. I have a question about joining 3 tables, forgive me for my bad English.
  
  My paintings look like this
  
  Table 1: person (id, firstname, lastname)
  Table 2: AssignPersonAddress (id, personid, addressid, type)
  Table 3: address (id, phone, street, etc.)
  
  I need AssignPersonAddress table, because in my data structure, a person may have more than 1 address and address type must be registered (for example: private, work)
  
  
  I want to do a select query to the State any person with his private phone and work phone, like this.
  NOBODY | PRIVATE | WORK
  
  
  
  Right now my query looks like this
  

  select p.name , a1.tel AS Private, a2.tel AS Work
  from person p, 
  addresse a1 , 
  AssignPersonAddress apd1, 
  AssignPersonAddress  apd2, 
  addresse a2
  
  where p.id  = apd1.person (+)
  and apd1.adresse  = a1.id 
  and apd1.art = 'Private' 
  and p.objectid = apd2.person (+)
  and apd2.adresse  = a2.id 
  and apd2.art = 'Work'

  the problem is that I only get the person who has a private address and the job. But what I want is all anyone no matter if the person has only 1 or 2 address.
  
  As you can see I put the left outer join in where condition, but I always get the wrong result.
  
  
  THX in advance
  
  
  Danny
  
  Published by: raitodn on October 1st, 2009 03:51
  
  Published by: raitodn on October 1st, 2009 04:12
  

• Join the query

  Hello
  
  I have two tables Employee and EmployeeDetail
  
  Employee table of data as follows:
  EmployeeID
  1
  2
  
  
  EmployeeDetail table of data as follows:
  EmployeeDetailID FkEmployeeID EmployeeName
  1 1 a
  2 2 b
  3 2 b1
  
  
  Note: that in the table EmployeeDetail, detail of the employee was inserted not updated therefore for EmployeeID: exiists there are 2 previous entry in the EmployeeDetail table.
  
  I want to take the latest recordings as
  EmployeeID EmployeeName
  1 a
  2 b1
  
  
  
  I tried following query
  Select Employee.EmployeeID, EmployeeDetail.EmployeeName of the employee
  Left Join EmployeeDetail
  where Employee.EmployeeID = EmployeeDetail.FkEmployeeID
  
  But he has a problem... I do not know how to choose the last disc

  last disk would probably be more EmployeeDetailID, base on this point, as an easy way:

  Select *
  From   Employee e, EmployeeDetail ed
  where e.employee_id = ed.employee_id
      And ed.EmployeeDetailID = (select Max(EmployeeDetailID ) from EmployeeDetail ed2 where ed2.employee_id = e.employee_id)
  

  best solution would be a rank of the analytic function on the partition by but it is more understandable.

  Published by: Mustafa KALAYCI on 05.Eki.2010 09:44

• The join SQL query help

  I'm just having a bit of troubel get a correct join query - I thought it was an Inner Join, but I don't get the results I expect.

  My table structure is:

  Table: lodges

  LodgeID (PK)

  Lodge

  etc.

  Table: implemented application

  NominationID (PK)

  Category

  LodgeID

  Year

  So I try to use this structure to replicate this page:

  http://www.safariawards.com/nominees12/

  That is to say a list of boxes for each category, they are appointed on.

  The query I've tried looks like this:

  SELECT appointments. LodgeID, lodges. Lodge, applications. NominationID, applications. Lodges INNER JOIN applications category IT lodges. LodgeID = nominated. NominationID WHERE category = "Best property of Safari in southern Africa" ORDER BY Lodge

  But this product:

  http://www.safariawards.com/nominees12/southernafrica.php

  Its the right number of results, but not the list on the right of the boxes - for example British Airwways is not LodgeID 786

  If anyone could help with the SQL right for what would be well appreciated.

  That you join on the wrong column. Try this:

  SELECT appointments. LodgeID, lodges. Lodge, applications. NominationID, applications. Lodges INNER JOIN applications category IT lodges. LodgeID = nominated. LodgeID WHERE category = "Best property of Safari in southern Africa" ORDER BY Lodge

• How to specify an outer join in the query designer

  I quickly built a large query with the query designer, and it works very well, but does not produce 9 disks on 2200 - so I need to change to an outer join.
  
