Details on the order of columns in a Where Clause

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  Hello

  I would like to inform that you can not change the order of columns or remove columns completely as it is by design. However, you can display or hide items in the console window.

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• 'create columns with a where clause' in MDB

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  We have OBIEE sitting on a with a star schema data warehouse.
  
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• Order columns (which make up the primary key constraint) matter in where clause of DML query for use of indexing mechanism to operate.

  Version of DB: database Oracle 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production

  
  I have a table my_table as below:
  create table my_table
  (
  my_code varchar2 (6).
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  forced pk_1 primary key (my_code, my_id)
  );

  
  Primary_key here's a composite key that contains columns 1 (my_code) and 2 (my_id).
  Is there that a difference in the way below queries is executed in terms of performance (use of indexing in the extraction).

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  The understanding I have the order of the column in the where clause should be identical to the sequence in
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  However when I used explain plain both show the same query cost with single scan with index rowid.
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  Your question is answered in the Performance Tuning Guide

  Using indexes and clusters

  14.1.4 choosing composite indexes

  A composite index contains several key columns. Composite indexes can provide additional benefits compared to the index to single column:

  • Improved selectivity

    Sometimes the two or more columns or expressions, each with a low selectivity can be combined to form a composite with a high selectivity.

  • Reduced IO

    If all columns selected by a query are a composite index, then Oracle may return these values in the index without access to the table.

  A SQL statement can use a path on a composite index if the statement contains constructions that use a main part of the index.

  Note:

  This is no longer the case with the skip index scans. See "Index Skip Scans".

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• Interactive reports will change the order of columns

  Hi all
  
  Have experienced this for the 3rd time now. The other times I just create a new report with the request in the order you wish to fix. But it starts to become annoying now...
  
  When I use the arrows to change the column order on my reports interactive nothing happens when running. The new order is saved and appears that way in design mode, but does not change the order on the report.
  
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  Hey,.

  Changing the order in the attributes report is more an effect, since the default report parameters overwrite it.

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  Then save this order order by default, you go to the action menu again and choose save report option this time, select "primary" or "Save as default" depending on your version of apex (this option is available only if you are connected as a developer in the generator of the apex). Then press the ok button again.

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• How to set a null column in a where clause clause involving a statement box

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  .

  .

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  Hello

  Your intuition is right...

  In Oracle NULL is a bit special:

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• Calculate the sum of values of 2 where Clauses

  Hi, sorry to trouble, I have all the data in a database or anything like that, just to think about some of the work I have to do, trying to get ahead. I was wondering how i would be the sum of the values in a column, but with 2 where clauses. By example, if I wanted to the sum of all the values until 18:00 in 1 column and all the after 18:00 for 1 day how I would write this out.

  I don't know how to write separately, i.e.

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  If someone could please advise.

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  Select the name,

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  sum (case when time< '18:00'="" then="" values="" else="" 0="" end)="" as="">

  table

  Group by name;

  ----
  

  Ramin Hashimzade

• Small design on the points of view and a Where Clause Board...

  Hi all...  I just want to check Im doing things right, and he is not a better way to do this...

  Running APEX 4.2.5 and XE 11.2

  Ive built my application around a community of users who have access to certain groups of data...  Ive designed so that there are views and then transparent filter the data of a given user. for example, the view below seamlessly that users can see the filters depending on which application they use, they can see more specifically, what are the features and finally, what group they are actually in.

  Create view ENTITIES like)

  Select * from t_entities t

  where exists (select 1

  of application_groups ag

  where ag.object_name = 'ENTITIES '.

  and ag.object_id = t.entity_id

  and ag.group_name = 'CASH FLOW')

  and exists (select 1 from entity_users EU

  where eu.username = nvl (v ('APP_USER'), USER) / * APEX APPLICATION USER * /.

  and eu.entity_id = t.entity_id)

  and it exists (select 1 from entity_group_members for example

  where eg.entity_group = v('G_ENTITY_GRP_ID') / * ENTITY_GROUP * /.

  and eg.entity_id = t.entity_id)

  )

  The overall costs when I run the explain command is very low (23 or almost), so I think that its an effective way of filtering... However, out of 300 entities or greater, the vast majority of users (75%) can see 75% of data...  Also, I need to create another view to filter another set of data with 2000 records. one with the view in place, 95% of the staff will see 95% of the data and only 10% of the staff see the other 10%...

