Update with FROM clause

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• Question: update with less clause

  Hello
  
  I use Oracle 11.2, I have two tables with the same structure. I need to update the target table if there is no corresponding row in the source table. Here is the SQL code I think. However, it does not work! Any suggestion on this SQL?
  
  Update tb_trgt set (delFlag = 1)
  Where (id, seq) in
  (select id, tb_trgt seq
  less
  SELECT id, tb_src SEQ);

  Try this...

  UPDATE tb_trgt tgt
     SET delFlag= 1
   WHERE NOT EXISTS (SELECT 1
                       FROM tb_src src
                      WHERE tgt.ID = src.ID AND tgt.seq = src.seq);
  

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• Results of the query variant with unused table in the from clause

  Hi all
  
  I (processing_table2) table specified in the FROM clause in the SQL query , but I have not used any of its value in the SQL statement , but it still affects the results of the query. Please help me out here I'm naïve.
  
  This is the provided query
  
  SELECT SUM((CREV.sadc_extd*CSSP.redit_pcnt)/100)
  
  OF crev revenue_lines,.
  cssp sales_split,
  processing_table2
  WHERE crev.order_num = '7631090072'
  
  Results of the above query : 344028065018.359
  
  
  
  SELECT
  
  Sum((CREV.sadc_extd*CSSP.redit_pcnt)/100)
  
  OF crev revenue_lines,.
  sales_split PCSS
  
  WHERE crev.order_num = '7631090072'
  
  Results of the above query : 26463697309.1046
  
  
  Someone here suggest me pls!

  924804 wrote:
  Hi all

  I (processing_table2) table specified in the FROM clause in the SQL query , but I have not used any of its value in the SQL statement , but it still affects the results of the query. Please help me out here I'm naïve.

  This is the provided query

  SELECT SUM((CREV.sadc_extd*CSSP.redit_pcnt)/100)

  OF crev revenue_lines,.
  cssp sales_split,
  processing_table2
  WHERE crev.order_num = '7631090072'

  Results of the above query : 344028065018.359

  SELECT

  Sum((CREV.sadc_extd*CSSP.redit_pcnt)/100)

  OF crev revenue_lines,.
  sales_split PCSS

  WHERE crev.order_num = '7631090072'

  Results of the above query : 26463697309.1046

  Someone here suggest me pls!

  CARTESIAN PRODUCT of the changes result set

• What is the significance of the CURSOR WITH HOLD clause in a cursor declaration?

  What is the significance of the CURSOR WITH HOLD clause in a cursor declaration?

  A cursor that has been declared with the clause WITH HOLD, after the word CURSOR remains open after a COMMIT or a ROLLBACK. The following example shows how to use the following clause:

       EXEC SQL          DECLARE C1 CURSOR WITH HOLD          FOR SELECT ENAME FROM EMP          WHERE EMPNO BETWEEN 7600 AND 7700      END-EXEC.
  

  The cursor must not be declared for the UPDATE. The WITH HOLD clause is used in DB2 to override the default, which is to close all cursors on validation. Pro * COBOL provides this clause in order to facilitate the migration of applications to DB2 to Oracle. When MODE = ANSI, use Oracle DB2 default, but all host variables must be declared in a declare Section.

  Reference:

  Oracle documentation!
  http://docs.Oracle.com/CD/B10501_01/AppDev.920/a96109/pco03dbc.htm

• Update with the join and group by

  Hi all
  
  I'm currently updating multiple columns in a table from an inner join query.
  First one recover the affected rows and values that I need for the update (which I call this subquery ED_Query).
  It is important to note that this subquery has a group of and and the having clause.
  
  My first attempt (using the query running in the SQL Server query) fails:
  