  My problem is that I can't find a way to specify an outer join. I tried to change the query, query builder formed, but it won't let me.
  
  I know that I can capture the query, edit and run it in sql developer and that works fine, but I want to use the Query Builder as it is the fastest way I know to quickly add and remove items - my users don't know exactly what that it to include.
  
  I know it's kind of a trivial question, but I searched the forum, manual, the web and no luck
  
  Thanks for any help you can give
  
  Glenn

  Hi Glenn,.

  When you use the query designer to create the sql statement, you must click on the empty box to the right of the fields in each table to create the join. When you are finished, you should see a line drawn between the two tables. Click on this line, and a small window appears allowing you to select inner outer or right outer joins, left.

  When the report was created, however, you must change the statement. For example, if you use the query designer to join DEPT at EMP based on the DEPTNO field on the two tables, you get:

  select      "DEPT"."DEPTNO" as "DEPTNO",
        "DEPT"."DNAME" as "DNAME",
        "DEPT"."LOC" as "LOC",
        "EMP"."EMPNO" as "EMPNO",
        "EMP"."ENAME" as "ENAME",
        "EMP"."JOB" as "JOB",
        "EMP"."MGR" as "MGR",
        "EMP"."HIREDATE" as "HIREDATE"
   from      "EMP" "EMP",
        "DEPT" "DEPT"
   where   "DEPT"."DEPTNO"="EMP"."DEPTNO"
  

  This is to change:

  select      "DEPT"."DEPTNO" as "DEPTNO",
        "DEPT"."DNAME" as "DNAME",
        "DEPT"."LOC" as "LOC",
        "EMP"."EMPNO" as "EMPNO",
        "EMP"."ENAME" as "ENAME",
        "EMP"."JOB" as "JOB",
        "EMP"."MGR" as "MGR",
        "EMP"."HIREDATE" as "HIREDATE"
   from      "EMP" "EMP"
        LEFT OUTER JOIN "DEPT" "DEPT" ON "DEPT"."DEPTNO"="EMP"."DEPTNO"
  

  Andy

• Motorcycle deny non-American owners the right to join the PNM

  Like other owners of non-us I HAV been denied the right to join the feedback of Motorola (MFN) network.

  This confirms the thought racist and discriminating motorcycle against the owners other than the United States.

  
  

• Tuning for sql join key table no consumer of the heavy use of the query processor

  Obligation comes to tunne prod of the query in
  

  high use of the query processor

  sql_id: fp79wb32h7a6t

  Module: AHC, P_PatientDQ()

  Cost: 7

  Elapsed time: hung

  Status: Hung, 35,253,460 day at 30 minute intervals

  -Create table

  create table ahc. PATIENTVISITS

  (

  ahcid NUMBER,

  visitId NUMBER,

  visitstatus NVARCHAR2 (100),

  visitdate DATE,

  visitintime DATE,

  visitouttime DATE

  )

  -Create/recreate the index

  create indexes ahc. F1_PATIENTVISIT_AHCID on ahc. PATIENTVISITS (AHCID, VISITID);

  create indexes ahc. VISITDATE_IDX on ahc. PATIENTVISITS (TRUNC (VISITDATE));

  First total number of table

  Select count (1) of

  Pvs AHC.patientvisits

  -Save County 1387485

  create table ahc. PATIENTDEPENDENTVISITS

  (

  ahcid NUMBER (19) not null,

  IDPack NUMBER (10) not null,

  visitId NUMBER (19) not null,

  dependentvisitid NUMBER (19) not null,

  isdiabetic NUMBER (2)

  )

  -Create/recreate the index

  create indexes ahc. K1_PATIENTDEPENDENT_AHCID on ahc. PATIENTDEPENDENTVISITS (AHCID);

  Total number of second table

  Select count (1) of

  AHC.patientdependentvisits POS

  -Save County 774599

  Original request:

  SELECT count (*)

  ACH. PVS PATIENTVISITS

  WHERE PVS. VISITID IN (SELECT POS. DEPENDENTVISITID

  ACH. PATIENTDEPENDENTVISITS POS

  WHERE POS. AHCID = 37

  AND POS. VISITID = 218

  AND POS. ISDIABETIC = 0)

  AND SUPERIOR (PVS. VISITSTATUS) = 'PENDING'

  AND PVS. AHCID = 37

  Count (1)

