REF CURSOR question

Similar Questions

• PL/SQL - Call Out Ref Cursor returned by a stored procedure

  Hello

  I am creating a procedure where a Ref Cursor is defined as an OUT parameter, my question is how to shout that the Ref Cursor when I run for example here is how I want to call my EXEC sql command:

  EXEC film_not_in_stock (2,2,vcur);

  Here is the procedure:

  CREATE OR REPLACE PROCEDURE film_not_in_stock (p_film_id in NUMBER, p_store_id number, vcur ON SYS_REFCURSOR)

  IS

  News sys_refcursor;

  v_cur inventory.inventory_id%TYPE--ou is the same type of column inventory_id

  v_cur sys_refcursor;

  BEGIN

  Heart OPEN to SELECT inventory_id

  INVENTORY

  WHERE film_id = p_film_id

  AND store_id = p_store_id

  AND inventory_id NOT IN (SELECT inventory_in_stock (inventory_id) FROM dual);

  News of FETCH in v_cur;

  OUTPUT WHEN heart % NOTFOUND;

  END;

  /

  I know there are typos in the procedure, you will appreciate if you can help me to put it right.

  Thank you very much!

  Tonya.

  In fact, based on your previous post, function inventory_in_stock returns 0 or 1. If so, there are:

  CREATE OR REPLACE

  PROCEDURE film_not_in_stock)

  p_film_id in NUMBERS

  p_store_id in NUMBERS

  p_cur ON SYS_REFCURSOR

  )

  IS

  News sys_refcursor;

  v_cur inventory.inventory_id%TYPE--ou is the same type of column inventory_id

  v_cur sys_refcursor;

  BEGIN

  OPEN p_cur

  FOR

  SELECT inventory_id

  INVENTORY

  WHERE film_id = p_film_id

  AND store_id = p_store_id

  AND inventory_in_stock (inventory_id) = 0;

  News of FETCH in v_cur;

  OUTPUT WHEN heart % NOTFOUND;

  END;

  /

  SY.

• Ref Cursor statement

  TYPE V_TYPE IS REF CURSOR
  
  
  V_CUR V_TYPE;
  
  
  is that this decalrion is correct or not?
  
  How do decalre

  user10447332 wrote:
  TYPE V_TYPE IS REF CURSOR

  V_CUR V_TYPE;

  is that this decalrion is correct or not?

  Not. There is no need of a type defined by the user (unless the definition of type strong ref Cursor - use that is questionable in PL/SQL). Use rather SYS_REFCURSOR .

  For example

  --// run in SQL*Plus
  
  --// define a bind variable
  var c refcursor
  
  declare
    myCursor sys_refcursor;
  begin
    --// create the ref cursor
    open myCursor for select * from user_objects order by 1;
  
    --// pass the ref cursor handle to the client
    :c := myCursor;
  end;
  /
  
  --// consume the cursor output in the client
  print c
  

• Ref cursor - result series is not known

  Hi all
  
  My requirement is as below
  (1) the query to run is stored in a table because the query vary each time
  (2) execution of the query and treat it
  
  As the query could be of any table that I'm stuck on go get the query in a variable and treatment. Pls see my example below
  
  
  CUR cursor is
  Select sql_stmt sql1 - extract the sql to run
  RTA;
  
  Open p_cursor for sql1; -Open the ref cursor
  loop
  look for p_cursor in? * -as the result set does not know initially how to declare a variable for it *.
  output p_cursor % notfound;
  -the results of the process
  end loop;
  
  Help, please. Hope I'm clear with my question. If not, please let me know

  Oracle says:
  Hi all

  My requirement is as below
  (1) the query to run is stored in a table because the query vary each time
  (2) execution of the query and treat it

  As the query could be of any table that I'm stuck on go get the query in a variable and treatment. Pls see my example below

  CUR cursor is
  Select sql_stmt sql1 - extract the sql to run
  RTA;

  Open p_cursor for sql1; -Open the ref cursor
  loop
  look for p_cursor in? * -as the result set does not know initially how to declare a variable for it *.
  output p_cursor % notfound;
  -the results of the process
  end loop;

  Help, please. Hope I'm clear with my question. If not, please let me know

  Storage of queries in a table? This looks like a bad design, not to mention the possibility of SQL injection and causing ALL of your code to be written to be dynamic, where a nightmare to debug. Ouch!