  SQL > update ED_Update
  2 set ED_Update.dtHoraInicioReal = ED_Query.dtHoraInicioReal,
  3 ED_Update.dtHoraFinReal = ED_Query.dtHoraFinReal,
  4 ED_Update.fPorcentajeRealizado = ED_Query.fPorcentajeRealizado
  HISTORICOS_AVANZA 5. HSAE_HIS_EXPEDICIONDIARIA ED_Update
  inner join 6)
  7. select distinct ED.iIdExpedicion, ED.iIdExpedicionDiaria,
  8 MAX (PT.iOrdenEnTrayecto) + 1 as iNumParadas,
  9 MAX (HPP.iOrden) as iOrdenUltimaParada,
  10 MIN (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60)) as dtHoraInicioReal,
  11 MAX (dtHora_LlegadaReal) as dtHoraFinReal,
  12 100 * cast ((MAX (HPP.iOrden) + 1) as float) / cast ((MAX (PT.iOrdenEnTrayecto) + 1) as float) as fPorcentajeRealizado
  13 of HISTORICOS_AVANZA. ED HSAE_HIS_EXPEDICIONDIARIA
  14 left join HISTORICOS_AVANZA. HSAE_HIS_HORAPASOPARADA HPP
  15 ED.iIdExpedicion = HPP.iIdExpedicion and ED.dtJornada = HPP.dtJornada
  16 left join AVANZA. SAE_URB_PARADASTRAYECTO PT on ED.iIdLinea = PT.iIdLinea and ED.iIdTrayecto = PT.iIdTrayecto
  17 where ED.dtJornada = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
  18 ED.iIdExpedicion, ED.iIdExpedicionDiaria, ED.dtHoraInicioReal, ED.dtHoraFinReal group
  19 having ED.dtHoraInicioReal <>min (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60))
  20 or ED.dtHoraFinReal <>max (dtHora_LlegadaReal)
  (21) ED_Query
  22 we ED_Update.iIdExpedicionDiaria = ED_Query.iIdExpedicionDiaria;
  
  ERROR on line 5:
  ORA-00933: SQL not correctly completed command.
  
  Subquery (ED_Query) work fine in Oracle, so I suspect that the problems are when I mix with the update clause.
  
  SQL > select distinct ED.iIdExpedicion, ED.iIdExpedicionDiaria,.
  2 MAX (PT.iOrdenEnTrayecto) + 1 as iNumParadas,
  3 MAX (HPP.iOrden) as iOrdenUltimaParada,
  4 MIN (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60)) as dtHoraInicioReal,
  5 MAX (dtHora_LlegadaReal) as dtHoraFinReal,
  6 100 * cast ((MAX (HPP.iOrden) + 1) as float) / cast ((MAX (PT.iOrdenEnTrayecto) + 1) as float) as fPorcentajeRealizado,
  7 ED.dtHoraInicioReal ED_dtHoraInicioReal, ED.dtHoraFinReal as ED_dtHoraFinReal, ED.fPorcentajeRealizado as ED_fPorcentajeRealizado
  8 of HISTORICOS_AVANZA. ED HSAE_HIS_EXPEDICIONDIARIA
  9 left join HISTORICOS_AVANZA. HSAE_HIS_HORAPASOPARADA HPP
  10 on ED.iIdExpedicion = HPP.iIdExpedicion and ED.dtJornada = HPP.dtJornada
  11 left join AVANZA. SAE_URB_PARADASTRAYECTO PT on ED.iIdLinea = PT.iIdLinea and ED.iIdTrayecto = PT.iIdTrayecto
  where the ED.dtJornada 12 = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
  13 group of ED.iIdExpedicion, ED.iIdExpedicionDiaria, ED.dtHoraInicioReal, ED.dtHoraFinReal, ED.fPorcentajeRealizado
  14 after ED.dtHoraInicioReal <>min (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60))
  15 or ED.dtHoraFinReal <>max (dtHora_LlegadaReal);
  
  IIDEXPEDICION IIDEXPEDICIONDIARIA INUMPARADAS IORDENULTIMAPARADA DTHORAINI
  ------------- ------------------- ----------- ------------------ ---------
  DTHORAFIN FPORCENTAJEREALIZADO ED_DTHORA ED_DTHORA ED_FPORCENTAJEREALIZADO
  --------- -------------------- --------- --------- -----------------------
  -131076 5662 406 15 JANUARY 13
  15 JANUARY 13 JANUARY 15, 13 15 JANUARY 13 0
  
  -131076 5663 406 15 JANUARY 13
  15 JANUARY 13 JANUARY 15, 13 15 JANUARY 13 0
  
  -131076 5664 406 15 JANUARY 13
  15 JANUARY 13 JANUARY 15, 13 15 JANUARY 13 0
  
  After reading this forum, I have change the query and try the following:
  