  -----------

  1

  PL/sql Developer explain plan for the original query

  Owner of description Objects_name cost cardin bytes cpucost cost of e/s

  SELECT STATEMENT, GOAL = ALL_ROWS			7	1	41	63669	7
  AGGREGATION OF TRI				1	41
  SEMI OF THE NESTED LOOPS			7	1	41	63669	7
  TABLE ACCESS BY INDEX ROWID	AHC	PATIENTVISITS	4	1	25	33295	4
  INDEX RANGE SCAN	AHC	F1_PATIENTVISIT_AHCID	3	9		23164	3
  TABLE ACCESS BY INDEX ROWID	AHC	PATIENTDEPENDENTVISITS	3	1	16	30375	3
  INDEX RANGE SCAN	AHC	K1_PATIENTDEPENDENT_AHCID	2	14		18093	2

  After editing the query

  SELECT / * + FIRST_ROWS * / COUNT (1)

  ACH. PVS PATIENTVISITS

  JOIN THE AHC. PATIENTDEPENDENTVISITS POS ON PVS. VISITID = POS. DEPENDENTVISITID

  WHERE PVS. AHCID = POS. AHCID

  AND POS. AHCID = 37

  AND POS. VISITID = 218

  AND POS. ISDIABETIC = 0

  AND SUPERIOR (PVS. VISITSTATUS) = 'PENDING'

  Count (1)

  -----------

  1

  PL/sql Developer explain plan for change request

  Owner of description Objects_name cost cardin bytes cpucost cost of e/s

  SELECT STATEMENT, TARGET = TIP: FIRST_ROWS			7	1	41	59257	7
  AGGREGATION OF TRI				1	41
  NESTED LOOPS
  NESTED LOOPS			7	1	41	59257	7
  TABLE ACCESS BY INDEX ROWID	AHC	PATIENTDEPENDENTVISITS	4	1	16	36646	4
  INDEX RANGE SCAN	AHC	K1_PATIENTDEPENDENT_AHCID	3	14		24364	3
  INDEX RANGE SCAN	AHC	F1_PATIENTVISIT_AHCID	2	1		15293	2
  TABLE ACCESS BY INDEX ROWID	AHC	PATIENTVISITS	3	1	25	22611	3

  here after I changed the query no display cost = 7 io wait = improvement also 7 can someone please help these

  How to adjust or rewrite lots of join not keys to multiple records on table table

  Thank you

  VSM

  you have not answered my question. Are you really calling it 35 million times in 30 minutes?

  If so, why?

• Performance issue with the query when join OKS and tables of the IB

  Hello

  I'm developing an integration for the automation of RMA through repair. The type of repair order is based on the details of the guarantee. This check must be made for each record.

  Request for detailed below, I wrote, but it of a long way and slows down my program. Without this validation, it works perfectly.

  The problem is the join of tables with OKS IB, he kills performance. I also try to my side,

  any suggestion or help is appreciated. Here's the query in the program:

  SELECT DISTINCT (TYPE |) '-' || service | '-' || status)

  IN v_war_details

  FROM (SELECT TO_NUMBER (linesb.line_number) line,

  DECODE

  (fnd_profile. VALUE

  ('OKS_LINE_MIRR_NAME_OR_DESC'),

  'DISPLAY_NAME', sysitems.concatenated_segments,

  "DISPLAY_DESC", sysitems.description

  ) service.

  linestyletl.NAME TYPE,

  status of ststl.meaning,

  start_date linesb.start_date,

  linesb.end_date end_date,

  oks_misc_util_web.duration_period

  (linesb.start_date,

  linesb.end_date

  ) DURATION OF,.