  You will not be able to do with a ref cursor if you don't know what to expect as the columns returned.
  You can use the DBMS_SQL package and describe the query so that you can find on the columns and data types in the results... example of this package... (my example standard production CSV files)...

  -----

  As user sys:

  CREATE OR REPLACE DIRECTORY TEST_DIR AS '\tmp\myfiles'
  /
  GRANT READ, WRITE ON DIRECTORY TEST_DIR TO myuser
  /
  

  As myuser:

  CREATE OR REPLACE PROCEDURE run_query(p_sql IN VARCHAR2
                                       ,p_dir IN VARCHAR2
                                       ,p_header_file IN VARCHAR2
                                       ,p_data_file IN VARCHAR2 := NULL) IS
    v_finaltxt  VARCHAR2(4000);
    v_v_val     VARCHAR2(4000);
    v_n_val     NUMBER;
    v_d_val     DATE;
    v_ret       NUMBER;
    c           NUMBER;
    d           NUMBER;
    col_cnt     INTEGER;
    f           BOOLEAN;
    rec_tab     DBMS_SQL.DESC_TAB;
    col_num     NUMBER;
    v_fh        UTL_FILE.FILE_TYPE;
    v_samefile  BOOLEAN := (NVL(p_data_file,p_header_file) = p_header_file);
  BEGIN
    c := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(c, p_sql, DBMS_SQL.NATIVE);
    d := DBMS_SQL.EXECUTE(c);
    DBMS_SQL.DESCRIBE_COLUMNS(c, col_cnt, rec_tab);
    FOR j in 1..col_cnt
    LOOP
      CASE rec_tab(j).col_type
        WHEN 1 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000);
        WHEN 2 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_n_val);
        WHEN 12 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_d_val);
      ELSE
        DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000);
      END CASE;
    END LOOP;
    -- This part outputs the HEADER
    v_fh := UTL_FILE.FOPEN(upper(p_dir),p_header_file,'w',32767);
    FOR j in 1..col_cnt
    LOOP
      v_finaltxt := ltrim(v_finaltxt||','||lower(rec_tab(j).col_name),',');
    END LOOP;
    --  DBMS_OUTPUT.PUT_LINE(v_finaltxt);
    UTL_FILE.PUT_LINE(v_fh, v_finaltxt);
    IF NOT v_samefile THEN
      UTL_FILE.FCLOSE(v_fh);
    END IF;
    --
    -- This part outputs the DATA
    IF NOT v_samefile THEN
      v_fh := UTL_FILE.FOPEN(upper(p_dir),p_data_file,'w',32767);
    END IF;
    LOOP
      v_ret := DBMS_SQL.FETCH_ROWS(c);
      EXIT WHEN v_ret = 0;
      v_finaltxt := NULL;
      FOR j in 1..col_cnt
      LOOP
        CASE rec_tab(j).col_type
          WHEN 1 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
                      v_finaltxt := ltrim(v_finaltxt||',"'||v_v_val||'"',',');
          WHEN 2 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_n_val);
                      v_finaltxt := ltrim(v_finaltxt||','||v_n_val,',');
          WHEN 12 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_d_val);
                      v_finaltxt := ltrim(v_finaltxt||','||to_char(v_d_val,'DD/MM/YYYY HH24:MI:SS'),',');
        ELSE
          v_finaltxt := ltrim(v_finaltxt||',"'||v_v_val||'"',',');
        END CASE;
      END LOOP;
    --  DBMS_OUTPUT.PUT_LINE(v_finaltxt);
      UTL_FILE.PUT_LINE(v_fh, v_finaltxt);
    END LOOP;
    UTL_FILE.FCLOSE(v_fh);
    DBMS_SQL.CLOSE_CURSOR(c);
  END;
  

  This allows the header line and the data to write into files separate if necessary.

  for example

  SQL> exec run_query('select * from emp','TEST_DIR','output.txt');
  
  PL/SQL procedure successfully completed.
  

