Comparison of record in a cursor

Similar Questions

• Hi Expert, please tell me that how can I recover a recording of a cursor based on a condition

  There is a slider. Where can be one or more folder shows.

  I need to choose Next.

  1. If it is displays multiple records that choose this record where a field is showing not null

  2. If only one record in slider that choose this one (donot penalty on this field shows null or not null)

  Please tell me what I have to do it in.

  Thank you

  You do it in your query SELECT itself. CURSOR is nothing more than a set of instructions to execute the SQL statement. So, unless you get all records you do not know how many records in the cursor.

  Your selection would be something like that.

  Select

  BeO

  Select

  count (*) over() num_rows

  Of

  where

  )

  where num_rows = 1

  (or)

  Num_Rows > 1 and is not null

  )

• How to display in put it if no records found using cursors

  Hello

  I have 10 dept numbers like 100 101... 109, assume some deptno is not records, how can I show in put as "this deptno has documents please check.

  In the example below deptno 106 has not made, so how can I display in put it...

  DECLARE

  CURSOR c1 (dpno emp.deptno%TYPE)

  IS

  SELECT *.

  WCP

  WHERE deptno = 106;

  I have c1% ROWTYPE;

  dpno emp.deptno%TYPE;

  BEGIN

  OPEN c1 (dpno);

  LOOP

  FETCH c1 I-BEAM;

  OUTPUT WHEN c1% NOTFOUND;

  Dbms_output.put_line (c1% ROWCOUNT);

  end if;

  END LOOP;

  CLOSE c1;

  END;

  Thank you

  SQL > DECLARE
  2 CURSOR c1 (dpno emp.deptno%TYPE)
  3 EAST
  4. SELECT *.
  5 FROM emp
  6. WHERE deptno = 106;
  7 I have c1% ROWTYPE;
  8 dpno emp.deptno%TYPE.
  BEGIN 9
  10 c1 (dpno) OPEN;
  11 LOOP
  12 FETCH c1 I-BEAM;
  EXIT 13 WHEN c1% NOTFOUND;
  14 DBMS_OUTPUT.put_line (c1% ROWCOUNT);
  15 END LOOP;
  16
  If 17 nvl (c1% rowcount, 0) = 0 then
  18 dbms_output.put_line ("' no found rows");
  19 end if;
  20
  21 CLOSE c1;
  22 END;
  23.
  Not found line

  PL/SQL procedure successfully completed.

• Insert all records from a custom to a staging table.

  Hello

  Is it possible to insert all records of a cursor in a custom table using plsql instead of open a cursor, and each record in a loop?

  Thank you

  KK

  Use INSERT INTO your_staging_tbl... SELECT... Of your_cuatom_tbl

• SQL cursor problem

  Hi all
  
  I want to see the records in the table emp or a message if the emp table is empty, but under cursor shows the two,
  
  How can I solve this problem, please help.
  
  declare
  cursor emp_cur is
  Select * from emp;
  SheikYerbouti emp % rowtype;
  Start
  Open emp_cur;
  loop
  extract in SheikYerbouti emp_cur;
  If emp_cur % notfound then
  dbms_output.put_line ('there no record in the employee table');
  "exit";
  on the other
  dbms_output.put_line (emp_rec.empno |) » '|| emp_rec.ename);
  end if;
  end loop;
  close emp_cur;
  end;

  You should do something like this,

  not tested.

  DECLARE
     CURSOR emp_cur
     IS
        SELECT * FROM emp;
  
     emp_rec   emp%ROWTYPE;
     i         NUMBER := 0;
  BEGIN
  
     IF emp_cur%ISOPEN THEN
  
        CLOSE emp_cur;
  
     END IF;
  
     OPEN emp_cur;
  
     LOOP
  
        FETCH emp_cur INTO emp_rec;
  
        EXIT WHEN emp_cur%NOTFOUND;
  
        i     := i + 1;
  
        DBMS_OUTPUT.PUT_LINE (emp_rec.empno || ' ' || emp_rec.ename);
  
     END LOOP;
  
     IF i = 0 THEN
        DBMS_OUTPUT.PUT_LINE ('There is no record in employee table ');
     END IF;
  
     CLOSE emp_cur;
  
  END;
  

  Earlier you were printing that the records did not exist for when the extraction fails. Extraction fails at the end of the recording for any cursor. If you have found the two.
  Now, you print it out only if message I = 0, which means that the cursor did not return a single record.

  G.