  TimeUnit.unit_of_measure_tl period

  Of okc_k_lines_b linesb,.

  okc_k_lines_tl linestl,

  okc_line_styles_b linestyleb,

  okc_line_styles_tl linestyletl,

  okc_k_headers_all_b hdr,

  oks_k_lines_b slines,

  okc_k_items kitems,

  mtl_system_items_b1_kfv sysitems,

  okc_statuses_b stsb,

  okc_statuses_tl ststl,

  mtl_units_of_measure_tl timeunit,

  okc_lookups_v rentype,

  Glu mtl_units_of_measure_tl

  WHERE linesb.cle_id IS NULL

  AND linesb.ID = linestl.ID

  AND linestl. LANGUAGE = USERENV ("LANG")

  AND linesb.lse_id = linestyleb.ID

  AND linesb.lse_id (1, 12, 14, 19, 46)

  AND linestyleb.ID = linestyletl.ID

  AND linestyletl. LANGUAGE = USERENV ("LANG")

  AND linesb.chr_id = hdr.ID

  AND linesb.ID = slines.cle_id

  AND linesb.ID = kitems.cle_id

  AND kitems.object1_id1 =

  SysItems.inventory_item_id

  AND kitems.object1_id2 =

  SysItems.organization_id

  AND kitems.uom_code = uom.uom_code (+)

  AND unit of measure. LANGUAGE (+) = USERENV ("LANG")

  AND linesb.sts_code = stsb.code

  AND stsb.code = ststl.code

  AND ststl. LANGUAGE = USERENV ("LANG")

  AND timeunit.uom_code =

  oks_misc_util_web.duration_unit

  (linesb.start_date,

  linesb.end_date

  )

  AND timeunit. LANGUAGE = USERENV ("LANG")

  AND linesb.line_renewal_type_code = rentype.lookup_code (+)

  AND rentype.lookup_type (+) =

  'OKC_LINE_RENEWAL_TYPE '.

  AND (IN) hdr.ID

  SELECT kh.ID

  Of okc_k_headers_all_b kh.

  okc_k_lines_b kl,

  Ki okc_k_items,

  okc_line_styles_v ks,

  csi_item_instances c,

  mtl_system_items_b I have

  WHERE kh.org_id = p_org_id

  AND c.instance_id = p_instance_id

  AND c.serial_number = p_serial_num

  AND i.inventory_item_id =

  p_inventory_item_id

  AND kh.contract_number_modifier IS NULL

  -can be filled

  AND kh.ID = kl.dnz_chr_id

  AND kh.ID = ki.dnz_chr_id

  AND kl.ID = ki.cle_id

  AND kl.lse_id = ks.ID

  AND IN ki.jtot_object1_code

  ("OKX_CUSTPROD")

  AND c.last_vld_organization_id =

  i.organization_id

  AND TO_NUMBER (ki.object1_id1) =

  c.INSTANCE_ID

  AND c.inventory_item_id =

  i.inventory_item_id))

  Service = 'GUARANTEE '.

  AND TRUNC (SYSDATE) BETWEEN start_date AND end_date;

  Not sure where it would be so I put it in the section SQL/PLSQL.

  Kind regards

  Prashant

  Found the solution

  AND TO_NUMBER (ki.object1_id1) = c.instance_id

  replaced by to_char (c.instance_id) = ki.object1_id1 AND

• Internal XML to the query with join

  I have a CF page that reads an XML file in a query using < cffile > XMLParse and QueryAddrow.

  I then do a QoQ on the result and voila! I have my page.  I hide the query for 8 hours and the XML file is only reread this cache expires.  It works well.

  My problem now is that the file contains data from three tables of database instead of one, so I need to make an inner join on the tables.  But I can't do a t/t with an inner join.

  Does anyone know a way for me to do this?

  Oh, didn't know that.  How about interweaving of QofQ?  Join Query1 and Query2 requests in a new query, then join for 3 statement?

• How do the query select outer join to a report of the APEX

  Hi all
  
  I'm Ann.
  
  I have a select statement that is used to calculate statistics for a month (October 2012 in this example)
  Select ph.phase_number
  sum ((case
  WHEN ph.date_finished IS NULL or ph.date_finished > last_day (TO_DATE (' ' Oct 2012 ', ' MY YYYY' "))
  THEN last_day (TO_DATE (' ' Oct 2012 ', ' MY YYYY' "))
  Of OTHER ph.date_finished
  END)
  (-ph.date_started + 1) / count (def.def_id) as avg_days
  Ph phase_membership
  inner join court_engagement this on ph.mpm_eng_id = ce.engagement_id
  join in-house defendant def on ce.defendant_id = def.def_id
  where def.active = 1
  and ph.date_started < = last_day (TO_DATE (' ' Oct 2012 ', ' MY YYYY' "))
  and ph.active = 1
  and UPPER (ce.court_name) LIKE '% '.
  Rollup Group (phase_number)
  ;
  