  Output.txt file contains:

  empno,ename,job,mgr,hiredate,sal,comm,deptno
  7369,"SMITH","CLERK",7902,17/12/1980 00:00:00,800,,20
  7499,"ALLEN","SALESMAN",7698,20/02/1981 00:00:00,1600,300,30
  7521,"WARD","SALESMAN",7698,22/02/1981 00:00:00,1250,500,30
  7566,"JONES","MANAGER",7839,02/04/1981 00:00:00,2975,,20
  7654,"MARTIN","SALESMAN",7698,28/09/1981 00:00:00,1250,1400,30
  7698,"BLAKE","MANAGER",7839,01/05/1981 00:00:00,2850,,30
  7782,"CLARK","MANAGER",7839,09/06/1981 00:00:00,2450,,10
  7788,"SCOTT","ANALYST",7566,19/04/1987 00:00:00,3000,,20
  7839,"KING","PRESIDENT",,17/11/1981 00:00:00,5000,,10
  7844,"TURNER","SALESMAN",7698,08/09/1981 00:00:00,1500,0,30
  7876,"ADAMS","CLERK",7788,23/05/1987 00:00:00,1100,,20
  7900,"JAMES","CLERK",7698,03/12/1981 00:00:00,950,,30
  7902,"FORD","ANALYST",7566,03/12/1981 00:00:00,3000,,20
  7934,"MILLER","CLERK",7782,23/01/1982 00:00:00,1300,,10
  

  The procedure allows for the header and the data to separate files if necessary. Just by specifying the file name "header" will put the header and the data in a single file.

  Adapt to the exit of styles and different types of data are needed.

• Packages and poorly Ref Cursor

  SQL Server Developer, I fight with Oracle to say the least. I fought with the poor performance of the extraction of data from the database, but also a multitude of other things. The last number I have is a stored procedure in a package that does not work when run from my .NET code. I have many other packages and stored procedures that are working, but this one is a failure. I don't get any errors, just no data when I should be.
  
  I would run the toad package and see if it is the stored Proc and packaging, or if there is a problem in my .NET code. My stored procedure accepts a single PARAMETER of type integer, and has two parameters SYS_RefCursor OUT. My SQL uses the parameter (ID field) to select from a table. If I run the select SQL by itself with the hardcoded value ID, it works fine. I can run too where it uses the SQL for open cursors and inserts the data but I can't determine if it worked.
  
  So, my questions are the following:
  
  Can I select a Ref_Cursor? I'm trying to do something like that.

  results_cursor SYS_REFCURSOR;
  
  OPEN results_cursor FOR
     SELECT * FROM Person;
  
  SELECT * FROM results_cursor;

  If I could get the 1st issue a response, I can keep up with my next question.
  
  Thanks in advance.
  Jeff

  Hello

  I don't see an issue of .NET at this point, so you can have the best chance to post in the forum PLSQL, as it seems that if you need help writing a procedure, rather than interacting with a procedure well known in .NET:
  SQL and PL/SQL

  I'm not clear on your question though. Yes, you can read from a slider ref, and you do it by getting him.

  SQL > set serveroutput on

  SQL > declare
  Ref1 2 sys_refcursor;
  3 rec1 emp % rowtype;
  Number 4 NTC;
  5. start
  6. open ref1 for select * from emp;
  7 LOOP
  8 FETCH INTO rec1 ref1;
  9 OUTPUT WHEN ref1% NOTFOUND;
  10 DBMS_OUTPUT. Put_line (' name = ' | rec1.ename);
  11 END OF LOOP;
  12 end;
  13.
  Name = SMITH
  Name = ALLEN
  Name = WARD
  Name = JONES
  Name = MARTIN
  Name = BLAKE
  Name = CLARK
  Name = SCOTT
  Name = KING
  Name = TURNER
  Name = ADAMS
  Name = JAMES
  Name = FORD
  Name = MILLER

  PL/SQL procedure successfully completed.

