Tuning - using the CASE statement in the WHERE clause of the query

Similar Questions

• Using a CASE statement in 'IN' where clause clause

  Hello

  I have a form that users see after they connect with a few items and they type or select values based on the element type. All reports in the application use these values of PAGE 1 in where clause to filter the lines.

  One of these question is "Quarter".  I have a group of radio buttons on the PAGE 1 on the P1_QTR point.

  I need to provide users a way to take the last 4, last 3, last 2 or current quarter and I need to dynamically build a clause WHERE the interactive report based on the selection in the form.

  I am trying to use the CASE as shown below and get the syntax error.

  AND QTR to (when BOX: P1_QTR = 'CURRENT' then ("T4"))

  When: P1_QTR = "LAST" then ("Q3")

  When: P1_QTR = 'LAST TWO' then ('Q3, "Q4")

  When: P1_QTR = 'LAST THREE' then ("Q2", "Q3,' T4 ')

  another ("T1", "T2", "Q3,' T4 ')

  END)

  How can I achieve this?

  Following a simple logic, try

  and QTR to

  (

  Select 'T4' double where: P1_QTR <> 'LAST '.

  Union of all the

  Select 'Q3' to double where: P1_QTR <> "in PROCESS".

  Union of all the

  Select "Q2" double where: P1_QTR not in ('CURRENT', 'LAST', "LAST TWO")

  Union of all the

  Select "Q1" double where: P1_QTR not in ('CURRENT', 'LAST', 'LAST TWO', 'THREE LATEST')

  )

• Case statement in a WHERE clause

  Gurus,
  
  Im trying to avoid Union of several select statements using a CASE inside a WHERE clause. When the parameter is defined as "What's new" it is advisable to use a code and for "Update Items" another condition.
  
  Having a problem with the following... I know that BOX in WHEREs instructions are allowed only can not make it work for this one.
  
  

  and case  when 'New Items' = 'xxx' --p_item_status 
           then  msi.creation_date = msi.last_update_date
        when 'Updated Items' = 'bbb' --p_item_status  
           then  msi.creation_date != msi.last_update_date
        else 1=1
  end;  

  Points for correct and helpful answers!
  
  Published by: sreese on March 27, 2012 17:51

  Hello

  The great thing about CASE expressions, is that they allow you to use a login IF-THEN-ELSE in the clause SELECT, the ORDER BY clause or anywhere else. The WHERE clause has its own way to IF-THEN-ELSE logic, so even if you can use a CASE expression in a clause WHERRE, it usually does not help anything. You can do somehting like this:

  WHERE     (     :p_item_status        = 'New Items'
       AND     msi.creation_date  = msi.last_update_date
       )
  OR     (     :p_item_status        = 'Updated Items'
       AND     msi.creation_date  != msi.last_update_date
       )
  OR     (     :p_item_status        NOT IN ( 'New Items'
                             , 'Updated Items'
                             )
       )
  

  This guess: p_item_status is not NULL.
  If: p_item_status can be NULL, and you want to include all the lines where it is, and then change the last condition to

  OR     ( NVL (:p_item_status, 'OK') NOT IN ( 'New Items'
                               , 'Updated Items'
                               )
       )
  

  I hope that answers your question.
  If not, post a small example of data (CREATE TABLE and INSERT, only relevant columns instructions), some values of the parameter and the expected results of these data for each value of the parameter.
  Explain, using specific examples, how you get these results from these data.
  Always tell what version of Oracle you are using.

• A CASE statement with additional where clause

  Hi all
  
  I need assistance in which this obligation clause
  
  Table:-balance_table
  
  Columns:-balance_type, balance_amount, balance_month, budget_name
  
  balance_type column had given 'Real' OR 'Budget '.
  
  Now I am trying to extract data such as: if: entered_month is Mar-2009 then before and including Mar-2009 will show real balance sheet Date and after Mar-2009 will show budget data.
  
  It works fine, I need to add a condition more restrict the budget name, there are several budget_name in the table for balance_type = 'Budget '.
  
  
  
  SELECT SUM (balance_amount), balance_type, balance_month
  OF balance_table
  WHERE balance_type =
  (CASE
  WHEN balance_month < =: entered_month
  THEN 'real '.
  ANOTHER 'Budget '.
  END
  )
  AND budget_name = 'BUDGET1.
  Balance_type GROUP, balance_month
  
  Stated above is erroneous because ' AND budget_name = ' BUDGET1 "clause restricts the set of data."
  
