Ora Error 01001
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Invalid Cursor Exception Example In Oracle
Exception Handling Oracle Foreign Keys Oracle Loops/Conditionals Oracle Transactions Oracle Triggers String/Char Functions Numeric/Math Functions Date/Time Functions Conversion Functions Analytic Functions Advanced Functions Oracle / PLSQL: ORA-01001 Error Message Learn the cause and how to resolve the ORA-01001 error message in Oracle. Description When you encounter an ORA-01001 error, the following error message will appear: ora-01001 invalid cursor for loop ORA-01001: invalid cursor Cause You tried to reference a cursor that does not yet exist. This may have happened because: You've executed a FETCH cursor before OPENING the cursor. You've executed a CLOSE cursor before OPENING the cursor. You've executed a FETCH cursor after CLOSING the cursor. Resolution The option(s) to resolve this Oracle error are: Option #1 Make sure you haven't CLOSEd the cursor and are still referencing it in your code. Option #2 Make sure you've OPENed the cursor before calling a FETCH cursor or CLOSE cursor. Option #3 If everything else is fine, you may need to increase the AREASIZE and MAXOPENCURSORS options. Share this page: Advertisement Back to top Home | About Us | Contact Us | Testimonials | Donate While using this site, you agree to have read and accepted our Terms of Service and Privacy Policy. We use advertisements to support this website and fund the development of new content. Copyright © 2003-2016 TechOnTheNet.com. All rights reserved.
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Oracle Bug 6823287
helping each other. Join them; it only takes a minute: Sign up Strange error “Ora-01001 Invalid cursor” in procedure up vote 7 down vote favorite Yesterday I worked on a strange bug in our production procedure. Execution https://www.techonthenet.com/oracle/errors/ora01001.php failed on statement if v_cursor%isopen then close v_cursor; -- here was an error end if; After some digging into I discovered that problem was in subprogram that opened this cursor. I fixed bug by adding output parameter sys_refcursor in subprogram. To clarify situation consider following test code: procedure nested_test(test number, p_cur out sys_refcursor) is procedure nested_procedure_fail is begin open p_cur for select 1, 2, 3, 4 from dual where 1 = 0; end; procedure nested_procedure_success(p_cur out http://stackoverflow.com/questions/11341166/strange-error-ora-01001-invalid-cursor-in-procedure sys_refcursor) is begin open p_cur for select 1, 2, 3, 4 from dual where 1 = 0; end; begin if test = 1 then nested_procedure_fail; else if test = 2 then nested_procedure_success(p_cur => p_cur); else open p_cur for select 6, 7, 8, 9 from dual where 1 = 1; end if; end if; end; procedure test_fail is v_cur sys_refcursor; begin nested_test(test => 1, p_cur => v_cur); if v_cur%isopen then close v_cur; end if; end; procedure test_success is v_cur sys_refcursor; begin nested_test(test => 2, p_cur => v_cur); if v_cur%isopen then close v_cur; end if; end; If I try to run test_success everything is OK, but on test_fail I receive a message ORA-01001: Invalid cursor I cannot find any information about this. Can anyone explain why this code fails? Oracle version: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Solaris: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production oracle oracle11g share|improve this question asked Jul 5 '12 at 9:08 Akhmed Kharaev 182127 add a comment| 2 Answers 2 active oldest votes up vote 10 down vote accepted This appears to be bug 7174888, or at least something closely related to it. The description for that is 'ORA-6504 raised when sys_refcursor passed to another procedure', but I can make that happen too if I change test_fai
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Oracle. 0 Comments End-to-end performance tuning is something you hear more and more about. I have seen many presentations about how the "modern" DBA has to be intimately concerned with all layers of the application stack and cannot just focus on the database. I'm on board with that, but the reality is, I have rarely seen it in practice. The only time DBAs, developers, and netops folks seem to venture out of their silos is during crisis meetings and in emergency-situation chatrooms. A case in point was when I was asked to troubleshoot an invalid cursor error on a client's database. Here's the helpful documentation Oracle provides for this error: oerr ora 1001
01001, 00000, "invalid cursor"
// *Cause:
// *Action: Hm. I guess that this is one of those things you're just supposed to "know". Actually, invalid cursor is generally a problem with the application design. Perhaps the code is squandering resources and opening too many cursors. A common solution is to jack up the value of MAXOPENCURSORS. (Note that this is not an Oracle parameter as some people seem to think. It's precompiler option. Meaning that you set this in a C header file and recompile your application in order to change it. But don't ask me about this stuff; I'm a DBA, not a developer, remember?) Well, there was no chance of throwing this problem back on the developers and saying "it's your problem, fix it." The application in this system is a black box, the source code is unavailable, and the vendor who wrote the software is long gone. Must be a pretty sweet time for the developers in this shop; they get to spend their days with their feet up or playing foosball. Thus it was up to us DBA-types to come up with a solution. Where to begin? The error arose when a user of the application tried to change her password through the web interface. Our first thought was of course to look at the full error message, which provided the line in the code where the error arose: 09/20/2009 12:24:13 => User edit failed:
UserId=dolores
updateU