  SQL >

  Maybe if clarify what you are trying to do or accomplish in "selecting from a ref cursor" it would be useful.

  Greg

• Return of the ref cursor of procedure where the cursor is defined in the specification

  Hello
  
  Here's pseudo-code
  
  create or replace package test
  as
  cursor c_emp (number cv_emp_id)
  is
  Select emp_name emp where emp_id = cv_emp_id;
  
  type ref_c is ref cursor;
  
  function get_emp_name (number p_emp_id) return ref_c;
  end test;
  /
  
  
  create or replace the test physics package
  as
  ref_c function get_emp_name (number p_emp_id)
  is
  ret_val ref_c;
  Start
  Open c_emp (p_emp_id);
  ret_val: = c_emp;
  return ret_val;
  
  end get_emp_name;
  end test;
  /
  
  Returns me "PLS-00382: expression is of the wrong type. I tried to use a strongly typed Ref cursor based on the cursor, but nothing helped.
  
  Clearly, I understand something... and if I can't assign as ' ret_val: = c_emp "and if there is another key way it so please let me know.
  
  Thank you
  
  Ralph
  
  Published by: user13024707 on May 5, 2010 04:43

  user13024707 wrote:
  Clearly the point of my question is being missed.

  Or maybe the question is not been clearly asked. ;)

  I want to set the cursor in the PACKAGE SPECIFICATION, and not in the package body. The issue of the bind variable and the string is neither here nor there because I pass parameters to the cursor.

  What you ask is to use a PL/SQL cursor (defined in the specifications of the package or elsewhere) and that convert a Ref Cursor. N ° cannot be done.
  PL/SQL cursors should be used in the PL/SQL code. REF CURSOR is primary used to pass back a reference to a cursor (and all queries are cursors) to a layer of application outside of PL/SQL for example .net, java, etc.. Once you start using the ref Cursor only really, you have the choice of opening it based on a (dynamic) or a fixed query string as in the examples given. You cannot open a cursor of a PL/SQL cursor definition Ref.

  The difference is that when you do:

    CURSOR cur_mycursor IS
      SELECT ...
  

  you declare a cursor in pl/sql definition, not actually a slider itself. The cursor itself is created when you issue an OPENING or a statement FOR etc. So a Ref Cursor (reference to a slider) cannot refer to the definition of the cursor because it is only a definition, not a cursor (i.e. it has not been sent engine sql and instantiated at that time here). Instead the Ref Cursor must reference a cursor (query), itself, and that may be presented as a string or as the query itself that is issued against the sql engine and then the ref cursor points

  Thus, slider ref and PL/SQL cursors are different concepts, both designed to manage cursors in a slightly different way of programming. You cannot mix them.

• How to run the packaged procedure with Ref Cursor

  Hello.
  The question may be very simple for you... but I was confused how to run
  I have the following package

  CREATE OR REPLACE PACKAGE CURSPKG AS 
      TYPE T_CURSOR IS REF CURSOR; 
      PROCEDURE OPEN_ONE_CURSOR (N_EMPNO IN NUMBER, 
                                 IO_CURSOR IN OUT T_CURSOR); 
      
  END CURSPKG;
  / 
  
  
  CREATE OR REPLACE PACKAGE BODY CURSPKG AS
      PROCEDURE OPEN_ONE_CURSOR (N_EMPNO IN NUMBER,
                                 IO_CURSOR IN OUT T_CURSOR)
      IS 
          V_CURSOR T_CURSOR; 
      BEGIN 
          IF N_EMPNO <> 0 
          THEN
               OPEN V_CURSOR FOR 
               SELECT EMP.EMPNO, EMP.ENAME, DEPT.DEPTNO, DEPT.DNAME 
                    FROM EMP, DEPT 
                    WHERE EMP.DEPTNO = DEPT.DEPTNO 
                    AND EMP.EMPNO = N_EMPNO;
  
          ELSE 
               OPEN V_CURSOR FOR 
               SELECT EMP.EMPNO, EMP.ENAME, DEPT.DEPTNO, DEPT.DNAME 
                    FROM EMP, DEPT 
                    WHERE EMP.DEPTNO = DEPT.DEPTNO;
  
          END IF;
          IO_CURSOR := V_CURSOR; 
      END OPEN_ONE_CURSOR; 
  
      
  END CURSPKG;
  /

  But I want to test (run) this procedure...
  But confused how to have Ref Cursor
  Could you help me in this...
  