  I note that its faster when a member of a group brings back only a tiny part of the data compared to the other way around... This is why Im asking before implementing another view of the same type.

  So, on my question. Is there a better way to do this, or the query should be on there head with a WHERE clause does NOT EXIST (xxxxx! = yyyyy)) or soemthing else ther is quite that Ive missed...

  The only other comment is that Im using the upper table "APPLICATION_GROUPS" for more than one type of object (i.e. entities and entity accounts banking..) y at - it no merit in separaitng the two into two tables?

  Thank you very much

  Richard

  Hi Richard,

  Miss me a lot of information but:

  I think that your design could be allowed. It seems a little too mat, maybe, but I think this could work.

  It is important to have the good indexing and use compression of index:

  On application_groups (object_name, the GroupName, groupname) compresses

  IT compresses to entity_users (username, entity_id)

  On the entity_group_members (entity_group, entity_id) compress

  I think v as v ('G_ENTITY_GRP_ID') is a user-defined function? If so, if possible, set the deterministic and uses result_cache.

  Consider partitioning application_groups type (= object_name?)

• Change the order of columns in the report

  Hello

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  See attachment.

  Thank you

  Cut & paste garbage. My fault.

• A question about the order of COLUMN sqlplus and PL/SQL

  Hello everyone.
  
  
  
  I would like to ask a question about sqlplus command COLUMN that I use in order to define the length of my queries of output columns. So, for example, I run something like:
  

  COLUMN market FORMAT a20

  That is why any column with the name 'the market' will be composed by sqlplus as 20 characters.
  
  Currently I'm working on a PL/SQL script that makes this automatic procedure, in other words, instead of manually write for each column in the above COLUMN order, it uses the DBMS_SQL. He read first as input the name of the table and then inside a loop, it detects the maximum length.
  
  For those interested, here is the Oracle documentation page that I found (example 8)
  http://download.Oracle.com/docs/CD/B19306_01/AppDev.102/b14258/d_sql.htm
  
  If everything worked well enough I managed to recover the maximum of each column in my table length, except that I don't know how to use the COLUMN sqlplus command in my PL/SQL block. I would like to do something like that (it's just a pseudo-code)
  

  FOR colIndex in 1 .. numberOfColumns LOOP
          currentColumnName = getColumnName(tableDescriptionObject, colIndex);
          currentColumnLength = getColumnLength(tableDescriptionObject, colIndex);
          
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  END LOOP;

  I would like to know is there a command in PL/SQL to define the appropriate column typeset in sqlplus length?
  
  
  Thanks in advance,
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  Hi, Dariyoosh,

  Sory, I don't think that there is a simple way to publish SQL * most orders fom PL/SQL.
  PL/SQL runs in the database (back-end); There isn't any direct contact with SQL * more at the front end.

  The best way I know is that PL/SQL script (myfile.sql) with orders of the COLUMN, and then have SQL * more run the script (@myfile).

• Details of the order header

  Hello
  I need to create a high level of order header report; I wrote a query, but not able to find some of the field brand with?.
  I would be grateful if you can help me correct this query.
  
  SELECT oa.order_number,
  
  HCA.account_number SHIP_T_ACCT_NO, -? is this ship cust to account number
  
  order_value 0, -?
  
  OA.cust_po_number,
  
  order_despatch_date - 0?
  
  OF OE_ORDER_HEADERS_ALL oa.
  HZ_CUST_ACCOUNTS hca
  WHERE oa.sold_to_org_id = hca.cust_account_id
  