• update of records

  How many lines can I update in a slider...
  
  in my app with more than 20,000 records...
  
  Please suggest
  
  Published by: OraclePLSQL on February 23, 2011 13:02

  OraclePLSQL wrote:
  can the number of records I update in a slider...

  Your question makes me feel that you don't have good understanding of what the cursor is.

  You are unable to update records in a cursor.

  A slider is just a work in memory space Oracle allocates for each process SQL statement. A slider is not all the data stored in it. There only the instructions that must be performed to extract the data from n6cessoires. Data will be available in the data buffer.

  When you issue command oracle OPEN allocates a workspace in memory for the cursor. When you RETRIEVE oracle executes the instructions and gets the data from the data buffer. And finally when you issue ABOUT oracle command releases the workspace of memory.

• Apply the function of a column of a Ref Cursor

  Hello
  
  I have a stored procedure that returns a refcursor. Is it possible to apply a function as for example SUBSTR LPAD and a custom on a column in the refcursor function returned? The problem is that I can't change the existing stored procedure and I was wondering if it would be possible to write somewhat a wrapper procedure (or an anonymous PL/SQL block) that would actually apply a scalar function and only then return the result to the client?
  
  Thanks and regards,
  Swear

  do you want after retrieve you records of Ref Cursor

  SQL> create or replace
    2  procedure rc_test (p_rc out sys_refcursor)
    3  is
    4    l_rc sys_refcursor;
    5  begin
    6     open l_rc for
    7     select dummy from dual;
    8     p_rc := l_rc;
    9  end;
   10  /
  
  Procedure created.
  
  SQL> declare
    2     r sys_refcursor;
    3     v varchar2(1);
    4  begin
    5     rc_test (r);
    6     fetch r into v;
    7     dbms_output.put_line (lower (v));
    8     close r;
    9  end;
   10  /
  x
  
  PL/SQL procedure successfully completed.
  

• How to create a record of pl/sql in oracle

  Oracle Forms 6i
  
  Hai All
  
  My question how to create a record with a cursor for loop.
  
  While I'm generating my if statement elsif only some of my files are not completely recovered, so I generate using the cursor for loop pls tell how to do
  
  My code is
  
  declare
  t_in dail_att.intime%type;
  t_out dail_att.intime%type;
  t_code dail_att.barcode%type;
  dail_att.attend_date%type V_DATE;
  
  cursor cur_test is
  Select respondent, outtime, barcode, dail_att attend_date;
  -in t_in, t_out, t_code, dail_att V_DATE;
  
  Start
  
  go_block ('TEST_SRI');
  PREMIER_ENREGISTREMENT;
  LOOP
  
  If: bartime between 0145 and then 0630
  Update dail_att set = outtime: bartime where barcode =: bar code
  and ATTEND_DATE =: BARDATE-1 and intimate are zero and outtime is not null;
  
  
  elsif: bartime between 0630 and 0900 or: bartime between 1130 and 1230 or
  : bartime between 1700 and 1800 and t_in is null then
  
  insert into dail_att(barcode,intime,attend_date)
  values(:Barcode,:Bartime,:bardate);
  
  elsif: bartime > 1645 and t_in is not null and t_out is null then
  Update dail_att set = outtime: bartime where barcode =: bar code
  and ATTEND_DATE =: BARDATE and respondent are not null and outtime has the value null.
  on the other
  
  Update dail_att set = outtime: bartime where barcode =: bar code
  and ATTEND_DATE =: BARDATE and respondent are not null and outtime has the value null.
  
  end if;
  WHEN THE OUTPUT: SYSTEM. LAST_RECORD = "TRUE" OR: BAR CODE IS NULL;
  NEXT_RECORD;
  END LOOP;
  forms_ddl ('commit');
  exception
  while others then
  forms_ddl ('rollback');
  message(SQLERRM|| dbms_error_Text);
  message(SQLERRM|| dbms_error_Text);
  End;
  
  
  Pls tell me if I need to create a folder or other...
  
  Concerning
  
  Srikkanth.M

  You can run a loop throgh query records of Pentecost an implicit cursor (which automatically manages the open cursor, fetch and next record):

    for rec in (select intime,outtime,barcode,attend_date from dail_att; )
    loop
  
         t_in :=rec.intime;
         t_out :=rec.outtime;
         t_code :=rec.barcode;
         t_date := attend_date;
  
      /*
  
           PUT YOUR CODE HERE ... (if ..then... elsif... logic)
           you can avoid setting variables 'cause you can directly use the implicit cursor variables: rec.intime etc.
  
