Increased # of cursors in Oracle cause AccessControlException?

I have a signed applet that connects to oracle using the thin client. I've been able to connect to the database for the last week until today. The database was shut down momentarily and the number of cursors were increased. Now, I get the same error that I got before I set up my policy file correctly(over a week ago).
<pre>
java.security.AccessControlException: access denied (java.net.SocketPermission 207.98.248.27:1135 connect,resolve)
     at java.security.AccessControlContext.checkPermission(Unknown Source)
     at java.security.AccessController.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkConnect(Unknown Source)
     at java.net.Socket.<init>(Unknown Source)
     at java.net.Socket.<init>(Unknown Source)
     at oracle.sqlnet.SQLnet.Connect(SQLnet.java:330)
     at oracle.sqlnet.SQLnet.ConnectToAddress(SQLnet.java:266)
     at oracle.sqlnet.SQLnet.Connect(SQLnet.java:400)
     at oracle.sqlnet.SQLnet.Connect(SQLnet.java:290)
     at oracle.sqlnet.SQLnet.Connect(SQLnet.java:199)
     at oracle.jdbc.ttc7.TTC7Protocol.connect(TTC7Protocol.java:1021)
     at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:186)
     at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:127)
     at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:170)
     at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:148)
     at java.sql.DriverManager.getConnection(Unknown Source)
     at java.sql.DriverManager.getConnection(Unknown Source)
     at ExsequorWeb.init(ExsequorWeb.java:155)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
</pre>
I closed and reopened the applet, same exception. I rebooted my pc, same exception I recompiled my driver class re-jared, and resigned jar, same exception.
My question is this: Does increasing the number of cursors cause my applet to be untrusted or compromise my policy file? This is very strange to me! It also scares me b/c if simply increasing the number of cursors in the database causes my applet not to run, we are in trouble!

It appears right now that all is back to normal (if there is such a thing!). I failed to explain in the first posting that our R&D dept. is getting new machines. These machines were placed on the network yesterday to allow us to move files over. This is the same day that the database started having trouble connecting or resolving me or my applet. I was not aware that these machines were placed on the network when I started having problems.
I cannot tell you why, but by this new machine being on the network, oracle rejected my old machine's connection requests. Though similar, "mcash" and "mcash1", they are unique names for my old and new machines respectively. I shut down the new machine and oracle is my friend again!
The good news is that it had nothing to do with the oracle change. At the same time I cannot understand why two different machines on the network confused oracle. If this makes sense to anyone let me know!

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Viewer leaving open cursors in Oracle

We are using the JRC to display reports in our software. We are running jboss-4.2.0 as our application server. The backend could be either SQL Server or Oracle. For Oracle we are using the oracle.jdbc.driver.OracleDriver driver. The reports are set up using a JDBC (JNDI) connection. Generally we have it working ok but in Oracle the JRC is leaving open cursors leading to ORA-01000: MAXIMUM OPEN CURSORS EXCEEDED. I have found that a new cursor is opened when the data source is changed in the following code snippet
Iterator tableIT = tableNames.iterator();
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The code definately executes but the the number of open cursors in Oracle does not change. I am at a loss.

A couple more things to think about then.
1. When you go through your loop to set your table location, you are using the clone method to create a new table and then pass that table to the report. Cloning tables is no longer necessary with the JRC. We do know that a fix was provided for the JRC SDK, however this fix would probably not have been applied to the clone method since it has been deprecated.
I have attached a sample that shows the new methodology for setting table location; very similar, just not using clone anymore.
2. When you want to destroy any connections that the ReportClientDocument has made, you will need to call .close() on this object. This can be done in conjunction with the viewer.dispose(). One thing to note is that if you call the .close() method, it will need to be done as the user is closing the browser, or you will not have access to your report object when you have it open in the HTML Viewer.