  
  Thanks and greetings

  You might be happier after this

  SELECT DISTINCT H.ORDER_NUMBER,
                  H.HEADER_ID,
                  L.LINE_ID,
                  H.CREATION_DATE,
                  WND.DELIVERY_ID,
                  RC_S.CUSTOMER_NAME SHIP_CUSTOMER_NAME,
                  RC_S.CUSTOMER_NUMBER CUST_NO_SHIP,
                  HL_S.ADDRESS4 || DECODE(HL_S.ADDRESS4, NULL, '', CHR(10)) ||
                  HL_S.ADDRESS1 || DECODE(HL_S.ADDRESS1, NULL, '', CHR(10)) ||
                  HL_S.ADDRESS2 || DECODE(HL_S.ADDRESS2, NULL, '', CHR(10)) ||
                  HL_S.ADDRESS3 || DECODE(HL_S.ADDRESS3, NULL, '', CHR(10)) ||
                  HL_S.POSTAL_CODE || DECODE(HL_S.POSTAL_CODE, NULL, '', ' ') ||
                  HL_S.CITY ||
                  DECODE(HL_S.CITY,
                         NULL,
                         DECODE(HL_S.POSTAL_CODE, NULL, '', CHR(10)),
                         CHR(10)) || UPPER(FTV_SHIP.TERRITORY_SHORT_NAME) "SHIP_TO_ADDRESS",
                  RC_B.CUSTOMER_NAME CUSTOMER_NAME,
                  RC_B.CUSTOMER_NUMBER CUST_NO_BILL,
                  HL_B.ADDRESS4 || DECODE(HL_B.ADDRESS4, NULL, '', CHR(10)) ||
                  HL_B.ADDRESS1 || DECODE(HL_B.ADDRESS1, NULL, '', CHR(10)) ||
                  HL_B.ADDRESS2 || DECODE(HL_B.ADDRESS2, NULL, '', CHR(10)) ||
                  HL_B.ADDRESS3 || DECODE(HL_B.ADDRESS3, NULL, '', CHR(10)) ||
                  HL_B.POSTAL_CODE || DECODE(HL_B.POSTAL_CODE, NULL, '', ' ') ||
                  HL_B.CITY ||
                  DECODE(HL_B.CITY,
                         NULL,
                         DECODE(HL_B.POSTAL_CODE, NULL, '', CHR(10)),
                         CHR(10)) || UPPER(FTV_INV.TERRITORY_SHORT_NAME) "INVOICE_TO_ADDRESS",
                  RCT.FIRST_NAME || DECODE(RCT.FIRST_NAME, NULL, '', ' ') ||
                  RCT.LAST_NAME "CUSTOMER_CONTACT",
                  HCSUA.TAX_REFERENCE "VAT/TAX REGISTARION NO",
                  H.TRANSACTIONAL_CURR_CODE,
                  H.CUST_PO_NUMBER "CUST PO NO",
                  H.ORDERED_DATE,
                  H.SHIPPING_METHOD_CODE "CARRIAGE",
                  RSA.EMAIL_ADDRESS "EMAIL",
                  WDD.ORGANIZATION_ID,
                  TRIM('.'
                       FROM(L.LINE_NUMBER || '.' || L.SHIPMENT_NUMBER || '.' ||
                            L.COMPONENT_NUMBER || '.' || L.SERVICE_NUMBER)) ITEM,
                  L.ORDERED_ITEM PRODUCT_NUMBER,
                  MSI.DESCRIPTION DESCRIPTION,
                  (SELECT SUM(OCLV.CHARGE_AMOUNT)
                     FROM OE_CHARGE_LINES_V OCLV
                    WHERE OCLV.HEADER_ID = H.HEADER_ID AND
                          OCLV.LINE_ID IS NULL) "CHARGE_H",
                  (SELECT SUM(OCLV.CHARGE_AMOUNT)
                     FROM OE_CHARGE_LINES_V OCLV
                    WHERE OCLV.HEADER_ID = H.HEADER_ID AND
                          OCLV.LINE_ID IS NOT NULL AND
                          OCLV.LINE_ID = L.LINE_ID) "CHARGE_L",
                  L.ITEM_TYPE_CODE,
                  L.LINE_NUMBER LINE_NUMBER,
                  L.SERVICE_NUMBER,
                  L.SHIPMENT_NUMBER SHIPMENT_NUMBER,
                  NVL(L.COMPONENT_NUMBER, 0) COMPONENT_NUMBER,
                  WDD.DELIVERY_DETAIL_ID,
                  OTTT.NAME ORDER_TYPE,
                  H.ORDER_TYPE_ID,