       */
  
    end loop;
  END;
  

  In any case, I suggest you check the where the condition of your block... because if not all data is collected it should be a problem in your application... well, even the cursor (if it is based on the same query) will return less data than expected.

  Luca

• Invalid argument when you delete a record in doubles

  I use BerkeleyDB 4.7 on Gentoo 2.6.24 - r7.
  
  I have a database with keys duplicated which I access via a slider. When I try to delete one of the records duplicate the function c_del() returns the value 22 (EINVAL) which means a flag is not valid or the cursor is not initialized.
  
  According to the documentation, the indicator (the second argument) should be zero. So the problem must be with the cursor, but him still said that the slider is very well.
  
  I have distilled the problem of autonomous code below. You should be able to cut and paste into a file named deltest.c and compile it. The comments near the top shows how to compile and run it.
  
  The code may seem long, but it's really very simple. He wrote just three records with duplicate keys and reads them. He tries to remove the second disk.
  
  Help, please. I don't know what I'm missing.
  
  -Code starts here-
  
  #include < db.h >
  #include < stdio.h >
  #include < stdlib.h > to
  #include < string.h >
  
  #define FREE (V) if (V) {free (V); V = NULL ;}
  
  /*
  o deltest deltest.c-L /usr/local/BerkeleyDB.4.7 GCC - ldb
  mkdir deltest_env
  . / deltest
  RM deltest_env
  */
  main()
  {
  DB_ENV * envp;
  DB * dbp;
  DBC * cursor;
  DBT key;
  DBT data;
  DB_TXN * txn;
  
  int rc;
  
  /*-----------------------
  An open environment and the database; define indicators sorted duplicates
  */
  RC = db_env_create (& envp, 0);
  fprintf (stderr, "after the structure created environment: %d\n", rc);
  
  RC = envp-> open (envp, 'duptest_env', DB_CREATE |) DB_INIT_TXN | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_MPOOL, 0);
  fprintf (stderr, "after the opening of environment: %d\n", rc);
  
  RC = db_create (& dbp, envp, 0);
  fprintf (stderr, "after the created database structure: %d\n", rc);
  
  RC = dbp-> set_flags (dbp, DB_DUPSORT);
  fprintf (stderr, "after the series of flags: %d\n", rc);
  
  RC = dbp-> open (dbp, NULL, "deltest", NULL, DB_BTREE, DB_CREATE |) DB_AUTO_COMMIT, 0600);
  fprintf (stderr, "after the opening of database: %d\n", rc);
  
  /*-----------------------
  BEGIN transaction, write three records with the same key, commit
  */
  TXN = NULL;
  RC = envp-> txn_begin (envp, NULL, & txn, 0);
  fprintf (stderr, "after obtaining the transaction handle: %d\n", rc);
  
  Memset (& key, 0, sizeof (DBT));
  Memset (& data, 0, sizeof (DBT));
  
  Key.Data = strdup ("key");
  Key.Size = strlen (key.data);
  
  Data.Data = strdup ("some arbitrary data");
  Data.Size = strlen (data.data);
  
  RC = dbp-> put (dbp, txn, key, & data, DB_NODUPDATA);
  fprintf (stderr, "after the first written record: %d\n", rc);
  
  FREE (data.data)
  Memset (& data, 0, sizeof (DBT));
  Data.Data = strdup ("some other arbitrary data');
  Data.Size = strlen (data.data);
  
  RC = dbp-> put (dbp, txn, key, & data, DB_NODUPDATA);
  fprintf (stderr, "after the first record in double writes: %d\n", rc);
  
  FREE (data.data)
  Memset (& data, 0, sizeof (DBT));
  Data.Data = strdup ("Some data more arbitrary");
  Data.Size = strlen (data.data);
  
  RC = dbp-> put (dbp, txn, key, & data, DB_NODUPDATA);
  fprintf (stderr, "after the second written duplicate: %d\n", rc);
  
  RC = txn-> commit (txn, 0);
  fprintf (stderr, "after the transaction are committed: %d\n", rc);
  
  
  /*-----------------------
  Create a cursor and read back the three records.
  After reading the other, we try to remove it.
  Then we read for the fourth time just show that there is more no record.
  */
  RC = dbp-> cursor (dbp, NULL, & slider, 0);
  fprintf (stderr, "after the cursor created: %d\n", rc);
  