How to increase the memory of oracle

Hi,
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select * from V$SGAINFO;
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Redo Buffers     12529664     No
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Are all columns in the WHERE clause indexed?
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Cursor in ORACLE FORMS 10g/6i

Dear All Seniors
Please tell me with complete example about CURSORS in ORACLE 10g/ 6i.
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-> fetching
-> close etc
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thanks in advance
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Here is an example
DECLARE
     /* cursor declaration */
     CURSOR C IS
     SELECT EMP_MST.EMP_ID,EMP_MST.EMP_DESIG_ID,
     EMP_MST.EMP_CODE, EMP_MST.EMP_NAME,
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     WHERE NVL(EMP_MST.EMP_QUIT, 0) = 0
     AND EMP_MST.EMP_CID_ID=:GLOBAL.GUNIT_ID
     AND EMP_MST.EMP_DEPT_ID=:GLOBAL.GDEPT_ID
     AND EMP_MST.EMP_DEPT_ID=DEPT_MST.DEPT_ID
     AND EMP_MST.EMP_DESIG_ID=DESIG_MST.DESIG_ID
     AND EMP_MST.EMP_SAL_TYPE=1
     ORDER BY EMP_MST.EMP_CODE;
     ALT NUMBER;
     R C%ROWTYPE;
     N NUMBER;
     errnum NUMBER       := ERROR_CODE;
V_COUNT NUMBER;
SD_COUNT NUMBER;
     V_ADD_AMT NUMBER;
     V_ADD_DEDUCT NUMBER;
     V_SAL_ADD_AMT NUMBER;
BEGIN
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     FROM SALARY_DTL,SALARY_MST
     WHERE SALARY_DTL.SD_SM_ID=SALARY_MST.SM_ID
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          IF SD_COUNT=0 THEN
          FIRST_RECORD;
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               LAST_RECORD;
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          END IF;
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      FETCH C INTO R;               ----cursor fetch/read
      EXIT WHEN C%NOTFOUND;
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      :SALARY_DTL.TXT_EMP_CODE:=R.EMP_CODE;
      :SALARY_DTL.TXT_NAME:=R.EMP_NAME;
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      :SALARY_DTL.SD_OLD_GROSS_SAL:=R.EMP_GROSS_SAL;
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Please tell me how to use to_date in cursor in oracle 8i. when i m using to_date in where clause in cursor it's giving error to_date function is out of scope.

CURSOR C1 IS
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B.EXCH_RATE,A.FILE_CODE,C.COMP_NAME
FROM XOS_MS A,QUOT_HOTEL_DS B,AC_COMPANY_MS C
WHERE A.COMP_CODE=B.COMP_CODE
AND A.XO_NO=B.XO_NO
AND A.COMP_CODE=C.COMP_CODE
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Using Implicit REF Cursor in Oracle DB 12c

For those interested in using ODP.NET implicit REF Cursors in Oracle DB 12c, the syntax is different from what was available in Oracle 11g. Here's a 12c-specific example:
=======================
Create or Replace PROCEDURE GetEmpAndDept
AS
EMPS sys_refcursor;
DEPTS sys_refcursor;
BEGIN
OPEN EMPS for SELECT empno, ename from emp;
dbms_sql.return_result(EMPS);
OPEN DEPTS for SELECT deptno, dname from dept;
dbms_sql.return_result(DEPTS);
END;
=======================
// C#
OracleConnection conn = new OracleConnection("User Id=scott; Password=tiger);
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OracleCommand cmd = new OracleCommand("GetEmpAndDept", conn);
cmd.CommandType = CommandType.StoredProcedure;
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while(rdr.Read())
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rdr.NextResult();
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i am using Oracle.ManagedDataAccess.dll v4.121.1.0
Oracle Data Base 12c
Visual Studio 2012 .net framework 4
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"fast cursor " in oracle

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Scrollable cursors in oracle 8.1.7

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For further reading:
http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:1180618018840#3260280102622
http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:127412348064#6969336986834
http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:311216724461#31102007054659

Implicit PL/SQL cursors remain open, causing ORA-01000 (Client 9.2.0.1)