  Thank you

  You must declare a variable of type T_CURSOR and pass it to the procedure like this.

  declare
    lOutCursor CURSPKG.T_CURSOR;
  begin
    CURSPKG.OPEN_ONE_CURSOR(, lOutCursor);
  end;
  

• REF CURSOR output and race update

  Hello
  
  I have a process where I need to make changes in quantity for the products. I want to these products and the quantity of output in a c# application and also update my table of inventory with the new values.
  
  My question is what is the best way to have a stored procedure out a REF CURSOR (for the purposes of c#) and use the same data that came out in the REF CURSOR to update my table of inventory?
  
  I have this:
  
  -USE IT TO GET MY PRODUCTS-
  PROCEDURE sp_get_products)
  r_products ON SYS_REFCURSOR
  )
  
  IS
  
  BEGIN
  
  Select ProductID, InStock
  Products
  
  END sp_get_products;
  
  
  -USE CE TO OUTPUT REF CURSOR and run - UPDATE
  PROCEDURE sp_get_ref_products)
  r_ref_products ON SYS_REFCURSOR
  )
  
  IS
  
  type ProductID is the Products.ProductID%type table;
  QTY type is table of the Products.QTY%type;
  
  l_ProductID ProductID;
  l_QTY QTY;
  
  BEGIN
  sp_get_products (r_ref_products);
  
  Get the r_ref_products COLLECT in BULK IN l_ProductID, l_QTY;
  ForAll indx l_ProductID.first... l_ProductID.Last
  Update product p
  Set p.QTY = l_QTY (indx)
  Where p.ProductID = l_ProductID (indx);
  
  COMMIT;
  
  
  END sp_get_ref_products;

  Maybe you're not understanding what is a Ref Cursor. It does not store a result set.

  Take a read of this thread:

  [PL/SQL 101: understanding Ref Cursor | http://forums.oracle.com/forums/thread.jspa?threadID=886365&tstart=0]

• 2 running, 1 inside and 1 sql external, dynamic queries using loops and ref Cursor

  Hi all
  
  I'm under Oracle 10.2.0.2. I'm currently building dynamic sql using external and internal queries ref Cursor. Queries make use of user selected lists of ID, which is stored in a table in memory at run time. My example is as follows. From a list of book_publication_id on a web page, the user selects several books. The same user selects then several maps from a list of map_publication_id on the same web page. A book contains several maps and some of these cards will appear in more than one book (aka many many relationships).
  
  This should then ask the following output to a new web page:

  Outer loop:  Display book details for book_publication_id 230
    Inner loop:  Display 1st map details for map_publication_id 340
    Inner loop:  Display 2nd map details for map_publication_id 346
    Inner loop:  Display 3rd map details for map_publication_id 350
  Outer loop:  Display book details for book_publication_id 240
    Inner loop:  Display 1st map details for map_publication_id 346
    Inner loop:  Display 2nd map details for map_publication_id 375
  Outer loop:  Display book details for id 255
  and so on.

  In the example above, the outer loop displays the details of the book for book_publication_id 230 and the inner loop displays all the users selected the maps in book_publication_id 230. Then, it moves on the details of the book for book_publication_id 240 and done the same thing again. Similar in some ways to how break would work in SQL * Plus, even if the table is built like an HTML, the book details must be on a separate line for the card details. However I don't know how I would want it to work.
  
