Who join use in the situation below?

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• Necessary request for the situation below.

  Hi all
  
  I have two table
  
  T1-> deal_site_id, subsection_id
  T2-> deal_site_id, subsection_id, catalog_id
  
  requirement is first of all that I have to check all the subsection_id of the T1 table based on a deal_site_id.
  So subsection_id what ever I get from table T1 I have to check if those that are available in table T2. If they are available, then do nothing, but if they are not available in table T2, then delete the row in the table T1.
  
  I tried to write the query as below but stuck with the exception.
  
  DELETE FROM (SELECT * FROM T1 join T2 ld lid inner)
  COVER ON. DEAL_SITE_ID = LD. DEAL_SITE_ID
  WHERE lid.deal_site_id = 3070
  AND LD. SUBSECTION_ID NOT IN (SELECT DISTINCT liod.subsection_id liod T1 where liod.deal_site_id = 3070)
  );
  
  This gives me an exception as ORA-01752: cannot delete the view without exactly a key preserved table
  Please help me to write this query. Thanks in advance.
  
  Kind regards
  Delphine
  
  Published by: sumajumd on February 2, 2012 03:08

  Hi, Ludo,.

  It looks like:

  DELETE FROM     t1
  WHERE     deal_site_id     = 3070     -- or whatever
  AND     subsection_id   NOT IN (
                        SELECT  subsection_id
                        FROM    t2
                        WHERE   deal_site_id     = t1.deal_site_id
                        AND       subsection_id     IS NOT NULL     -- If necessary
                                )
  ;
  

  I hope that answers your question.
  If not, post a small example of data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and the results desired from these data.
  In the case of a DML operation (for example, REMOVE) the sample data should show what look like the paintings before the DML, and results will be the content of the or the tables changed after the DML.
  Explain, using specific examples, how you get these results from these data.
  Always tell what version of Oracle you are using.

• When you download an attatchement instead of 'open' file I used 'save', the area below has been checked so that an attatcnment is automatically saved in this way every time - how to restore it so that I can just 'open' the attatchment yet?

  Unable to explain more clearly, I hope you understand my question

  For details of how to proceed, see section 'Changing download actions' of this link - https://support.mozilla.com/kb/Managing+file+types

• I want that my users who log on to the virtual remote desktop to use the one I put in this image and not their local keyboard

  Original title: the remote keyboard language

  Hello

  I connect to a remote virtual desktop. My local computer uses a different keyboard language than the remote.

  I want that my users who connect to the virtual remote control to use the one I have set myself in this picture and not their local since keyboard only supports us that we provide in the virtual, not on their local machine.

  I've tried the "Reg" IgnoreRemoteKeyboardLayout key, but I've been the opposite. Who closes?

  Is their a way to force the RDP to use the remote keyboard and not local?

  Thank you

  Hello

  Thanks for posting your query in Microsoft Community.

  I understand you have questions using the remote keyboard on the Windows computer. So, please follow the link below to post your query in the Technet forums, because they have more expertise on this issue.

  TechNet forums

  http://social.technet.Microsoft.com/forums/Windows/en-us/home?Forum=w7itpronetworking

  I hope this helps.

  Thank you

• He had to know the right outer join using...

  He had to know the right outer join using...

  For example: first query left outer join for the emp table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the E.DEPTNO = D.DEPTNO)

  Second query left outer join for the Dept table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the D.DEPTNO = E.DEPTNO)

  In the example above I just Exchange where condition condition to get an outer join of two table with a left outer join itself. Wat is use right outer join, instead, I can swap the status of table name for the result. Please suggest...

  Hello

  chan001 wrote:

  He had to know the right outer join using...

  For example: first query left outer join for the emp table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the E.DEPTNO = D.DEPTNO)

  Second query left outer join for the Dept table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the D.DEPTNO = E.DEPTNO)

  In the example above I just Exchange where condition condition to get an outer join of two table with a left outer join itself. Wat is use right outer join, instead, I can swap the status of table name for the result. Please suggest...

  The two examples above use the old syntax outer join of Oracle. (I guess there should be a sign inside the parentheses, e.g.. +)

  ...  WHERE E.DEPTNO = D.DEPTNO (+)

  )

  The LEFT OUTER JOIN and RIGHT OUTER JOIN terms apply only to the ANSI join syntax, e. g.

  .

  .. FROM EMP E

  DEPT LEFT OUTER JOIN D ON E.DEPTNO = D.DEPTNO

  As Blushadow said above, there's no real point in having LEFT OUTER JOIN and RIGHT OUTER JOIN;  What you can do with one (or a combination of both) can be done with the other.  Most people use LEFT OUTER JOIN systematically and never use RIGHT OUTER JOIN.

  There are situations where using a combination of the two would mean a little less striking, but only a little less and this kind of situation is very common, and one may wonder if the somewhat shorter code is more specific.  I suggest that forget you RIGHT OUTER JOIN.