  Please help in contrcuting where clause 1) to sort the data according to Budget/actual and 2) for specific budgets, so budget_type = Budget
  
  Thank you
  Bobin

  That should do it.

  SELECT SUM (balance_amount),
         balance_type,
         balance_month
  FROM balance_table
  WHERE (balance_type = 'Actual'
         and balance_month <= :entered_month
        )
  or (balance_type = 'Budget'
      and balance_month > :entered_month
      and budget_name = :entered_budget_name
     )
  GROUP BY balance_type,
           balance_month
  ORDER BY 2
  

  See you soon
  Sarma.

• Case statement in a where clause clause

  Hi all
  This is a query that works perfectly except when: P_value don't have any value the two result Y and N should show as a result.
  I tried with a statement of NVL but it gives me an error. Someone can help me.
  
  -----------------------------------
  Select
  ID
  CASE
  WHEN (colonne_1) > (column_2)
  THEN 'Y '.
  ANOTHER "N".
  END 'Test '.
  OF tabel_1
  WHERE
  (CASE
  WHEN (colonne_1) > (column_2)
  THEN 'Y '.
  ANOTHER "N".
  END
  ) =: P_value
  ---------------------------------

  When: P_value have no any value the two result Y and N should show as a result.

  It is not fair

  SELECT id, CASE WHEN (column_1) > (column_2) THEN 'Y' ELSE 'N' END "Test"
    FROM tabel_1
   WHERE (CASE WHEN (column_1) > (column_2) THEN 'Y' ELSE 'N' END = :p_value
       OR :p_value IS NULL)
  

  ??

• No output for report of XML editor using CASE/DECODE in a Where Clause

  Hello
  
  I have a requirement of the company to modify an existing report that has two input parameters,
  -> p_statcode (closed status) which may have values "Y" or "n".
  -> p_overdue (flag late), which can have values of "Y" or "n".
  
  The flag late is a column evaluated with O/N values and it is evaluated as follows,
  

  ONTF_MOD_VAL(NVL (
                                       (TRUNC (SYSDATE)
                                        - (TO_DATE (oe_order_lines.attribute18,
                                                    'DD-MON-RRRR')
                                           + TO_NUMBER (fnd_lookup_values.meaning))),
                                       0
                                    ))
                          overdue_flag

  The requirement of user now is that they must be a third option for setting called p_overdue ALL,
  which by the way the output should include records with
  p_statcode is p_statcode ELSE is N AND Y OR p_overdue p_overdue is N
  
  In other words records with raising the Y and N for flag late must be returned regardless of the value given to the closed state.
  
  Original where clause contained in the data definition file is as follows,

  WHERE Closed_Status = nvl(:p_statcode,Closed_Status)
                     AND overdue_flag = nvl(:p_overdue,overdue_flag)

  My modified code is the following,

  WHERE   Closed_Status = NVL (:p_statcode, Closed_Status)
           AND overdue_flag = (CASE
           WHEN :p_overdue = 'Y' THEN 'Y'
           WHEN :p_overdue = 'N' THEN 'N'
           ELSE overdue_flag
           END)

  OR

  WHERE   Closed_Status = NVL (:p_statcode, Closed_Status)
           AND overdue_flag = DECODE (:p_overdue, 'Y', 'Y', 'N', 'N',overdue_flag)

  Both approaches have the same problem.
  The output is in EXCEL format. The modified query works very well for p_overdue as Y or N but when p_overdue is passed as ALL he returned a blank EXCEL sheet with just exit report column headings.
  Any help regarding, why is this the case? What's not in my approach?
  