Hello,
since migrating our system from Oracle Client 9.0.X to 9.2.0.1 (Windows XP), i am encountering troubles when calling a stored procedure from a Cobol-Program:
after a while i run into a 'Maximum open cursors exceeded'-message (ORA-01000)
The stored procedure returns a cursor (ref_cursor)
When Executing the stored procedure, there are actually 2 cursors involved, in fact the stored PL/SQL procedure implicitely opens a child-cursor when doing a select within the PL/SQL.
After fetching the result and closing the cursor in my cobol-program, it correctly closes the cursor associated with the stored-procedure, but it does not close the cursor that was implicitely opened by oracle.
After a while i am running into a Maximum open cursors message, because those cursors have not properly been closed.
Here's a simple PL/SQL package that illustrates the problem:
create or replace package scott.SCOTTS_PACKAGE is
type ref_cursor IS REF CURSOR;
function GET_EMP(EMP_IN CHAR) return ref_cursor;
end SCOTTS_PACKAGE;
create or replace package body scott.SCOTTS_PACKAGE is
-- Function and procedure implementations
function GET_EMP(EMP_IN CHAR) return ref_cursor is
MyCurs ref_cursor;
begin
OPEN MyCurs FOR
SELECT EMPNO ,
ENAME ,
JOB
FROM SCOTT.EMP
WHERE ENAME = EMP_IN;
return(MyCurs);
end;
end SCOTTS_PACKAGE;
Here are some exerpts from my cobol program:
(The program iterates 100x through the section that executes the PL/SQL. After each iteration an additional open cursor remains in the database)
003800 EXEC SQL BEGIN DECLARE SECTION END-EXEC.
003900*
004000 01 SQL-USERNAME PIC X(16) VARYING.
004100 01 SQL-PASSWD PIC X(16) VARYING.
004200 01 SQL-DBNAME PIC X(64) VARYING.
004300 01 ORACLE.
004700 02 ORA-CUR-EMP SQL-CURSOR.
01 EMPREC.
02 EMPREC-EMPNO PIC X(4).
02 EMPREC-ENAME PIC X(10).
02 EMPREC-JOB PIC X(9).
005400 EXEC SQL END DECLARE SECTION END-EXEC.
018400 PROCEDURE DIVISION.
CONTINUE.
018700 EXEC SQL
018800 WHENEVER SQLERROR DO PERFORM SQL-ERROR
018900 END-EXEC.
019000*
CONTINUE.
019100 EXEC SQL
019200 WHENEVER NOT FOUND DO PERFORM SQL-NOT-FOUND
019300 END-EXEC.
022400 EXEC SQL
022500 ALLOCATE :ORA-CUR-EMP
022600 END-EXEC
PERFORM VARYING I FROM 1 BY 1 UNTIL I > 100
ACCEPT DUMMY FROM TER
IF DUMMY = "E"
MOVE 100 TO I
END-IF
PERFORM GET-EMP
ADD 1 TO I
END-PERFORM
119300 GET-EMP SECTION.
119400************************
119500 GAM0.
MOVE SPACES TO EMPREC-EMPNO EMPREC-JOB
MOVE "SMITH" TO EMPREC-ENAME
120200 EXEC SQL AT SSSI EXECUTE
120300 BEGIN
120400 :ORA-CUR-EMP:=
120500 SCOTT.SCOTTS_PACKAGE.GET_EMP(:EMPREC-ENAME );
120900
END;
121000 END-EXEC
121200 IF DB-ERR-CODE NOT = HIGH-VALUE
121300 DISPLAY "CCSIFSO:GET-AUTRE-MATR:APPEL PERS... OK"
121400 EXEC SQL
121500 FETCH :ORA-CUR-EMP
121600 INTO
121700 :EMPREC-EMPNO,
121800 :EMPREC-ENAME,
121900 :EMPREC-JOB
122400 END-EXEC
122500 END-IF
122600*
122700 IF DB-ERR-CODE NOT = HIGH-VALUE
122800 DISPLAY "CCSIFSO:GET-AUTRE-MATR:APPEL FETCH.. OK"
123000 ELSE
123100 MOVE LOW-VALUE TO DB-ERR-CODE
123200 END-IF
123300 EXEC SQL
123400 CLOSE :ORA-CUR-EMP
123500 END-EXEC
123600 GA-EX.
123700 EXIT.
124000 SQL-NOT-FOUND SECTION.
124100*----------------------
124200 NF0.
124300 DISPLAY "CCSIFSO:SQL-NOT-FOUND SECTION."
124400 MOVE HIGH-VALUE TO DB-ERR-CODE.
124500 NF-EX.
124600 EXIT.
124700*
124800 SQL-ERROR SECTION.
124900*-----------------
125000 ER0.
125200 EXEC SQL
125300 WHENEVER SQLERROR CONTINUE
125400 END-EXEC
125700 MOVE HIGH-VALUE TO DB-ERR-CODE
125800*
126100 DISPLAY "ORACLE ERROR DETECTED: " SQLCODE UPON TER
126200 DISPLAY SQLERRMC UPON TER
126300*
126400 EXEC SQL AT SSSI
126500 ROLLBACK WORK
126600 RELEASE
126700 END-EXEC
126800 DISPLAY "----------------------------" UPON TER
126900 DISPLAY " ! ROLLBACK ET DISCONNECT ! " UPON TER
127000 DISPLAY "----------------------------" UPON TER
127200 CALL "PPTERMJ".
127400 ER-EX.
127500 EXIT.
Finally here's an exerpt from V$OPEN_CURSOR, after a few iterations:
1 begin :b1 := SCOTT . SCOTTS_PACKAGE . GET_EMP (:b2 ) ; END ;
2 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
3 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
4 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
5 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
6 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
7 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
8 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
9 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
10 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
11 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
As you see, there is only 1 cursor starting with 'begin ... '
but there are 10 implicit cursors 'SELECT EMPNO, ... ' that have not been properly closed, nor reused by ORACLE.
In our old configuration (ORACLE CLient 9.0.X), you would only see:
1 begin :b1 := SCOTT . SCOTTS_PACKAGE . GET_EMP (:b2 ) ; END ;
2 SELECT EMPNO , ENAME , JOB FROM EMP WHERE ENAME = :B1
meaning all the other cursors have properly been closed.
As a conclusion: the program correctly closes the implicit cursors when using a 9.0 Client, wheras the implicit cursors remain open on Client 9.2.0.1 (Windows XP)
The underlying database can be either 8.i or 9, the problem remains the same.
Finally here's a small Delphi code, using ODAC-components, that somewhat illustrates the same problem:
procedure TForm1.ExecProcClick(Sender: TObject);
var I: INTEGER ;
begin
FOR I := 1 TO 5 DO
BEGIN
SP1.StoredProcName:='SCOTT.SCOTTS_PACKAGE.GET_EMP';
SP1.Prepare;
SP1.ParamByName('EMP_IN').AsString := 'SMITH';
SP1.ExecProc;
SP1.Next;
SP1.Close;
SP1.UnPrepare;
END;
end;
After each call to 'PREPARE', an additional implicit cursor remains open on the database. (using Oracle Client 9.2.0.1)
On our old system (Oracle Client 9.0 or 8.X), the same program would not generate accumulating open cursors on the database
Any suggestions would be welcome,
Claude

