Using the slider for and BULK COLLECT INTO

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• Select Insert and bulk collect into exadata

  Hi all

  We work in Oracle Exadata. I am new to oracle exacta.  We need to insert some 7.5 million records in our table. My manager who has worked at exadata asked me to insert, select to load the data of 7.5 million records from one table to another. He asked me to forget fired fresh concepts in bulk. I read exadata prefer basic set rank of basic techniques. Is in bulk collect not a technical set base? Select Insert or in bulk which is a better technique, gather to load records from one table to the other in oracle exadata? Please advise me on this issue

  Mantra of Tom apply for Exadata and, in its follow-up here:

  Ask Tom & quot; DML only insert & #x2F; Select or bulk collect... & quot;

• Using bulk collect into with assistance from the limit to avoid the TEMP tablespace error run out?

  Hi all

  I want to know if using bulk collect into limit will help to avoid the TEMP tablespace error run out.

  We use Oracle 11 g R1.

  I am assigned to a task of creating journal facilitated for all tables in a query of the APEX.

  I create procedures to execute some sql statements to create a DEC (Create table select), and then fires on these tables.

  We have about three tables with more than 26 million records.

  It seems very well running until we reached a table with more than 15 million record, we got an error says that Miss tablespace TEMP.

  I googled on this topic and retrieve the tips:

  Use NO LOG

  Parallel use

  BULK COLLECT INTO limited

  However, the questions for those above usually short-term memory rather than running out of TEMPORARY tablespace.

  I'm just a junior developer and does not have dealed with table more than 10 million documents at a time like this before.

  The database support is outsourced. If we try to keep it as minimal contact with the DBA as possible. My Manager asked me to find a solution without asking the administrator to extend the TEMP tablespace.

  I wrote a few BULK COLLECT INTO to insert about 300,000 like once on the development environment. It seems.

  But the code works only against a 000 4000 table of records. I am trying to add more data into the Test table, but yet again, we lack the tablespace on DEV (this time, it's a step a TEMP data)

  I'll give it a go against the table of 26 million records on the Production of this weekend. I just want to know if it is worth trying.

  Thanks for reading this.

  Ann

  I really need check that you did not have the sizes of huge line (like several K by rank), they are not too bad at all, which is good!

  A good rule of thumb to maximize the amount of limit clause, is to see how much memory you can afford to consume in the PGA (to avoid the number of calls to the extraction and forall section and therefore the context switches) and adjust the limit to be as close to that amount as possible.

  Use the routines below to check at what threshold value would be better suited for your system because it depends on your memory allocation and CPU consumption.  Flexibility, based on your limits of PGA, as lines of length vary, but this method will get a good order of magnitude.

  CREATE OR REPLACE PROCEDURE show_pga_memory (context_in IN VARCHAR2 DEFAULT NULL)

  IS

  l_memory NUMBER;

  BEGIN

  SELECT st. VALUE

  IN l_memory

  SYS.v_$ session se, SYS.v_$ sesstat st, SYS.v_$ statname nm

  WHERE se.audsid = USERENV ('SESSIONID')

  AND st.statistic # nm.statistic = #.

  AND themselves. SID = st. SID

  AND nm.NAME = 'pga session in memory. "

  Dbms_output.put_line (CASE

  WHEN context_in IS NULL

  THEN NULL

  ELSE context_in | ' - '

  END

  || 'Used in the session PGA memory ='

  || To_char (l_memory)

  );

  END show_pga_memory;

  DECLARE

  PROCEDURE fetch_all_rows (limit_in IN PLS_INTEGER)

  IS

  CURSOR source_cur

  IS

  SELECT *.

  FROM YOUR_TABLE;

  TYPE source_aat IS TABLE OF source_cur % ROWTYPE

  INDEX BY PLS_INTEGER;

  l_source source_aat;

  l_start PLS_INTEGER;

  l_end PLS_INTEGER;

  BEGIN

  DBMS_SESSION.free_unused_user_memory;

  show_pga_memory (limit_in |) "- BEFORE"); "."

  l_start: = DBMS_UTILITY.get_cpu_time;

  OPEN source_cur.

  LOOP

  EXTRACTION source_cur

  LOOSE COLLECTION l_source LIMITED limit_in;

  WHEN l_source EXIT. COUNT = 0;

  END LOOP;

  CLOSE Source_cur;

  l_end: = DBMS_UTILITY.get_cpu_time;

  Dbms_output.put_line (' elapsed time CPU for limit of ')

  || limit_in

  || ' = '

  || To_char (l_end - l_start)

  );

  show_pga_memory (limit_in |) "- AFTER");

  END fetch_all_rows;

  BEGIN

  fetch_all_rows (20000);

  fetch_all_rows (40000);

  fetch_all_rows (60000);

  fetch_all_rows (80000);

  fetch_all_rows (100000);

  fetch_all_rows (150000);

  fetch_all_rows (250000);

  -etc.

  END;

• I just started to use the Muse for our design agency and learn to build us a new site, I managed to create a basic Viewer that contains sliding images based on what I have to do now is have a window POP that goes into the details of the pr

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  David

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  You have disabled things like Hibernate and hybrid sleep, etc. on the power options screen in Windows?