  FREE (key.data)
  FREE (data.data)
  Memset (& key, 0, sizeof (DBT));
  Key.Flags = DB_DBT_MALLOC;
  Memset (& data, 0, sizeof (DBT));
  Data.Flags = DB_DBT_MALLOC;
  
  RC =-> c_get cursor (cursor, & key and data, DB_NEXT);
  fprintf (stderr, "after the first EEG: %d - % s: %s\n", rc, key.data, data.data);
  
  FREE (data.data)
  FREE (key.data)
  Memset (& key, 0, sizeof (DBT));
  Key.Flags = DB_DBT_MALLOC;
  Memset (& data, 0, sizeof (DBT));
  Data.Flags = DB_DBT_MALLOC;
  
  RC =-> c_get cursor (cursor, & key and data, DB_NEXT);
  fprintf (stderr, "after the second get: %d - % s: %s\n", rc, key.data, data.data);
  
  / * Here, we try to delete the current record * /.
  RC = cursor-> c_del (cursor, 0);
  fprintf (stderr, "after delete: %d\n", rc);
  / * The return code is EINVAL (22), but I see nothing wrong with the arguments to the c_del() function * /.
  
  
  
  FREE (data.data)
  FREE (key.data)
  Memset (& key, 0, sizeof (DBT));
  Key.Flags = DB_DBT_MALLOC;
  Memset (& data, 0, sizeof (DBT));
  Data.Flags = DB_DBT_MALLOC;
  
  RC =-> c_get cursor (cursor, & key and data, DB_NEXT);
  fprintf (stderr, "after the third get: %d - % s: %s\n", rc, key.data, data.data);
  
  
  
  
  FREE (data.data)
  FREE (key.data)
  Memset (& key, 0, sizeof (DBT));
  Key.Flags = DB_DBT_MALLOC;
  Memset (& data, 0, sizeof (DBT));
  Data.Flags = DB_DBT_MALLOC;
  
  RC =-> c_get cursor (cursor, & key and data, DB_NEXT);
  fprintf (stderr, "after the fourth get: %d - % s: %s\n", rc, key.data, data.data);
  
  
  
  /*-------------------------------------------
  Close the cursor, data base and the environment
  */
  
  RC = cursor-> c_close (cursor);
  fprintf (stderr, "after the cursor close: %d\n", rc);
  
  RC = dbp-> close (dbp, 0);
  fprintf (stderr, "after the closing of the database: %d\n", rc);
  
  RC = envp-> close (envp, 0);
  fprintf (stderr, "after the closure of environment: %d\n", rc);
  
  Exit (0);
  }
  
  Published by: user8104091 on June 23, 2009 16:45

  Make a Berkeley DB error output? If this is not the case, try adding this call before opening the environment:

  envp->set_errfile(envp, stderr);
  

  Nevertheless, it seems that the problem is that you open the transactional database, then open the cursor without a transaction. Nontransactional cursors can read a transactional database (in isolation 'read committed'), but cannot perform updates. To update a transactional database, you must include a transaction.

  Here, you can open the cursor in a transaction that is configured with the DB_READ_COMMITTED flag to avoid read - lock the database entire when you scan through it.

  Kind regards
  Michael Cahill, Oracle Berkeley DB.

• Hotmail no longer works. I can open mail on yahoo, MSN premium, IE9, chrome, but firefox doesn't work anymore? I reinstalled the two and point of restoration, still broken?

  When I open the Fire Fox, click Hotmail, it opens the page with the open.cannot of the Inbox folder, click on anything? Cannot open the mail, or all records thereon, the cursor turns into a finger, but nothing opens or closes in all? reinstalled evrything, made a restore point. It works on all browsers, but firefox? use fire fox for years?

  I found the problem. It's the ad block plus 2.0. I just noticed that I was disabling each of them was. I noticed in Firefox that the envelopes have disappeared! That's why the post did not open, so in safe mode with disabled modules returned envelopes. then I restarted in reg mode and then turned off one-by-one. It was the adBlock Plus 2.0. Thank you for your advice. I would have never found. Thank you!

• Windows media player will not go back. How can I solve this problem?

  When I click back it does not.  I have to stop the player back to the beginning.

  Even if the ToolTip for the "Previous" said that holding down button will be re-wind, it doesn't seem to work.  Ironically, the fast forward function of the button 'Next' works.  To return to an earlier part of a recording, place the cursor on the edge of the progress bar ("Seek" should appear as a toll point) and click and drag the 'heel' (I don't know how it's called really, if anything.) back to the part you want to hear again.