  So far, using loops, I could not show all the details of card for each different book_publication_id, after the details of the book for only 1 book_publication_id are displayed each time. If a loop in a loop. I hope that makes sense. I think this is my internal request that it be built differently. My code for this part of the program, which is currently wrong, is as follows:

  --Global variable section contains:
  var_user_chosen_map_list_ids VARCHAR2(32767);
  var_details VARCHAR2(32767);
  ......
  PROCEDURE PROCMAPSEARCH (par_user_chosen_map_list_ids PKG_ARR_MAPS.ARR_MAP_LIST)
  IS
  BEGIN
  FOR rec_user_chosen_map_list_ids IN 1 .. par_user_chosen_map_list_ids.count
  LOOP
     var_user_chosen_map_list_ids := var_user_chosen_map_list_ids || 
     '''' || 
     par_user_chosen_map_list_ids(rec_user_chosen_map_list_ids) || 
     ''',' ;
  END LOOP;
   var_user_chosen_map_list_ids := substr(var_user_chosen_map_list_ids,
                                          1, 
                                          length(var_user_chosen_map_list_ids)-1);
  var_details := FUNCMAPDATAFIND (var_user_chosen_map_list_ids);
  htp.print(var_details);
  END PROCMAPSEARCH;
  FUNCTION FUNCMAPDETAILS (par_user_chosen_map_list_ids IN VARCHAR2(32767)
  RETURN VARCHAR2
  AS
  TYPE cur_type_map IS REF CURSOR;
  cur_book_search cur_type_map;
  var_book_date NUMBER(4);
  var_book_title VARCHAR2(32767);
  cur_map_search cur_type_map;
  var_map_date NUMBER(4);
  var_map_title VARCHAR2(32767);
  begin:
  OPEN cur_book_search FOR
  'SELECT BI.book_date,
          BT.book_title
   FROM   BOOK_INFO BI,
          BOOK_TITLE BT,
          TABLE (sys.dbms_debug_vc2coll(' || par_user_chosen_book_list_ids || ')) BL_1
   WHERE BI.book_title_id = BT.book_title_id
   AND BI.book_publication_id = BL_1.column_value';
  OPEN cur_map_search FOR
  'SELECT MI.map_date,
         MT.map_title
  FROM map_info MI,
       map_title MT,
       TABLE (sys.dbms_debug_vc2coll(' || par_user_chosen_book_list_ids || ')) BL_2
       TABLE (sys.dbms_debug_vc2coll(' || par_user_chosen_map_list_ids || ')) ML
  WHERE MI.map_title_id = MT.map_title_id
  AND BI.book_publication_id = BL_2.column_value
  AND BI.book_publication_id = MI.pub_publication_id
  AND MI.map_publication_id = ML.column_value';
  LOOP
  LOOP
  FETCH cur_map_compare INTO
  var_book_date,
  var_book_title;
  var_details
  var_details := var_details || 'Book date: '||
                      var_book_date ||
                      'Book title: ' ||
                      var_book_title;
  FETCH cur_map_compare INTO
  var_map_date,
  var_map_title;
  var_details := var_details || 'Map date: '||
                      var_map_date ||
                      'Map title: ' ||
                      var_map_title
  EXIT WHEN cur_book_compare%NOTFOUND;
  END LOOP;
  EXIT WHEN cur_map_compare%NOTFOUND;
  END LOOP;
  RETURN var_details;
  END FUNCMAPDETAILS;

  If anyone has any ideas or suggestions, I would be grateful. It is an extension of my previous code, I posted a question recently. As I am working and learning a step at a time, I left this idea in my previous question, that I had to make sure I knew that first.
  
  Kind regards
  
  Tim

  Using dynamic SQL

  declare
    dd sys_refcursor;
    ee sys_refcursor;
    d dept%rowtype ;
    e emp%rowtype ;
  begin
  open dd for 'select * from dept' ;
  loop
  fetch dd into d ;
  exit when dd%notfound ;
  dbms_output.put_line('Department:'||d.dname);
    open ee for 'select * from emp where deptno='||d.deptno ;
    loop
    fetch ee into e ;
    exit when ee%notfound ;
    dbms_output.put_line('..Employee:'||e.empno||':'||e.ename);
    end loop;
  end loop ;
  end ;
  /
  Department:ACCOUNTING
  ..Employee:7782:CLARK
  ..Employee:7839:KING
  ..Employee:7934:MILLER
  Department:RESEARCH
  ..Employee:7369:SMITH
  ..Employee:7566:JONES
  ..Employee:7788:SCOTT
  ..Employee:7876:ADAMS
  ..Employee:7902:FORD
  Department:SALES
  ..Employee:7499:ALLEN
  ..Employee:7521:WARD
  ..Employee:7654:MARTIN
  ..Employee:7698:BLAKE
  ..Employee:7844:TURNER
  ..Employee:7900:JAMES
  Department:OPERATIONS
  