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• When to use the cursor for loop and the cursor (open, fetch, close)

  Hello world
  I have a small doubt about when to use the cursor for loop and when to use the cursor for loop and the cursor (open, fetch, close).
  Well, I'm not the difference between implicit and explicit cursor. So please tell me how I got to know, what to use and when?
  
  
  
  
  Kind regards
  BS2012
  
  Published by: BS2012 on January 29, 2013 12:15

  All SQLs are analyzed, stored and executed as cursors. Thus, you will always use a cursor.

  The problem is that languages, such as PL/SQL, provide different interfaces to interact with the SQL cursor. As the ref, the slider interface, the interface DBMS_SQL slider interface and so on.

  Each of these interfaces offers different features. For example, using the interface DBMS_SQL allows binding dynamics and dynamic recovery. The Ref Cursor interface allows your code PL/SQL pass a handle to a reference pointing to the SQL cursor, to an external client. Etc.

  The fundamental reason for the use of an explicit cursor interface is mainly that you own and manage bulk made extraction output provided by PL/SQL cursor.

  With a cursor FOR , the motor loop of PL/SQL optimize the loop by extracting block a 100 lines both. However, you cannot access this collection in bulk directly inside the loop.

  With an explicit cursor interface, you specify the size of the extraction in bulk via the clause LIMIT , and you set the variable of collection to use. This allows you to use the collection directly variable inside the loop.

  However, the need to do - code manually in bulk collection - rarely occur in the daily programs in PL/SQL. A line of treatment is both slow and not well fits. And even if your bulk code collects lines, these lines must still be processed one at a time in your code. It is much more efficient and scalable rather write SQL code, and make the engine SQL the line of treatment for you.

• How to pick up the procedure and the slider for oracle procedure

  How to pick up the procedure and the slider for that?
  
  SELECT aktualne_notowania.aspolka_id,
  aktualne_notowania.Notowanie * spolki.ilosc_akcji as total
  To aktualne_notowania, spolki
  WHERE aktualne_notowania.aspolka_id = spolki.spolka_id;
  something like
  
  create or replcae procedure test_proc() is
  v_es_id polski_table.id%type;
  number of v_mult_val;
  
  cursor c1 is
  Select q.id, (q.quantity * p.price) as total_amount
  the quantity q
  price p
  where q.itemId = p.itemId
  
  Start
  
  Open c1
  loop
  Fetch c1 into v_es_id, v_mult_val;
  When exit c1% notfound;
  
  Update table_target
  total value: = v_mult_val
  where id: = v_es_id;
  
  end

  Something like this:

  merge into table_target t
  using (select select q.id, (q.quantity*p.price) as total_amount
         from   quantity q
              , price p
         where q.itemId = p.itemId
        ) s
  on    (t.id = s.id)
  when  matched then update
        set t.total = s.total_amount;
  

• Bulk collect into the record type

  Sorry for the stupid question - I do something really simple wrong here, but can not understand. I want to choose a few rows from a table in a cursor, then in bulk it collect in a folder. I'll possibly extended the record to include additional fields that I will select return of functions, but I can't get this simple test case to run...
  
  PLS-00497 is the main error.
  
  Thanks in advance.

  create table test (
  id number primary key,
  val varchar2(20),
  something_else varchar2(20));
  
  insert into test (id, val,something_else) values (1,'test1','else');
  insert into test (id, val,something_else) values (2,'test2','else');
  insert into test (id, val,something_else) values (3,'test3','else');
  insert into test (id, val,something_else) values (4,'test4','else');
  
  commit;
  
  SQL> declare
    2   cursor test_cur is
    3   (select id, val
    4   from test);
    5
    6   type test_rt is record (
    7     id   test.id%type,
    8     val      test.val%type);
    9
   10   test_rec test_rt;
   11
   12  begin
   13    open test_cur;
   14    loop
   15      fetch test_cur bulk collect into test_rec limit 10;
   16       null;
   17     exit when test_rec.count = 0;
   18    end loop;
   19    close test_cur;
   20  end;
   21  /
      fetch test_cur bulk collect into test_rec limit 10;
                                       *
  ERROR at line 15:
  ORA-06550: line 15, column 38:
  PLS-00497: cannot mix between single row and multi-row (BULK) in INTO list
  ORA-06550: line 17, column 21:
  PLS-00302: component 'COUNT' must be declared
  ORA-06550: line 17, column 2:
  PL/SQL: Statement ignored

  You must declare an array based on your registration type.

  DECLARE
     CURSOR test_cur
     IS
           SELECT
              id,
              val
           FROM
              test
     ;
  type test_rt
  IS
     record
     (
        id test.id%type,
        val test.val%type);
     type test_rec_arr is table of test_rt index by pls_integer;
     test_rec test_rec_arr;
  BEGIN
     OPEN test_cur;
     LOOP
        FETCH
           test_cur bulk collect
        INTO
           test_rec limit 10;
        NULL;
        EXIT
     WHEN test_rec.count = 0;
     END LOOP;
     CLOSE test_cur;
  END;
   31  /
  
  PL/SQL procedure successfully completed.
  
  Elapsed: 00:00:00.06
  ME_XE?
  

  Notice that the difference is...

     type test_rec_arr is table of test_rt index by pls_integer;
     test_rec test_rec_arr;
  

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