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• Creating a view using multiple joins - by reducing the number of output lines

  It is difficult to put into words exactly what I want to implement, so I'll just use an example. Let's say I have the following database:
  
  game (id, time, place)
  
  Reader (game_id, name)
  
  Referee (game_id, name)
  
  Foreign keys:
  Player (game_id) references game (id)
  Referee (game_id) references game (id)
  
  It is a very special match, in which:
  A game can have 1 to many players
  A game can have from 1 to several arbitrators
  
  I want to create the following view:
  
  Game_overview (Game_id, time, player, referee)
  
  It's easy to create this view with the following output:
  
  Game1, 15:00, player1, Referee1
  Game1, 15:00, player1, Referee2
  Game1, 15:00, player2, Referee1
  Game1, 15:00, player2, Referee2
  Game1, 15:00, Joueur3, null
  08:00, player1, Referee1, GaMe2
  GaMe2, 08:00, player1, Referee2
  
  HOWEVER, I want it to look like this:
  
  Game1, 15:00, player1, Referee1
  Game1, 15:00, player2, Referee2
  Game1, 15:00, Joueur3, null
  08:00, player1, Referee1, GaMe2
  GaMe2, 08:00, null, Referee2
  
  I think that this should not be TOO difficult to solve, but I can't really get my head around it.

  Welcome to the forum!

  Whenever you have a problem, please post CREATE TABLE and INSERT statements for your sample data. Sinve it's your first post, I'll do it for you:

  CREATE TABLE     game
  (       id          VARCHAR2 (10)     PRIMARY KEY
  ,     time          VARCHAR2 (10)
  --,     location     VARCHAR2 (10)     -- No need to include columns that play no role in this problem
  );
  
  INSERT INTO game (id, time) VALUES ('Game 1',  '3PM');
  INSERT INTO game (id, time) VALUES ('Game 2',  '8AM');
  
  CREATE TABLE     player
  (       game_id          VARCHAR2 (10)
  ,     name          VARCHAR2 (10)
  );
  
  INSERT INTO  player (game_id, name) VALUES ('Game 1',  'Player 1');
  INSERT INTO  player (game_id, name) VALUES ('Game 1',  'Player 2');
  INSERT INTO  player (game_id, name) VALUES ('Game 1',  'Player 3');
  INSERT INTO  player (game_id, name) VALUES ('Game 2',  'Player 1');
  
  CREATE TABLE     referee
  (       game_id          VARCHAR2 (10)
  ,     name          VARCHAR2 (10)
  );
  
  INSERT INTO  referee (game_id, name) VALUES ('Game 1',  'Referee 1');
  INSERT INTO  referee (game_id, name) VALUES ('Game 1',  'Referee 2');
  INSERT INTO  referee (game_id, name) VALUES ('Game 2',  'Referee 1');
  INSERT INTO  referee (game_id, name) VALUES ('Game 2',  'Referee 2');
  

  In this way, people who want to help you can recreate the problem and test their ideas.

  In addition, to say what version of Oracle you are using. The following query will work in Oracle 9.1 or more.

  What you asked is what I call a Query, fixed-price , and this is a way to do it:

  WITH     player_plus     AS
  (
       SELECT     game_id
       ,     name
       ,     ROW_NUMBER () OVER ( PARTITION BY  game_id
                                 ORDER BY          name
                         )         AS r_num
       FROM    player
  )
  ,     referee_plus     AS
  (
       SELECT     game_id
       ,     name
       ,     ROW_NUMBER () OVER ( PARTITION BY  game_id
                                 ORDER BY          name
                         )         AS r_num
       FROM    referee
  )
  SELECT       g.id
  ,       g.time
  ,       p.name     AS player_name
  ,       r.name     AS referee_name
  FROM             player_plus     p
  FULL OUTER JOIN  referee_plus   r  ON   p.game_id     = r.game_id
                                  AND     p.r_num          = r.r_num
  JOIN           game          g  ON     g.id          = COALESCE (p.game_id, r.game_id)
  ORDER BY  g.id
  ,         COALESCE (p.r_num, r.r_num)
  ;
  

  Output:

  ID         TIME       PLAYER_NAM REFEREE_NA
  ---------- ---------- ---------- ----------
  Game 1     3PM        Player 1   Referee 1
  Game 1     3PM        Player 2   Referee 2
  Game 1     3PM        Player 3
  Game 2     8AM        Player 1   Referee 1
  Game 2     8AM                   Referee 2
  

  I see that you have more arbitrators than players in a game. If such was not the case, then you might make it a bit more efficient using a LEFT OUTER JOIN between p and r, rather than a FULL OUTER JOIN, and you can also use only the columns of p where I use COALESCE.

  Published by: Frank Kulash, March 9, 2012 18:15
  Fixed spelling

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  Hello

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• 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?

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