Updated a case of pid output structure

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  Concerning

• Controls that trigger cases of timeout event structure

  In a structure of the event, we can understand the controls in the event of timeout. But if we do it this way, we do not get event data node associated with the controls. I don't know if it is a good practice and whether there are issues listed. Please comment. Thank you.

  guangdew1 wrote:

  In a structure of the event, we can understand the controls in the event of timeout. But if we do it this way, we do not get event data node associated with the controls. I don't know if it is a good practice and whether there are issues listed. Please comment. Thank you.

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• update with case

  How do update with different conditions

  Student UPDATE

  SET status = 'yes '.

  UNIV_NUMB = ' 222 -"

  where id = '112233456'

  AND YEAR = ' 2014 "

  case

  When APPLICATION_RESULT = 'C '.

  Then)

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  When APPLICATION_RESULT = 'F'

  Then)

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  end

  Hello

  Maybe you want something like this:

  Student UPDATE

  SET status = 'yes '.

  ID WHERE = '112233456'

  AND year = '2014' - is this really a string?  Why?

  AND ((application_result = 'C'

  AND confirmed = 'R '.

  )

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  )

  )

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  If not, post a small example data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and also publish outcomes from these data.

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  Explain, using specific examples, how you get these results from these data.

  Always say what version of Oracle you are using (for example, 11.2.0.2.0).

  See the FAQ forum: https://forums.oracle.com/message/9362002

• update using case statement

  Hello my friends
  I have a table "encompasses": continent, country, percentage
  
  now the update should change the continent field, all the 'Europe' that 'Asia' and all 'Asia' to 'America' and 'America', 'Europe' using cases and an update statement.
  
  So I wrote and I got this error

  Error starting at line 2 in command:
  UPDATE encompasses
     SET continent=     
        CASE  WHEN continent='Europe'  THEN 'Asia'   
        WHEN continent='Asia'  THEN 'America'  
        WHEN continent='America' THEN 'Europe'
        END
  
   
                           
  Error report:
  SQL Error: ORA-01407: cannot update ("intern"."ENCOMPASSES"."CONTINENT") to NULL
  01407. 00000 -  "cannot update (%s) to NULL"
  *Cause:    
  *Action:

  Please give me advice, thanks.
  

  -------------------------------------------------------
  --  File created - Monday-May-13-2013   
  --------------------------------------------------------
  --------------------------------------------------------
  --------------------------------------------------------
   
    CREATE TABLE "intern"."ENCOMPASSES" ("COUNTRY" CHAR(2), "CONTINENT" VARCHAR2(20), "PERCENTAGE" NUMBER) 
   
   
     COMMENT ON COLUMN "intern"."ENCOMPASSES"."COUNTRY" IS 'the country code'
   
     COMMENT ON COLUMN "intern"."ENCOMPASSES"."CONTINENT" IS 'the continent name'
   
     COMMENT ON COLUMN "intern"."ENCOMPASSES"."PERCENTAGE" IS 'percentage, how much of the area of a country belongs to the
              continent'
   
     COMMENT ON TABLE "intern"."ENCOMPASSES"  IS 'information to which continents a country belongs'
  REM INSERTING into intern.ENCOMPASSES
  SET DEFINE OFF;
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('cx','Asia',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('eg','Asia',10);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('ge','Asia',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('id','Asia',100);
   
   
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('ad','Europe',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('al','Europe',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('at','Europe',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('ba','Europe',100);
  
  
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pa','America',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pe','America',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pm','America',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pr','America',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('py','America',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('sr','America',100);
  Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('sv','America',100);

  Thank you, im using oracle 11g and ubuntu12
  best, david
  
  Published by: 1003209 on May 13, 2013 10:12

  If the continent does not fit the clauses WHEN CASE returns NULL. Add on the OTHER:

  UPDATE encompasses
     SET continent=
        CASE  WHEN continent='Europe'  THEN 'Asia'
        WHEN continent='Asia'  THEN 'America'
        WHEN continent='America' THEN 'Europe'
        ELSE continent
        END
  

  SY.

• update using case

  update TRG
  set
  C2=(using Case only 
  Where 
  ...
  
  
  
  1).FOR C2 when TRG.K=SRC.K  then SRC.B ELSE 0 
  
      a).TRG.K=SRC.K (Only one row for id = 300 then SRC.B)
      b).TRG.K=SRC.K & TRG.K!=SRC.K (two rows row for id = 100 then 0 for first row when TRG.K=SRC.K then 0 else SRC.B)
  
  
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  TRG 
  
  K       Id                      C2    
  
  201     100                3
  202     100               4
  
  201     300                 5   
  
  
  Expected:
  
  TRG
  
  SRC.B   K       Id                      C2    
  
  30     201     100                0
  30     202     100               30
  
  42     201     300                 42  

  It looks like, I was lucky to guess :), but this time I honestly don't know what you're after :(
  If there is more than 2 ranks cnt > 1 and and rn = 1 will assign 0 to line 1 and b for the rest of the lines
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  There is another possible change: row_number() over (partition by order of identification by k desc) rn, i.e. reverse the order of numbering
  Please provide the desired result

  rn cnt c2 c2 c2
  
  1   4   0  0  ?
  2   4   b  0  ?
  3   4   b  0  ?
  4   4   b  b  ?
          |  |
          |  cnt > 1 and rn < cnt
          |
          cnt > 1 and rn = 1
  

  Concerning

  Etbin

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