  SQL > UPDATE
  () 2
  3. select distinct ED.iIdExpedicion, ED.iIdExpedicionDiaria,
  4 MAX (PT.iOrdenEnTrayecto) + 1 as iNumParadas,
  5 MAX (HPP.iOrden) as iOrdenUltimaParada,
  6 MIN (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60)) as dtHoraInicioReal,
  7 MAX (dtHora_LlegadaReal) as dtHoraFinReal,
  8 100 * cast ((MAX (HPP.iOrden) + 1) as float) / cast ((MAX (PT.iOrdenEnTrayecto) + 1) as float) as fPorcentajeRealizado,
  9 ED.dtHoraInicioReal ED_dtHoraInicioReal, ED.dtHoraFinReal as ED_dtHoraFinReal, ED.fPorcentajeRealizado as ED_fPorcentajeRealizado
  HISTORICOS_AVANZA 10. ED HSAE_HIS_EXPEDICIONDIARIA
  11 left join HISTORICOS_AVANZA. HSAE_HIS_HORAPASOPARADA HPP
  12 on ED.iIdExpedicion = HPP.iIdExpedicion and ED.dtJornada = HPP.dtJornada
  13 left join AVANZA. SAE_URB_PARADASTRAYECTO PT on ED.iIdLinea = PT.iIdLinea and ED.iIdTrayecto = PT.iIdTrayecto
  14 where ED.dtJornada = TO_DATE (January 14, 2013 ',' DD/MM/YYYY ') and ED.iIdExpedicion in (-131076)
  Group 15 of ED.iIdExpedicion, ED.iIdExpedicionDiaria, ED.dtHoraInicioReal, ED.dtHoraFinReal, ED.fPorcentajeRealizado
  16 having ED.dtHoraInicioReal <>min (dtHora_LlegadaReal + iTiempoEnParada /(24*60*60))
  17 or ED.dtHoraFinReal <>max (dtHora_LlegadaReal)
  18)
  19 SET ED_dtHoraInicioReal = dtHoraInicioReal,
  20 ED_dtHoraFinReal = dtHoraFinReal,
  21 ED_fPorcentajeRealizado = fPorcentajeRealizado;
  
  ERROR on line 2:
  ORA-01732: operation non-legal data manipulation on this point of view
  
  Little help?
  
  Thanl in advance.
  
  Published by: 984483 on 28-ene-2013 01:48

  Hello

  Thanks for posting the CREATE TABLE and INSERT.
  Don't forget to post the desired results of these sample data, i.e. the content of the or the tables changed after the UPDATE is made.

  Is that what you want ed_update to look like after that everyhting is finished?

  DATE01      NUMBERMAX  NUMBERSUM
  ---------- ---------- ----------
  01/01/2013         30         60
  02/01/2013          0          0
  03/01/2013          0          0
  

  If so, here's a way to do it:

  UPDATE     ed_update     u
  SET     (numbermax, numbersum) =
       (
               SELECT  MAX (number01)
            ,     SUM (number01)
            FROM     ed_query
            WHERE     date01     = u.date01
       )
  WHERE     date01     = TO_DATE ('01/01/2013', 'DD/MM/YYYY')   -- If wanted
  ;
  

  In Oracle, INNER JOIN works only in the FROM clause of a SELECT statement.
  When you want to update a table with values from another table, you can do a subquery correlated (as I showed above) or use the MERGER instead of UPDATE.

• SQL - update with joins

  My database contains several tables in a parent-child relationship (5 levels). Tables for children contain unique (foreign key) of the parents. I need to update a field in the table below level with a hardcoded value (for example: the value d.field3 = 103), but only on the rows that match certain general criteria. Criteria are set at different levels of the hierarchy. I tried several approaches, but in the end, I still get the same error:
  
  ORA-01779: cannot modify a column that is mapped to a table not preserved key
  
  So far, I tried the following:
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  I am trying to adapt some scripts from SQL Server to Oracle, but nothing seems to work for this one. Your help is greatly appreciated.
  
  Thank you
  Alberto

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      and CM_CASE.case_id > 799999
      and CM_RULE.rule_category_id 9
      and CM_RULE.task_id in (102,108,112,113,114,123,116)
  )
    and CM_CRITERION_LINE_MASTER.function_id=11
  

  Of course, you need to test.

  Time to understand that SQL Server and Oracle, as well as other DBMS each differ :)

  Gints Plivna
  http://www.gplivna.EU

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