  PL/SQL procedure successfully completed.
  

  HTH

  SS

• Call a procedure stored via JDBC with a REF CURSOR * input variable.

  Hello
  
  S/n of my client has provided me with a stored procedure that I need to call to get information about products prices. Something along the lines of:
  
  some_package.getPrices (products IN OUT csr_type);
  
  where csr_type represents a REF CURSOR. This cursor has a product ID column and a price column. The plan is to move the cursor with the populated product id column and have the routine decorate the slider with the prices.
  
  The setting in this plan is that it seems that it is not possible to go from JDBC REF CURSOR in . However, I'm not sure, since I can only find throw comments on various forums (e.g. http://www.orafaq.com/forum/t/35088/0/), without any reference. If I go back to the client and tell them that their idea will not work, I prefer to be able to point them to a documentation somewhere
  
  So I guess my questions are:
  
  1. it is indeed impossible to pass a REF CURSOR type as a variable input on JDBC to a stored procedure?
  
  2. is there information I can do about my client?
  
  3. am I on the right track thinking I need to go down the path of an array of objects?
  
  Thank you very much to anyone who can help
  Peter Svehla.

  Hi Peter,.

  I see it, missed that you actually want to pass in a list of products. Don't think that you can do this with the current procedure. A slider is just a pointer to a result set.
  How the result set is created and what it looks like, is determined when the cursor is opened.

  What does this procedure with the cursor? -It does not have some OPEN TO ; inside?

  Or, perhaps, you are supposed to send in an open cursor (does not much sense to me)?

  Concerning
  Peter

• REP-0737: must be a function of return type 'ref cursor.

  Hi all

  I have create a ref cursor query in reports 10 g. But it is giving error REP-0737: must be a function of return type 'ref cursor.

  Here is my code

  function QR_1RefCurDS return sys_refcursor is
  
   My_Cur Sys_Refcursor;
  begin
    Open My_Cur for select * from scott.emp order by deptno;
    return My_Cur
  end;
  

  fate of the screen.

  

  Oracle Forms/Reports has a complete PL/SQL engine and (only) the SQL parser.

  However, the engine of forms/States PL / SQL and SQL Analyzer are at a level that was in the Oracle 8.0 database.

  So, in the forms/States functions/procedures and forms/States triggers, you can not use SQL commands that did not exist in the 8.0 database.

  The predefined SYS_REFCURSOR type is introduced in Oracle 9i.

  Use this:

  PACKAGE test_rc IS

  TYPE of rc_type IS REF CURSOR RETURN emp % ROWTYPE;

  END;

  FUNCTION RETURN QR_1RefCurDS Test_rc.rc_type IS

  test_rc.rc_type RC;

  BEGIN

  OPEN the RC to SELECT * FROM emp;

  RETURN rc;

  END;

  Kind regards

  Zlatko

• Ref Cursor remote procedure fails

  Remote database server Oracle 9iR2 1

  Local database server Oracle 10 g 2 2

  Remote procedure:

  CREATE OR REPLACE PROCEDURE p_get_results (   i_query   IN   VARCHAR2
                                              , o_refc    OUT  sys_refcursor
                                            )
  AS
  BEGIN
      IF ( i_query IS NULL )
      THEN
           RAISE_APPLICATION_ERROR(-20001,'The paramter i_query cannot be null') ;
      END IF ;
  
  
      OPEN o_refc FOR i_query ;
      
      EXCEPTION
          WHEN   others   THEN
               RAISE ;
  END p_get_results ;
  /
  
