Solved

identifier 'V_CUR' must be declared

Posted on 2004-09-07
5
2,694 Views
Last Modified: 2008-01-09
Hello guys

What's wrong ?
v_Cur is a ref cursor

begin
  v_Cur := GetALLRecordByIDG(FTable, FIDG);
  select max(ID) into v_maxid from v_Cur;    //------------------ Error : *
  return(v_maxid);
end;

*"Error: PLS-00201: identifier 'V_CUR' must be declared
Line: 93
Text: select max(ID) into v_maxid from v_Cur;"
0
Comment
Question by:wwwbetyar
  • 3
5 Comments
 
LVL 11

Expert Comment

by:cjjclifford
Comment Utility
Is there a DECLARE section missing, where v_Cur is defined?
0
 
LVL 47

Expert Comment

by:schwertner
Comment Utility
Ref Cursor should also be declared.
0
 

Author Comment

by:wwwbetyar
Comment Utility
v_Cur is defined in the package header !

Header :
type
       refcur is ref cursor;  
...



Body :

function GetALLRecordByIDG(FTable in varchar2, --melyik tábla..
                           FIDG in number)     --..melyik IDG-je alapján
  return refcur is      
  v_Cur  refcur;    
  v_sql  long;
-- MODIFICATION HISTORY
-- Person          Date         Comments
-- --------------  -----------  -------------------------------------------
-- Visszatér az összes rekorddal amelynek IDG-je alapjan azonos (csak IDG-t tudjuk)
-- --------------  -----------  -------------------------------------------
-- Zalán Péter     2004.09.06.   Létrehozás
-- --------------  -----------  -------------------------------------------    
begin
  v_sql := 'select * from '||FTable||' where IDG='||to_char(FIDG);
  open v_Cur for v_sql;
  return(v_Cur);
end;  

and now ????
0
 
LVL 11

Expert Comment

by:cjjclifford
Comment Utility
v_Cur cannot be accessed like that in the calling procedure.

What you have to do is something like:

-- test procedure part of the package defining "refcur"
PROCEDURE test_proc
IS
    v_Cur refcur;
BEGIN
    v_Cur := GetALLRecordByIDG(FTable, FIDG);
    -- etc, etc...
END;
/


0
 
LVL 11

Accepted Solution

by:
cjjclifford earned 50 total points
Comment Utility
my previous post explains the 'rror: PLS-00201: identifier 'V_CUR' must be declared' error... however, you cannot use a cursor as a table/view in a select statement (as is tried in the following):

  1  declare
  2  type refcur is ref cursor;
  3  v_cur refcur;
  4  i number;
  5  begin
  6  open v_cur for 'SELECT 1 a, 2 b, 3 c, 4 d FROM dual';
  7  select max(a) into i from v_cur;
  8  dbms_output.put_line( 'max(a) : ' || i );
  9* end;
SQL> set serveroutput on
SQL> /
select max(a) into i from v_cur;
                          *
ERROR at line 7:
ORA-06550: line 7, column 27:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 7, column 1:
PL/SQL: SQL Statement ignored


What you should try and do is join the two procedures into one call...

DECLARE
    v_maxid NUMBER;
    v_id NUMBER := 100; -- whatever, probably parameter!
BEGIN
    SELECT max(id) INTO v_maxid
    FROM table_name WHERE id = :id
    USING v_id;
END;
/

However, it looks like you want to use one function to build generic select statements based on table_name and ID parameters.
so to do this in a single step:

CREATE FUNCTION get_maxid( in_tname IN  VARCHAR2, in_id IN VARCHAR2 ) RETURNS NUMBER
IS
    v_max NUMBER;
BEGIN
    -- Use placeholder to help Oracle cache SQL better!
    EXECUTE IMMEDIATE 'SELECT max( id ) FROM ' || in_tname || ' WHERE IDG = :id'
    INTO v_max
    USING in_id;
    RETURN v_max;
END;
/
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Join & Write a Comment

Article by: Swadhin
From the Oracle SQL Reference (http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/queries006.htm) we are told that a join is a query that combines rows from two or more tables, views, or materialized views. This article provides a glimps…
Subquery in Oracle: Sub queries are one of advance queries in oracle. Types of advance queries: •      Sub Queries •      Hierarchical Queries •      Set Operators Sub queries are know as the query called from another query or another subquery. It can …
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
This video shows how to Export data from an Oracle database using the Datapump Export Utility.  The corresponding Datapump Import utility is also discussed and demonstrated.

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now