Cobol.. been many years since I last even saw some Cobol source code. Invokes all kinds of memories. :-)
Since you found the patch, the advice is superfluous, but works. Close the cursor at the PL/SQL side, e.g.
create or replace procedure CloseRefCursor( cRefCursor TYPELIB.TRefCursor ) is
begin
close cRefCursor;
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-- if the cursor is already gone, not a problem
NULL;
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How to open a Ref cursor in Oracle Reports

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I am using NetBeans ( Forte 5) for developing an application with Oracle Database. My application makes use of executeUpdate, executeQuery statements inorder to access Database.
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Is this the problem with Forte or Oracle. I am using Oracle in a network in which i have got a tablespace in the Database server.
How to tackle this problem.

I am using 3 methods preparedStatements
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Is this the correct way to close the open cursor.
I access the table attributes using a rs.getString(colNum) and
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Will Oracle open a cursor for execute and executeUpdate which is not returning a ResultSet object .
If Oracle opens a cursor for these two methods, how should i close the open cursor.

How to populate data into a tabular datablock from a cursor in oracle forms

Hello experts,
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declare
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begin
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    first_record;
    loop
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:c.t2;
Exit when :system.last_record = 'TRUE';
next_record;
Close C3;
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Everything is OK here except,I have 5 record rows in C datablock but only first record is fetched into datablock.I want all records are fetched into data block
Thank you
regards
aaditya

Yes
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Invalid cursor in Oracle 9i (but works on 11g)