  Kind regards
  Vishal

  unclear on p_overdue = ALL
  P_overdue = ALL on what necessary values?

  try sth like

  WHERE   Closed_Status = NVL (:p_statcode, Closed_Status)
  AND (
     overdue_flag = DECODE (:p_overdue, 'Y', 'Y', 'N', 'N',overdue_flag) and :p_overdue != 'ALL'
     or
    :p_overdue = 'ALL' and (overdue_flag = 'Y' or overdue_flag = 'N')
  )
  

  for overdue_flag, which has more then 'Y' values of "n".
  If overdue_flag that in ('Y', ' don't) then

  WHERE   Closed_Status = NVL (:p_statcode, Closed_Status)
  AND (
     overdue_flag = DECODE (:p_overdue, 'Y', 'Y', 'N', 'N',overdue_flag) and :p_overdue != 'ALL'
     or
    :p_overdue = 'ALL'
  )
  

• Problem in the export using the QUERY functionality

  Problem in the export using the QUERY functionality
  
  
  I'm trying to export some rows in a table using the query functionality
  and I have some errors... I'm using the syntax is
  
  system@orcl QUERY = scott.emp expdp: '"WHERE emp_no = 123455" '
  DIRECTORY = data_pump_dir DUMPFILE = data_pump.dmp
  LOGFILE = data_pump_12345.log INDEX = n
  
  Can someone tell me please the problem with that statement
  
  I also tried to use the simple export
  
  exp file system@orcl = orcl_export.dmp log = orcl_export.log
  tables = Scott.EMP index = QUERY = n------"WHERE emp_no\ = 123455\"
  
  and this error
  
  EXP-00008: ORACLE error 904
  ORA-00904: identify invalid
  
  My os is Solaris
  Please let me know what the problem

  Hello

  Try to create parfile and use that, otherwise, you will need to escape each clause correctly to run exp or expdp successfully.

  test.par

  tables=emp
  query="WHERE emp_no=123455"
  
  or
  tables=myobjects
  query="WHERE owner='SYS'"
  
  $> exp username/password parfile=test.par
  
  Export: Release 10.2.0.1.0 - Production on Thu Mar 19 10:17:48 2009
  
  Copyright (c) 1982, 2005, Oracle.  All rights reserved.
  
  Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
  With the Partitioning, OLAP and Data Mining Scoring Engine options
  Export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
  
  About to export specified tables via Conventional Path ...
  . . exporting table                      MYOBJECTS      22650 rows exported
  Export terminated successfully without warnings.
  

  Concerning

  Published by: OrionNet on March 19, 2009 10:21

• Inserting data by using the query

  Hello

  In a book, I read the Sub statement:

  Inserting data by using the query (DML)

  If the user wants to transfer data from a table to another table in the insert statement are used independently of data that can be processed or not processed form.

  Can someone clarify what is the significance of this (processed or unprocessed form).

  
  

  Thank you.

  Why don't you ask the author of the book.

  How can we know what the author means when you take a quote out of context and don't provide any reference so that we can see exactly what is shown to you.

  I can only imagine that they are referring to data that are queried directly, "like what", another table, or who was interrogated and manipulated before be inserted.

• the search for empty cells by using the query designer

  Hello

  I'm trying to exclude empty cells in a field (by using the Query Builder), and I did:

  xDocumentSource < match > "CDL".

  < AND >

  < NOT > (xRelatedMsgid < match > "" "")

  but it does not work. I tried "NULL", but it does not work either. Could someone tell me how to do it (or where I can find examples of queries).

  Kind regards

  Iwona

  https://blogs.Oracle.com/Kyle/entry/searching_for_null_values_ucm

• Using the QUERY parameter in exp/expdp

  Hi, I've faced a nite last question.
  IM currently using Oracle 10 g (10.2.0.4) OS - MS Windows Server 2003
  
  I want a dump of tables to export multiple schemas. say (acb.m1, pqr.b2, xyz.b1)
  
  Each table has a minimum lines of 2,000,000,
  
  And I want to just the initials 10 rows in each table of export
  
  Is it possible that I can do this...
  
  Please answer.
  Thanks in advance

  Export tables in multiple schemas is not supported in Data Pump until 11.1.0.7. So if you're on 10g, you will need to run multiple commands expdp. For only 10 lines of each table, use the query parameter

  Query = "where rownum"<>

  This will apply to all the tables you export.

  I hope this helps.

  Dean

  Published by: Dean WINS January 30, 2012 08:42

• DataPump import by using the query

  Hello
  
  I need to import data by filtering using the query. can anyone help?
  