                  H.ORG_ID ORDER_ORG_ID
    FROM OE_TRANSACTION_TYPES_TL  OTTT,
         OE_TRANSACTION_TYPES_ALL OTTA,
         WSH_NEW_DELIVERIES       WND,
         RA_SALESREPS_ALL         RSA,
         RA_CONTACTS              RCT,
         AR_VAT_TAX_ALL_B         ARVT,
         FND_TERRITORIES_VL       FTV_SHIP,
         FND_TERRITORIES_VL       FTV_INV,
         RA_TERMS_TL              RTT,
         HZ_CUST_ACCT_SITES_ALL   HCASA_S,
         HZ_CUST_ACCT_SITES_ALL   HCASA_B,
         RA_CUSTOMERS             RC_B,
         RA_CUSTOMERS             RC_S,
         RA_CUSTOMERS             RC,
         HZ_LOCATIONS             HL_S,
         HZ_LOCATIONS             HL_B,
         OE_ORDER_HEADERS_ALL     H,
         WSH_DELIVERY_ASSIGNMENTS WDA,
         WSH_DELIVERY_DETAILS     WDD,
         HZ_PARTY_SITES           HPSS,
         HZ_PARTY_SITES           HPSB,
         HZ_CUST_SITE_USES_ALL    HCSUA,
         HZ_CUST_SITE_USES_ALL    HCSUA_S,
         HZ_CUST_SITE_USES_ALL    HCSUA_B,
         HZ_PARTIES               HP,
         OE_ORDER_LINES_ALL       L,
         MTL_SYSTEM_ITEMS_B       MSI
   WHERE
         L.ORDERED_ITEM = MSI.SEGMENT1(+) AND
         L.INVENTORY_ITEM_ID = MSI.INVENTORY_ITEM_ID(+) AND
         L.SHIP_FROM_ORG_ID = MSI.ORGANIZATION_ID(+) AND
         L.HEADER_ID = H.HEADER_ID AND
         L.TAX_CODE = ARVT.TAX_CODE(+) AND L.ORG_ID = ARVT.ORG_ID(+) AND
         (ARVT.END_DATE is null or ARVT.END_DATE > trunc(sysdate))
         AND ARVT.Enabled_flag = 'Y' AND
         L.LINE_ID = WDD.SOURCE_LINE_ID(+) AND
         HCSUA.SITE_USE_ID = L.INVOICE_TO_ORG_ID AND
         HCSUA_S.SITE_USE_ID = H.SHIP_TO_ORG_ID AND
         HCSUA_S.SITE_USE_CODE = 'SHIP_TO' AND
         HCSUA_S.CUST_ACCT_SITE_ID = HCASA_S.CUST_ACCT_SITE_ID AND
         HCASA_S.CUST_ACCOUNT_ID = RC_S.CUSTOMER_ID AND
         HPSS.PARTY_SITE_ID = HCASA_S.PARTY_SITE_ID AND
         HL_S.LOCATION_ID = HPSS.LOCATION_ID AND
         HCSUA_B.SITE_USE_ID = H.INVOICE_TO_ORG_ID AND
         HCSUA_B.SITE_USE_CODE = 'BILL_TO' AND
         HCSUA_B.CUST_ACCT_SITE_ID = HCASA_B.CUST_ACCT_SITE_ID AND
         HCASA_B.CUST_ACCOUNT_ID = RC_B.CUSTOMER_ID AND
         HPSB.PARTY_SITE_ID = HCASA_B.PARTY_SITE_ID AND
         HL_B.LOCATION_ID = HPSB.LOCATION_ID AND
         WDD.DELIVERY_DETAIL_ID = WDA.DELIVERY_DETAIL_ID(+) AND
         WDA.DELIVERY_ID = WND.DELIVERY_ID(+) AND
         H.SOLD_TO_ORG_ID = RC.CUSTOMER_ID AND RC.PARTY_ID = HP.PARTY_ID AND
         RTT.TERM_ID = H.PAYMENT_TERM_ID AND RTT.LANGUAGE = USERENV('LANG') AND
         H.FLOW_STATUS_CODE <> 'CANCELLED' AND
         L.FLOW_STATUS_CODE <> 'CANCELLED' AND
         H.SALESREP_ID = RSA.SALESREP_ID AND
         H.ORG_ID = RSA.ORG_ID(+) AND
         RCT.CONTACT_ID(+) = H.INVOICE_TO_CONTACT_ID AND
         FTV_SHIP.TERRITORY_CODE = HL_S.COUNTRY AND
         FTV_INV.TERRITORY_CODE = HL_B.COUNTRY AND
         OTTT.TRANSACTION_TYPE_ID = H.ORDER_TYPE_ID AND
         OTTA.ORG_ID = H.ORG_ID AND OTTT.LANGUAGE = OTTT.SOURCE_LANG AND
         OTTA.TRANSACTION_TYPE_ID = OTTT.TRANSACTION_TYPE_ID AND
         OTTA.TRANSACTION_TYPE_ID = H.ORDER_TYPE_ID AND
         OTTT.LANGUAGE = USERENV('LANG') AND
         (H.ORDER_NUMBER = :P_ORDER_NUMBER OR WND.NAME = :P_DELIVERY_NAME) AND
         H.ORG_ID = FND_PROFILE.VALUE('ORG_ID')
   ORDER BY LINE_NUMBER, SHIPMENT_NUMBER, COMPONENT_NUMBER;
  