• Tabular with nvl (max (col), 0) + 1

  Hi all

  I have a table block, I want to generate sequence for the key item numbers primary with nvl (max (col), 0) + 1

  I wrote this in a w-n-r-i trigger:

  "LAST_RECORD;

  SELECT NVL (MAX (ALERT_ID), 0) + 1 ON: EX_ALERT_SETUP. ALERT_ID EX_ALERT_SETUP; "

  but when I enter a new record with the cursor, it also gets the '1', body I have not saved the first '1 ',.

  How to deal with this situation?

  Thank you

  ORA-01400 wrote:

  Hi all

  I have a table block, I want to generate sequence for the key item numbers primary with nvl (max (col), 0) + 1

  I wrote this in a w-n-r-i trigger:

  "LAST_RECORD;

  SELECT NVL (MAX (ALERT_ID), 0) + 1 ON: EX_ALERT_SETUP. ALERT_ID EX_ALERT_SETUP; "

  but when I enter a new record with the cursor, it also gets the '1', body I have not saved the first '1 ',.

  How to deal with this situation?

  Thank you

  If it's a bad design, simply change the trigger as before Insert at the block level. Sequences of database is suggested.

  Hope this helps

  Hamid

• Exact divisions of 2000

  Hi guys,.

  I have some pl/SQL with a variable that moves through the records of a cursor and counts each record.  The cursor can go back and say 10000records (this can vary), but I want to do something specific each 2000th record.  Is there a way to check if my variable (which is incremented for each record in the slider) is a multiple of 2000 and cannot make my code.  For example, I want only my code to trigger the folder 2000,4000,6000,8000, 10000 etc.

  Thanks for any help I receive.

  
  

  Yes, you can use the mathematical function MOD to determine if you have reached a certain number of documents...

  for example, each 20 records...

  SQL > ed
  A written file afiedt.buf

  1 with t as (select rownum r of the double connection by rownum<=>
  2  --
  3 end of false documents
  4  --
  5. Select r
  6, case when mod (r 20) = 0 then 'Yes' null otherwise end as do_it
  7 * t
  SQL > /.

  R DO_
  ---------- ---
  1
  2
  3
  4
  5
  6
  7
  8
  9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20 Yes
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  Yes 40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  Yes 60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  Yes 80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
  Yes 100

  100 selected lines.

  SQL >

  What do you plan to do each 2000 records?  If it's a "commit", then you are definitely something wrong.

• Rows affected the dynamic SQL

  
  Hello

  VERSION - Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64 bit Production

  I want the number of rows affected by SQL dynamic, as shown below in the code where insert statement will be repeated for each record in the CURSOR.

  for rec in c1
  loop

  
  ABC: =' insert into test
  Select a.*,' | recomm. OP_ID |', "' | recomm. OP_NAME | " 'of BL_testI' | recomm. OP_ID: ' where START_DATE > = trunc(sysdate-2) and START_DATE < trunc(sysdate-1)';

  insert into str_test values (abc);

  immediately run abc;

  commit;
  
  When exit c1% notfound;
  end loop;

  In a normal query I would do it spontaneously SQL COUNT but cannot use it here.

  Thnx in advance

  Just use SQL % ROWCOUNT. What is the problem with that?

  Here is an example.

  SQL > declare
  l_sql 2 varchar2 (4000);
  3. start
  4 l_sql: = ' insert into t select * from emp';
  5. immediately run l_sql;
  6 dbms_output.put_line(l_sql ||) ': Number of inserted rows = ' | to_char(SQL%RowCount));)
  7 end;
  8.

  insert into t select * from EMP: number of inserted rows = 11

  PL/SQL procedure successfully completed.

  SQL >

• Button to block multi line

  Guys, I was wondering if someone could help me. I have a block record multi that shows about 10 lines on the screen of the user, I also added a button to this disc multi block so there are 10 buttons, each button next to the corresponding line. When I click the button, it processes the data of the current line and gives a result, however it doesn't seem to work like that. If I asked back and have 10 records displayed on the screen and then click on the button 5 down which must process the data for the 5th record down there actually processes the data for the first record where the cursor is currently located after the first request. Is there anyway that I can get the cursor to go into the folder that corresponds to the key? IE if I manually click a folder and then the buttons it treats all document the cursor, but I want it to automatically go to the record corresponding to the button when the button is pressed?
  
  Thanks for any help I receive.

  Set the navigable property to true for your button mouse.

  see you soon