  Thank you

  Hello
  example of

  expdp HR/hr = emp QUERY:'"WHERE dept_id > 10 AND sal > 10000"' NOLOGFILE = y DIRECTORY = dpump_dir1 DUMPFILE = exp1.dmp

  Impdp HR/hr DIRECTORY = dpump_dir1 DUMPFILE = expfull.dmp QUERY = departments:'WHERE department_id «»< 120"'="" nologfile="">

  See this link

  http://download.Oracle.com/docs/CD/B13789_01/server.101/b10825/dp_import.htm

• IMPDP | Possible using the query option

  HI PPL,
  
  I wanted to know if IMPDP is possible by using the query option, as I took full expdp dump of the mentioned table and want to import only select lines.
  
  Impdp arup/arup directory = demo_dir dumpfile = employees.dmp
  Query = employees:------"" where salary\ > 10000\ order of salary "tables used ="
  
  version: 10 gr 2
  platform: UNIX
  
  concerning

  Obviously, it will be slow if you are using the query option, because IMPDP must import only the data that meets the criteria; It of why we export only limited data (one or two tables as needed) and import them completely.

  Concerning
  Girish Sharma

• List of virtual machines in TIME using the query service

  Someone been able to use the query service to produce a range of virtual machines in a paralytic? I don't see all the attributes on the VclQueryadminVMField that reference the vApp.

  I log in the org of system.

  Any help would be appreciated.

  Name of the action: getVAppVms

  Entry: VAPP (vCloud:VApp)

  Output: Array / vCloud:VM

  Script:

  var vcdHost = vApp.getHost();
  var vms = new Array();
  
  var queryService = vcdHost.getQueryService();
  expression = new VclExpression(VclQueryVMField.CONTAINER, vApp.getReference().href, VclExpressionType.EQUALS);
  filter = new VclFilter(expression);
  params = new VclQueryParams();
  params.setFilter(filter);
  
  var resultSet = queryService.queryRecords(VclQueryRecordType.VM, params);
  while (resultSet != null) {
      var records = resultSet.getRecords(new VclQueryResultVMRecord());
      System.log(records.length + " VM records found");
      for each (var record in records) {
       var vmRef = new VclReference();
       vmRef.href = record.href;
       vmRef.name = record.name;
       vmRef.type = record.type;
       vms.push(vcdHost.getEntityByReference(VclEntityType.VM, vmRef));
      }
      resultSet = resultSet.getNextPage();
  }
  
  return vms;
  

  This is what made our team (more precisely - Christophe)

• Not able to change the password by using the query. Select APPS.fnd_web_sec

  Not able to change the password by using the query.
  Select APPS.fnd_web_sec.change_password ('username', 'password') 'RES' double;
  
  Can someone tell why and what privileges and subsidies have flexibility to the user non-apps while it can change the password using fnd_web_sec.change_password.
  
  
  
  Concerning

  the information above does not solve my problem, I get the message

  Because you do not have permission on all objects that are referenced by the API (see below).

  Select FND_WEB_SEC. CHANGE_PASSWORD ('MARSHAD', 'mohammad @123') "RES" of the double

  *

  ERROR on line 1:

  ORA-00942: table or view does not exist

  ORA-06512: at the 'APPS '. FND_CORE_LOG', line 25

  ORA-06512: at the 'APPS '. FND_CORE_LOG', line 432

  ORA-06512: at the 'APPS '. FND_PROFILE', line 110

  ORA-06512: at the 'APPS '. FND_SSO_MANAGER", line 227

  ORA-06512: at the 'APPS '. FND_WEB_SEC', line 1425

  ORA-06512: at line 1...

  can you please list me what are the grants and other Jules Destrooper I should give to a user so that he can change password.

  I don't have the list of objects and you should get yourself by consulting the site code and eTRM API.

  by changing the DDT in the user non-apps after the grant, will, it may be able to change the password.please tell this syntax is correct or not.
  Select applications. FND_WEB_SEC. CHANGE_PASSWORD ('user', 'pwd') "RES" of the double

  What is the point of using 'FND_WEB_SEC. CHANGE_PASSWORD' and not FNDCPASS or FND_USER_PKG API?

  Thank you
  Hussein

• using a Case statement to display the values of column even as table headers

  I have a database that has been set up kind of tricky, in that some tables are made up of columns that are field names and one link to another table that contain the data for these field... also names there ID displays as many lines instead of as a row of data. I would like to write a query to extract that information and display it as one line for each ID.

  example: table 1

  ID, name, itemresponse and itemcode, Description

  Dee Jones Childrens Hospital 123 SITE location

  123 dee Jones, Date of appointment next NEXTAPPT 22/04/2014

  123 dee Jones was on bedrest NOSHOW reason do not show

  I would like to have the display of data as a record on this same patient, instead of as 3 separate registers (with the Description column in table 1

  Table 2

  ID, name, place, Date of the next meeting, show no reason

  123 dee Jones Childrens Hospital 22/04/2014 was the bed rest

  I have included the code I worked on below my question, for me to get the desired results should I use the Case statement and it's the right way to do it below?

