Data recovery before the insert in the procedure

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  I am interested to understand if you can easily recover data if files logs damaged for some reason any. So far I do not see how this can be easily achieved db_backup requires a work environment, and because log files can have disappeared, the LSN of the file data will be higher than the last newspaper - and therefore refuse to create the environment.
  
  Ideally, I guess, I'm looking for a tool that can reset the LSN in place. It would be preferable to have access to your 100 GB of data and accept a small amount of data loss or inconsistency that have nothing.
  
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  Hello

  NSE reset can be done using lsn-r db_load or by using the lsn_reset() method, and it is in place.

  If your log files are damaged, you will need to check the database files (you can use the BDB db_verify utility or the verify() method). The actions you take more depending on the result of checking the database files of:
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• Data block in the procedure and the Base Table

  Hello
  
  I hava a form with a block of master and detail. The fields in the Master block are
  
  Emp_name, DateOfJoin, salary... I created this block with the procedure with a Ref Cursor, becaue the user
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  not sure if I get your needs. I understand the following:
  You have a block based on table emp, containing a DateOfJoin column and the user should be able to enter into a 'complex' where denomination.

  To do this, you do not have to base block one a procedure or ref_cursor. Two possibilities:

  Add two fields more directly in the block that are non-base of data-objects of type date fixed query on yes and let the user to enter a date range in these columns. In the accumulation of PRE-QUERY-trigger a WHERE condition by using the value in this field:

  something like:

  DECLARE
    vcMin VARCHAR2(10):='01.01.1700';
    vcMax VARCHAR2(10):='01.01.2999';
  BEGIN
    IF :BLOCK.DATE_FROM_JOIN IS NOT NULL THEN
      vcMin:=TO_CHAR(:BLOCK.DATE_FROM_JOIN, 'DD.MM.YYYY');
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  END;
  

  Another option:
  together, the length of the request of the DATEOFJOIN field to say 255, then the user can directly enter #BETWEEN fromdate AND fodate in the field.

• Return max date records before the start date

  Hello
  
  Can anyone help please?
  
  I have two subqueries, a tableofchildren called, the other called tableofworkers. Tableofchildren identifies the date the child started a class.
  
  The second query, Tableofworkers, lists the workers and their history of involvement with the child. A child may have had a history with several workers. The worker has an allocatedstartdate indicating when they began to work with the child.
  
  For my purpose, I need to return the workername and the allocatedstartdate of the worker involved with the child more recently before or at the time when the child began the course.
  
  I have partially accomplished this with the query below. However, due to the quality of the data, the child may not always have an affected worker (allocatedstartdate) earlier or equal to the start date for the course of the child. In this case, the query fails and does not return the child record, that it excludes from the dataset.
  
  Can anyone suggest a way to modify this query, so it acts like a left outer query and returns all the records in the child and null raising where they have no worker allocated beginning before or on the date of start of course?
  
  Thank you! :)
  

  select *
   from
  (
  select tc.childid, 
  tc.childname, 
  tc.enteredcourse, 
  tw.workername, 
  tw.allocatedstartdate, 
  row_number() over ( partition by tc.childid, tc.enteredcourse order by tw.allocatedstartdate desc) rn
  from tableofchildren tc, tableofworkers tw
  where tc.childid = tw.childid(+)
  and tc.enteredcourse >= nvl(tw.allocatedstartdate,add_months(sysdate,-10000))
  )
  where rn = 1 

  desired output
  

  CHILDID CHILDNAME            ENTEREDCOURSEDATE         WORKERNAME           ALLOCATEDSTARTDATE        
  ------- -------------------- ------------------------- -------------------- ------------------------- 
  C1000   Johnny Rotten        01-APR-11                 Mrs Gerbil           19-AUG-10                 
  C1256   Doris Dingle         12-AUG-03                 Mrs Pepsi            12-AUG-03                 
  C3466   Bonny Boy            25-MAR-11                 Mrs Jones            23-FEB-11                 
  C4567   Casper Ghost         21-MAR-09                                                                
  C1245   Doris Dingle         20-NOV-06             

  create the table tableofchildren
  (ChildID varchar (6))
  ChildName varchar (20),
  Date of EnteredCourse,
  Date of LeftCourse);
  
  insert into tableofchildren (ChildName, EnteredCourse, ChildID, LeftCourse) values ("C1000", "Johnny Rotten', to_date (' 01/04/2011 ',' dd/mm/rrrr'), to_date (' 23/05/2011 ',' dd/mm/rrrr'));
  insert into tableofchildren (ChildName, EnteredCourse, ChildID, LeftCourse) values ('C1256', 'Doris Dingle', to_date (' 12/08/2003 ',' dd/mm/rrrr'), to_date (' 16/09/2005 ',' dd/mm/rrrr'));
  insert into tableofchildren (ChildName, EnteredCourse, ChildID, LeftCourse) values ('C3466","Bonny Boy', to_date (' 25/03/2011 ',' dd/mm/rrrr'), to_date (' 28/03/2011 ',' dd/mm/rrrr'));
  insert into tableofchildren (ChildName, EnteredCourse, ChildID, LeftCourse) values ('C4567', 'Ghost Casper', to_date (' 21/03/2009 ',' dd/mm/rrrr'), to_date('22/04/2010','dd/mm/rrrr'));
  insert into tableofchildren (ChildName, EnteredCourse, ChildID, LeftCourse) values ('C1245', 'Doris Dingle', to_date (' 20/11/2006 ',' dd/mm/rrrr'), to_date (' 30/12/2008 ',' dd/mm/rrrr'));
  
  
  create the table tableofworkers
  (WorkerID, varchar (6))
  WorkerName varchar (20),
  Date of AllocatedStartDate,
  Date of AllocatedEndDate,
  ChildID varchar (6));
  