  Thank you
  Vishalaksha

• When I burn CD for my use on the computer, sometimes the order of the songs are returned, starting with the last song first.

  * Original title: Windows Media player

  When I burn CD for my use on the computer, sometimes the order of the songs are returned, starting with the last song first.  This is the CD, or I do something wrong?  This isn't an ongoing problem... most of the time it's ok.  Can I change the order manually. If Yes, where and how.

  Thank you

  Lee

  Lee - there are a number of possibilities. First of all, it depends whether you burn audio disks or data - if they are audio discs, you can check and rearrange the order of songs in the burn list - if necessary - before you start burning. If you drag multiple files to the burn list quite often the last track you clicked on will go upward, so I wonder if it is what can happen. Back with a little more detail if I not quite correctly interpreted the problem. Best regards, Ric.

• Third party payments - Details of the beneficiary

  Hello everyone, since the item entries > values entry screen, no one knows to what makes database table/column field "Details paid" attach to? I checked pay_element_entry_values_f, salary) input_values_f, pay_element_entries_f, but could not find a match. Any help is very appreciated!

  Thanks, Naveen.

  I downloaded the form values item stocked, and it seems that the details of the beneficiary comes from hr_all_organization_units table where the "ext" flag is set. The organization_id is related to the payee_id in the table pay_personal_payment_methods_f which flows in turn to pay_element_entries_f via personal_payment_method_id.

  I hope this helps!

  Thanks, Naveen.

• changing the order of export format

  Hi all
  
  I want to change the order of the columns in the file exported in FDM according to my needs. How can I change the order of columns in the exported file? Please help me in this.
  
  Thank you!

  Take a look in the script Export Action of any adapter you are using. This is where the output format is defined.

  I forgot to mention if you use the Essbase adapter, you can do so via the definition of the sequence of calc for each dimension, which will determine the order that it appears in the output file. This can be set in the web client or workbench

  Published by: SH on October 18, 2011 09:43

• How to set the size of column sqlplus.exe?

  SQL> select * from dba_cons_columns where user='USER1' and table_name='PARENT1';
  
  OWNER                          CONSTRAINT_NAME
  ------------------------------ ------------------------------
  TABLE_NAME
  ------------------------------
  COLUMN_NAME
  --------------------------------------------------------------------------------
    POSITION
  ----------
  USER1                          PARENT1_PK
  PARENT1
  COL2
           2
  
  
  OWNER                          CONSTRAINT_NAME
  ------------------------------ ------------------------------
  TABLE_NAME
  ------------------------------
  COLUMN_NAME
  --------------------------------------------------------------------------------
    POSITION
  ----------
  USER1                          PARENT1_PK
  PARENT1
  COL1
           1

  It seems little ugly to see these data. Why the length of the column is so long? Please tell how to set the length of columns and other settings so that the displayed data should come out in the form of a well managed and beautiful way.
  Like this:
  

  OWNER     CONSTRAINT_NAME     TABLE_NAME       COLUMN_NAME   POSITION
  -----------     ----------------------------     ------------------        ---------------------    --------------
  USER1        PARENT1_PK              PARENT1             COL2                  2
  USER1        PARENT1_PK              PARENT1             COL1                  1

  I wrote this by hand. How do I get the display to sqlplus.exe?

  Easiest would be to use the command column format and also the linesize option.

  sql>column column_name format a30
  sql>set linesize 300
  

  The order of column would make the display limited to 30 characters only. Also the linesize enlarge the display. Try it and see what it looks like?

  HTH
  Aman...