  (SELECT
  PAT.ID "PATIENT ID."
  PAT. FIRST | » '|| PAT. "PATIENT FIRST NAME."
  PAT. "PATIENT DOB," DATE_OF_BIRTH
  DS. Date 'Date of inpatients ',.
  Dai. ITEM_CODE "Item Code",
  Dai. DESCRIPTION "Description."
  Siad. ITEM_RESPONSE,
  

  Max (CASE WHEN dai. ITEM_CODE IS "SITE" THEN DAI. Decription
  ANOTHER NULL
  END) AS "name of the hospital."
  
  Max (CASE WHEN DAI.) ITEM_CODE IS 'NEXTAPPT' THEN DAI. ITEM_Description
  ANOTHER NULL
  END) AS 'next Appt Date. "
  
  Max (CASE WHEN DAI.) ITEM_CODE IS "LASTDATE" THEN DAI. Description
  ANOTHER NULL
  END) AS 'last visit Date.
  
  Max (CASE WHEN DAI.) ITEM_CODE IS 'NOSHOW' THEN DAI. Description
  ANOTHER NULL
  END) THAT "the reason has not shown".
  
  Of
  (PAT.ID "IDENTIFYING PATIENT",
  PAT. FIRST | » '|| PAT. "PATIENT FIRST NAME."
  PAT. "PATIENT DOB," DATE_OF_BIRTH
  DS. Date 'Date of inpatients ',.
  Dai. ITEM_CODE "Item Code",
  Dai. DESCRIPTION "Description."
  Siad. ITEM_RESPONSE

  Of
  
  dm_sessions Ds,
  dm_session_assessments dsa,
  DAS dm_admin_sections,
  dm_session_assessment_items Siad,
  Dai dm_admin_items,
  Po Patient_Orders,
  Inventory inv,
  Patients_Table PAT
  dm_admin_categories CAD
  
  where dsa.session_Id = ds.session_Id
  and PAT.ID = ds. Patient_ID
  and dsa.excluded_assessment =' no
  and dac.category_code = 'OPEN'

  and dsa.section_id = das.section_id
  and das.category_id = dac.category_id
  and das.section_code = 'northwest'
  and dai.section_id = das.section_id
  and dsai.item_id = dai.item_id
  and dsai.session_assessment_Id = dsa.session_assessment_Id
  and dsai.excluded =' no
  - and Dai.ITEM_ID = Dsai.ITEM_ID
  and Dai.ITEM_CODE IN ('SITE', 'NEXTAPPT', 'LASTDATE', 'NOSHOW')
  and po.patient_ID = ds.patient_ID
  and in. NDC_NO = inv. NDC_NO
  and inv. TDRUG_ABBREV = in. DRUG_ABBREV
  
  PAT.ID GROUP, PAT. FIRST | » '|| PAT. LAST, PAT. DATE_OF_BIRTH, ds. Date, dai. ITEM_CODE, dai. DESCRIPTION, Siad. ITEM_RESPONSE))

  Hello

  DATE is not a very good name for a column.  Use something like EVENT_DATE, that will not be confused with a keyword from Oracle, instead.

  I don't see something like this column in the CREATE TABLE statement.  He will always be the same value on all lines?

  Here's a way to get the results you requested:

  SELECT id

  first name | ' ' || LastName AS name

  Date of birth

  MAX (CASE WHEN item_code = "NEXTAPPT", THEN item_response END) AS next_appointment,

  MAX (CASE WHEN item_code = "LASTDATE" THEN item_response END) AS last_visit_date,

  MAX (CASE WHEN item_code = "SITE" THEN item_response END) AS location

  FROM mytable1

  GROUP BY id, firstname, lastname, dob

  ;

  Of course, I can't test it very well until you post INSERT statements for the sample data.

  I guess that 2 or more lines of the entry have the same id, then they will necessarily be first name last name, the name and date of birth, too.  No doubt they are standardized in your actual tables.