  

  Local PL/SQL block

  SQL> var i_query varchar2(100)
  SQL> var o_refc refcursor
  SQL> exec :i_query := 'select count(*) from oo_attrs'
  
  
  SQL> exec p_get_results@demo_oo2 (:i_query,:o_refc)
  
  
  ERROR at line 1:
  ORA-00604: error occurred at recursive SQL level 1
  ORA-01001: invalid cursor
  
  

  Check the link works and request db:

  SQL> select count(*) from oo_attrs@demo_oo2;
  
    COUNT(*)
  ----------
         225
  

  Am I missing something here?

  Am I missing something here?

  Yes - you cannot use REF CURSOR over links to db.

• Ref cursor error message

  Hello expert;

  I have a function that returns a ref cursor, but the function may not return anything. I would like to know what is the best way to manage the error message

  ORA-06503: PL/SQL: function returned no value - slider Ref

  .. Please see below.

  function f_de return latest_cur is
  my_l_cur l_cur;
  
  begin
  open my_l_cur for
  select max(dateadded) as dateadded
  from tbl_test;
  end;
  

  I was wondering what is the best way to manage. I know I could use a count, and if the number is greater than 0, manipulate, but I was looking for the best way to manage it.

  user13328581 wrote:

  Hello expert;

  I have a function that returns a ref cursor, but the function may not return anything. I would like to know what is the best way to manage the error message

  ORA-06503: PL/SQL: function returned no value - slider Ref

  .. Please see below.

  1. latest_cur the f_de function return is
  2. my_l_cur l_cur;
  3. Start
  4. Open the my_l_cur for
  5. Select max (dateadded) as dateadded
  6. of tbl_test;
  7. end;

  I was wondering what is the best way to manage. I know I could use a count, and if the number is greater than 0, manipulate, but I was looking for the best way to manage it.

  by definition a FUNCTION returns a value, but your code isn't working; Therefore, the error is thrown.

  RETURN MY_L_CUR;

  the top line should take place before the END; statement.

• Apex and accept Ref Cursor?

  Apex and accept Ref Cursor?

  Apex and accept objects?

  can someone help me please.

  Hi Nani4850,

  Nani4850 wrote:

  Apex and accept Ref Cursor?

  Apex and accept objects?

  The language of business for APEX is PL/SQL, so yes you can use REF CURSOR and pass objects to you packaged functions/procedures.

  How does this relate to Oracle APEX?

  Please explain what you plan to use a REF CURSOR in the APEX.

  Kind regards

  Kiran

• Ref Cursor

  Hi guys,.

  You can develop the ref cursor please. I'm new to the plsql...

  Hi Alex,

  Introduction to the REF CURSOR

  With the help of REF CURSOR s is one of the most powerful, flexible and scalable means to return the query results to an Oracle database to a client application.

  A REF CURSOR is a PL/SQL data type whose value is the memory address of a workspace of query on the database. In essence, a REF CURSOR is a pointer or a handle to a game on the database of results. REF CURSOR s are represented by the OracleRefCursor class ODP.NET.

  REFCURSORs have the following characteristics:

  • A REF CURSOR refers to a memory on the database address. Therefore, the client must be connected to the database during the lifetime of the REF CURSOR to access.
  • A REF CURSOR involves a round-trip of additional database. While the REF CURSOR is returned to the customer, the actual data is not returned until the customer open it REF CURSOR and requests the data. Note that the data are not be retrieved until the user tries to read it.
  • A REF CURSOR is not editable. The result set represented by the REF CURSOR is read-only. You cannot update the database using a REF CURSOR .
  • A REF CURSOR is not back with scroll. The data represented by the REF CURSOR is only accessible in a way before and in series. You cannot position a record pointer inside the REF CURSOR to point to records in the result set.
  • A REF CURSOR is a PL/SQL data type. You create and return a REF CURSOR within a block of PL/SQL code.

  See this link which explained on cursor by Zerathul ref: PL/SQL 101: understanding Ref Cursor

  Kind regards

  Jitendra