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3453', 'Ms. Whatever", to_date('12/05/2009','dd/mm/rrrr'), to_date ('2009-06-13', ' dd/mm/rrrr'),"C1000");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3442', 'Mr. Toad', to_date('14/07/2010','dd/mm/rrrr'), to_date (' 18/08/2010 ',' dd/mm/rrrr'), "C1000");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W14592', "Mrs gerbil', to_date (' 08/19/2010 ',' dd/mm/rrrr'), NULL,"C1000");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3442', 'Ms. Pepsi", to_date('12/08/2003','dd/mm/rrrr'), to_date (' 22/04/2007 ',' dd/mm/rrrr'),"C1256");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3490', 'Mr. tomato' to_date('12/03/2008','dd/mm/rrrr'), to_date (' 04/30/2009 ',' dd/mm/rrrr'), "C3466");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3453', 'Ms. Whatever", to_date('01/06/2009','dd/mm/rrrr'), to_date ('2010-04-30', ' mm/dd/rrrr'),"C3466");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3457', "Mrs Jones", to_date('23/02/2011','dd/mm/rrrr'), null, "C3466");
  insert into tableofworkers (WorkerID, WorkerName, AllocatedStartDate, AllocatedEndDate, ChildID) values ('W3453', 'Ms. Jobsworth", to_date('22/11/2006','dd/mm/rrrr'), null, 'C1245');
  
  
  create the table OutputWanted
  (ChildID varchar (6))
  ChildName varchar (20),
  Date of EnteredCourseDate,
  WorkerName varchar (20),
  Date of AllocatedStartDate);
  
  insert into OutputWanted (ChildID ChildName, EnteredCourseDate, WorkerName, AllocatedStartDate) values ("C1000", "Johnny Rotten', to_date (' 01/04/2011 ',' dd/mm/rrrr'),"Mrs gerbil", to_date('19/08/2010','dd/mm/rrrr'));
  insert into OutputWanted (ChildID ChildName, EnteredCourseDate, WorkerName, AllocatedStartDate) values ('C1256', 'Doris Dingle', to_date (' 12/08/2003 ',' dd/mm/rrrr'), "Ms. Pepsi", to_date('12/08/2003','dd/mm/rrrr'));
  insert into OutputWanted (ChildID ChildName, EnteredCourseDate, WorkerName, AllocatedStartDate) values ('C3466","Bonny Boy', to_date (' 25/03/2011 ',' dd/mm/rrrr'), "Mrs. Jones", to_date('23/02/2011','dd/mm/rrrr'));
  insert into OutputWanted (ChildID ChildName, EnteredCourseDate, WorkerName, AllocatedStartDate) values ('C4567', 'Casper the ghost', to_date (' 21/03/2009 ',' dd/mm/rrrr'), null, null);
  insert into OutputWanted (ChildID ChildName, EnteredCourseDate, WorkerName, AllocatedStartDate) values ('C1245', 'Doris Dingle', to_date (' 20/11/2006 ',' dd/mm/rrrr'), null, null);
  
  Published by: little Penguin November 21, 2011 07:03

  What something like that?

  SELECT childid
       , childname
       , enteredcourse
       , workername
       , allocatedstartdate
  FROM
  (
       SELECT toc.childid
            , toc.childname
            , toc.enteredcourse
            , tow.workername
            , tow.allocatedstartdate
            , ROW_NUMBER() OVER (PARTITION BY toc.childid ORDER BY tow.allocatedstartdate DESC) AS rn
       FROM   tableofchildren   toc
       LEFT JOIN tableofworkers tow ON tow.childid = toc.childid
                       AND toc.enteredcourse >= tow.allocatedstartdate
  )
  WHERE rn = 1
  

  Just note that you need a different RANK and DENSE_RANK analytical ranking function if there is a chance that many workers could be attributed to the children on the same allocatedstartdate.

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  Can you please help me in this.
  
  Concerning
  
  
  
  
  
  
  
  --------------------------------------------------------------------------------------------------
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       COMMIT;
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  Hello alllll
  
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  -----------------------------

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  Abdetu...

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  I'm not able to see the data variable at the procedure of debugging in Toad oracle 9.1.
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  Kind regards
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  Published by: prakash on May 30, 2011 01:37
  
  Published by: prakash on May 30, 2011 01:37
  
  Published by: prakash on May 30, 2011 01:37

  You might be aware toad is not a product of Oracle, so you need this post on the forums of quest, http://www.questsoftware.com

  ----------
  Sybrand Bakker
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• Getting error while inserting data from source to the target in the procedures?

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