Hi,
I have the function:
function get_capat_transa(p1 sys_refcursor, p2 number) return varchar2 is
cod varchar2(40);
begin
for i in 1..p2 loop
    fetch p1 into cod;
end loop;
return cod;
end;Ok, when i call this function in 11g like:
select get_capat_transa( osapi_ni.getCapatTransa('0373',100, 23453425), 1 ) cod
from dual
The first parameter supplied is osapi_ni.getCapatTransa('0373',100, 23453425), another function within a package, which returns a ref_cursor.
This works with no errors in Oracle 11g.
The same select written in Oracle 9i generates the error:
ORA-01001: invalid cursor
I pressed Yes to view the stack error and i got that the error raises from the line 'fetch p1 into cod'.
Any workaround for this, to work in 9i also?
Thanks!
Edited by: Roger22 on 18.08.2011 09:02
Edited by: Roger22 on 18.08.2011 09:03

Hi, It did not helped me..
More simply (so a simplest example) - you can try in 9i:
create or replace function getCapatTransa2 return sys_Refcursor is
   tmp sys_Refcursor;
   error varchar2(1500);
begin
    open tmp for select 'x' from dual;
    return tmp;
end getCapatTransa2;then
create or replace function get_capat_transa(p1 sys_refcursor, p2 number) return varchar2 is
cod varchar2(40);
begin
for i in 1..p2 loop
--    if p1%isopen then
      --raise_application_error (-20667, cod);
      fetch p1 into cod;
end loop;
return cod;
end;and finally:
select get_capat_transa(getCapatTransa2, 1 ) cod
from dualWhy in 9i returns invalid cursor and in 11 returns 'x' ? Seems like in 9i the cursor p1 is not open, but why? i can't explain..
Edited by: Roger22 on 18.08.2011 10:43

How can i increase sga size in oracle 10g

Hello friends
how can i increase my sga size in oracle 10g
Regards
Vicky
Edited by: Vignesh Chinnasamy on 31-Jul-2012 02:28

HI
**SQL> Show parameter sga ;**
NAME                                 TYPE        VALUE
lock_sga                             boolean     FALSE
pre_page_sga                         boolean     FALSE
sga_max_size                         big integer 2G
sga_target                           big integer 2G
**SQL> show parameter memory;**
NAME                                 TYPE        VALUE
hi_shared_memory_address             integer     0
shared_memory_address                integer     0
**[root@mte ~]# ulimit -a**
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
file size               (blocks, -f) unlimited
pending signals                 (-i) 1024
max locked memory       (kbytes, -l) 32
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 278528
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited
*[root@mte ~]#*

Error in Cursors in Oracle 10g

We have a VB program that is running a procedure with a cursor like this:
cursor cleo is select * from tabla1 where campo1='valor1';
leer cleo%rowtype;
begin
open cleo;
loop
fetch cleo into leer;
exit when cleo%notfound;
end loop;
close cleo;
end
Then return rows that not are part of the set given by the select statement.
The problem is given randomly when running the VB program, instead if run the same statement in sqlplus it works fine.
The program works fine against an Oracle 8 database, the error appears against an Oracle 10g database
null

the code to execute is:
create or replace procedure cpc_jz_aux (dirname varchar2, plan varchar2, error out varchar2) is
file_write sys.utl_file.file_type;
cursor cleo is select *
from oper.plan_hidro_et_per_cpcs
where id_plan = plan
and id_etapa = 1 order by id_hidro,id_per;
leer cleo%rowtype;
BEGIN
error:=NULL;
if sys.utl_file.is_open(file_write) then
sys.utl_file.fclose(file_write);
end if;
file_write := sys.utl_file.fopen(dirname,'cpc_jt3.dat','w');
     open cleo;
     loop
          fetch cleo into leer;
          exit when cleo%notfound;
          sys.utl_file.put_line(file_write,leer.id_hidro||','||leer.id_per||','||
               nvl(leer.ymin,0)||','||nvl(leer.ymax,0)||','||nvl(leer.zmin,0)||
                    ','||nvl(leer.zmax,0));
     end loop;
     close cleo;
     sys.utl_file.fclose(file_write);
exception
when others then
dbms_output.put_line('error:'||sqlcode||' '||sqlerrm);
error := sqlerrm;
if sys.utl_file.is_open(file_write) then
sys.utl_file.fclose(file_write);
end if;
raise;
end cpc_jz_aux;
Message was edited by:
jpastro

Increased # of cursors in Oracle cause AccessControlException?

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