  The result is as below
  Phase_Number AVG_DAYS
  Phase One 8.6666666666666667
  Phase two 14.6
  Phase three 12
  11.4615365
  
  I have another list of selection mainly the list of months between two date value.
  Select to_char (which_month, 'LUN YYYY') as display_month
  de)
  Select add_months (to_date (' ' August 2012 ', ' MY YYYY' "), rownum-1) which_month
  of object
  where
  rownum < = months_between (to_date (' ' Oct 2012 ', ' MY YYYY' "), add_months (to_date (' ' August 2012", "MY YYYY"), - 1))
  order of which_month)
  
  The query result is as below
  
  DISPLAY_MONTH
  
  AUGUST 2012
  SEP 2012
  OCT 2012
  
  Is it possible I can join these two select statement above to generate a comparable result:
  
  Days of month Phase number Avg
  August 2012 Phase One 8.666
  Sep 2012 Phase One 7.66
  Oct 2012 Phase One 5,66
  August 2012 Phase two 8.666
  Sep 2012 Phase two 7.66
  Oct 2012 Phase two 5,66
  August 2012 Phase three 8.666
  Sep 2012 Phase three 7.66
  Oct 2012 Phase three 5,66
  
  Or
  Days of month Phase number Avg
  August 2012 Phase One 8.666
  August 2012 Phase two 7.66
  August 2012 Phase three 5,66
  Sep 2012 Phase One 8.666
  Sep 2012 Phase two 7.66
  Sep 2012 Phase three 5,66
  Oct 2012 Phase One 8.666
  Oct 2012 Phase two 7.66
  Oct 2012 Phase three 5,66
  
  And it can be controlled by Phase number or month.
  My other colleague suggested I should use a left outer join, but after having tried many ways, I'm still stuck.
  
  I tried select is
  Select a.display_month, b.* in)
  Select to_char (which_month, 'LUN YYYY') as display_month
  de)
  Select add_months (to_date (' ' August 2012 ', ' MY YYYY' "), rownum-1) which_month
  of object
  where
  rownum < = months_between (to_date (' ' Oct 2012 ', ' MY YYYY' "), add_months (to_date (' ' August 2012", "MY YYYY"), - 1))
  order which_month)) a left outer join
  
  (Select to_char (ph.date_finished, 'MY YYYY') as join_month, ph.phase_number)
  sum ((case
  WHEN ph.date_finished IS NULL or ph.date_finished > last_day (TO_DATE (a.display_month, 'MY YYYY'))
  THEN last_day (TO_DATE (a.display_month, 'MY YYYY'))
  Of OTHER ph.date_finished
  END)
  (-ph.date_started + 1) / count (def.def_id) as avg_days
  Ph phase_membership
  inner join court_engagement this on ph.mpm_eng_id = ce.engagement_id
  join in-house defendant def on ce.defendant_id = def.def_id
  where def.active = 1
  and ph.date_started < = last_day (TO_DATE (a.display_month, 'MY YYYY'))
  and ph.active = 1
  and UPPER (ce.court_name) LIKE '% '.
  To_char (ph.date_finished, 'MY YYYY'), group (phase_number) rollup) b
  On a.display_month = b.join_month
  
  but then I get an error
  SQL error: ORA-00904: "A." "" DISPLAY_MONTH ": invalid identifier
  
  I need to view a report on the APEX with option for people to download at least format CSV.
  Already 1 inteactive report in the page, so I don't think adds another interactive report without using the iframe trick.
  
  If any of you have any ideas, please help.
  
  Thank you very much.
  
  Ann

  Hello Ann,.

  Frank has done a very good job. I am also impressed.

  Is in regard to your correction to his question, the problem is on this replacement you did

  last_day(TO_DATE(am.which_month,'MON YYYY'))
  

  AM.which_month is already a date type, and you don't need to convert it to this day.
  Here is the correct way:

  last_day(am.which_month)
  

  There are also sometimes with the data you've posted have no line for this month. So I also added a function NVL to display 0 under avg_days for these cases.

  Here is my corrected query:

  DEFINE startmonth = "Aug 2012";
  DEFINE endmonth   = "Oct 2012";
  WITH  all_months  AS
  (
     SELECT ADD_MONTHS(to_date('&startmonth','MON YYYY'), ROWNUM-1) AS which_month
     ,      ADD_MONTHS(to_date('&startmonth','MON YYYY'), ROWNUM  ) AS next_month
     from all_objects
     where
     rownum <= months_between(to_date('&endmonth','MON YYYY'), add_months(to_date('&startmonth','MON YYYY'), -1))
  )
  SELECT TO_CHAR (am.which_month, 'Mon YYYY')  AS month
       , ph.phase_number
       , NVL(sum ( (CASE
                   WHEN ph.date_finished IS NULL OR ph.date_finished > last_day(am.which_month)
                   THEN last_day(am.which_month)
                   ELSE ph.date_finished
                END
               ) - ph.date_started + 1
             ) / count(def.def_id), 0) as avg_days
    FROM all_months am
         LEFT OUTER JOIN  a_phase_membership  ph  PARTITION BY (ph.phase_number)
            ON  am.which_month <= ph.date_started
            AND am.next_month  >  ph.date_started
            AND ph.date_started <= last_day(am.which_month)  -- May not be needed
            AND ph.active = 1
         LEFT OUTER JOIN  a_engagement  ce
            ON  ph.mpm_eng_id = ce.engagement_id
            AND ce.court_name IS NOT NULL  -- or something involving LIKE
         LEFT OUTER join  a_defendant     def
            ON  ce.defendant_id = def.def_id
            AND def.active = 1
   GROUP BY ROLLUP(phase_number, am.which_month)
   ORDER BY  am.which_month
          ,  ph.phase_number
  ;
  
  The output is:
  MONTH    PHASE_NUMBER           AVG_DAYS
  -------- -------------------- ----------
  Aug 2012 PHASE ONE                     0
  Aug 2012 PHASE THREE                   0
  Aug 2012 PHASE TWO                     0
  Sep 2012 PHASE ONE                    12
  Sep 2012 PHASE THREE                   1
  Sep 2012 PHASE TWO                     9
  Oct 2012 PHASE ONE                     8
  Oct 2012 PHASE THREE                   0
  Oct 2012 PHASE TWO                    14
           PHASE ONE                    11
           PHASE THREE                   1
           PHASE TWO                  11.5
                                9.71428571
  

  I don't know if that's really what you want. In the case check it and let me know.

  Kind regards.
  Al

• Rewrite the query with joins, and group by

  Hello
  
  It's an interview question.
  
  Table names: bookshelf_checkout
  virtual library
  
  And the join condition between these two tables is title
  
  We need to rewrite under request without using the join condition and group by clause?
  
  

  SELECT b.title,max(bc.returned_date - bc.checkout_date) "Most Days Out"
             FROM bookshelf_checkout bc,bookshelf b
             WHERE bc.title(+)=b.title
             GROUP BY b.title;

  When I was in College, I read most of SELECT statements can be replaced by operations base SQL (DEFINE the OPERATORS). Now, I am rewriting the query with SET operators, but not able to get the exact result.
  
  Kindly help me on this.
  
  Thank you
  Suri

  Something like that?

    1  WITH books AS (
    2  SELECT 'title 1' title FROM dual UNION ALL
    3  SELECT 'title 2' FROM dual UNION ALL
    4  SELECT 'title 3' FROM dual ),
    5  bookshelf AS (
    6  SELECT 'title 1' title, DATE '2012-05-01' checkout_date, DATE '2012-05-15' returned_date FROM dual UNION ALL
    7  SELECT 'title 1' title, DATE '2012-05-16' checkout_date, DATE '2012-05-20' returned_date FROM dual UNION ALL
    8  SELECT 'title 2' title, DATE '2012-04-01' checkout_date, DATE '2012-05-15' returned_date FROM dual )
    9  SELECT bs.title, MAX(bs.returned_date - bs.checkout_date) OVER (PARTITION BY title) FROM bookshelf bs
   10  UNION
   11  (SELECT b.title, NULL FROM books b
   12  MINUS
   13* SELECT bs.title, NULL FROM bookshelf bs)
  SQL> /
  
  TITLE   MAX(BS.RETURNED_DATE-BS.CHECKOUT_DATE)OVER(PARTITIONBYTITLE)
  ------- ------------------------------------------------------------
  title 1                                                           14
  title 2                                                           44
  title 3
  

  Lukasz

• The right way to store the results of the query

  Hey wizards Oracle,.
  
  I have a few questions that take a long time to run. Given that the results of these queries change only once a day, I will execute queries every morning and store their results in a table.
  
  I was going to serialize them in chains to the CSV format and then store them as CLOB. But shit, Oracle is a data table, storage system! This is reinventing the wheel within a wheel.
  Then I thought about creating one table per query would be the right way to store their results. But ordinary tables data recovery would be slow, because I would need to create an additional of ORDER_BY column to maintain the order of the results of the query.
  
  It seems that there is a way to store varrays in the LOB columns, but it does not seem to be appropriate.
  There may be a caching mechanism that could help?
  
  Does anyone know the proper way to store the result of a query?

  What you describe is a reinvention of the materialized views.
  Have you considered using them?

  ----------
  Sybrand Bakker
  Senior Oracle DBA

• Need help in the optimization of the query with the Group and joins by clause

  I'm having the problem by running the following query... It takes a lot of time. To simplify, I added the two tables FILE_STATUS = stores the file load details and COMM table Board table job showing records treated successfully and which was communicated to the other system real. Records with status = T is trasnmitted to another system and traansactions with P is waiting.

  CREATE TABLE FILE_STATUS
  (FILE_ID VARCHAR2(14),
  FILE_NAME VARCHAR2(20),
  CARR_CD VARCHAR2(5),
  TOT_REC NUMBER,
  TOT_SUCC NUMBER);
  
  CREATE TABLE COMM
  (SRC_FILE_ID VARCHAR2(14),
  REC_ID NUMBER,
  STATUS CHAR(1));
  
  INSERT INTO FILE_STATUS VALUES ('12345678', 'CM_LIBM.TXT', 'LIBM', 5, 4);
  INSERT INTO FILE_STATUS VALUES ('12345679', 'CM_HIPNT.TXT', 'HIPNT', 4, 0);
  
  INSERT INTO COMM VALUES ('12345678', 1, 'T');
  INSERT INTO COMM VALUES ('12345678', 3, 'T');
  INSERT INTO COMM VALUES ('12345678', 4, 'P');
  INSERT INTO COMM VALUES ('12345678', 5, 'P');
  COMMIT;

  Here's the query I wrote to give me the details of the file that has been loaded into the system. He reads the table of State and the commission files to display the name of the file, total records loaded, total at the table of the commission and the number of records which has finally been passed successfully loaded (Status = T) with other systems.
  

  SELECT 
      FS.CARR_CD 
      ,FS.FILE_NAME 
      ,FS.FILE_ID
      ,FS.TOT_REC
      ,FS.TOT_SUCC
      ,NVL(C.TOT_TRANS, 0) TOT_TRANS
  FROM FILE_STATUS FS
  LEFT JOIN
  (
      SELECT SRC_FILE_ID, COUNT(*) TOT_TRANS
      FROM COMM
      WHERE STATUS = 'T'
      GROUP BY SRC_FILE_ID
  ) C ON C.SRC_FILE_ID = FS.FILE_ID
  WHERE FILE_ID = '12345678';

  In production, this request has several joins and takes a long time to deal with... the main culprit for me is the join on the COMM table to count the number of number of transactions sent. Please can you give me tips to optimize this query to get results faster? What I need to delete the Group and use the partition or something else. Help, please!

  Don't know if it will be faster based on the information provided, but analytical functions offer an alternative approach;

  select carr_cd, file_name, file_id, tot_rec, tot_succ, tot_trans
    from (select fs.carr_cd,
                 fs.file_name,
                 fs.file_id,
                 fs.tot_rec,
                 fs.tot_succ,
                 count(case
                          when c.status = 'T' then
                           1
                          else
                           null
                        end) over(partition by c.src_file_id) tot_trans,
                 row_number() over(partition by c.src_file_id order by null) rn
            from file_status fs
            left join comm c
              on c.src_file_id = fs.file_id
           where file_id = '12345678')
   where rn = 1;
  
  CARR_CD FILE_NAME            FILE_ID           TOT_REC   TOT_SUCC  TOT_TRANS
  ------- -------------------- -------------- ---------- ---------- ----------
  LIBM    CM_LIBM.TXT          12345678                5          4          2