Oracle Error 1001
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Ora-01001 Invalid Cursor Ref Cursor
INTERSECT IS NOT NULL IS NULL JOIN LIKE MINUS NOT OR ORDER BY PIVOT REGEXP_LIKE SELECT SUBQUERY TRUNCATE UNION UNION ALL UPDATE WHERE Oracle Advanced Oracle Cursors Oracle
Maxopencursors Oracle 11g
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: java.sql.sqlexception ora-01001 invalid cursor 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.
already been closed. How to fix it[edit] This is 100% a program logic problem
Ora-01001 Invalid Cursor For Loop
(unless an Oracle bug, such as bug 6823287). Mostly, you increase the area size and maxopencursors options will have either forgotten to code an open statement before using a cursor, or have not how to increase maxopencursors oracle noticed that the cursor has been closed and have tried to continue using it. The following checklist may help identify the fault: Make sure you have https://www.techonthenet.com/oracle/errors/ora01001.php an OPEN statement prior to using any explicit cursors. Make sure that you do not have a misplaced CLOSE statement. If you need to do a sequence of OPEN...CLOSE...OPEN...CLOSE (perhaps because you need to reset bind variables or to commit updates inside a loop) check your logic flow and make sure there are http://www.orafaq.com/wiki/ORA-01001 no fetches between the 1st CLOSE and the 2nd OPEN. If you have nested loops, check that a condition in an inner loop is not being missed which allows control to pass unexpectedly to a CLOSE in an outer loop Remember that a PL/SQL FOR loop does an implicit OPEN and CLOSE. If you take a routine with a FOR loop and change it to a WHILE loop you must remember to code the OPEN and CLOSE. Retrieved from "http://www.orafaq.com/wiki/index.php?title=ORA-01001&oldid=14974" Category: Errors Navigation menu Views Page Discussion Edit History Personal tools Log in / create account Site Navigation Wiki Home Forum Home Blogger Home Site highlights Blog Aggregator FAQ's Mailing Lists Usenet News RSS Feeds Wiki Navigation Categories Recent changes Random page Help Search Tools What links here Related changes Special pages Printable version Permanent link Page information This page was last modified on 23 September 2013, at 16:18. Privacy policy About Oracle Wiki Disclaimers
the error, the probable cause, and the recommended action. Each error code corresponds to an exception class. See "Runtime and Development Exceptions" for more information. Format: A https://docs.oracle.com/cd/A97688_16/toplink.903/b10068/errorcod.htm description shown in the actual exception thrown. Cause: The most probable http://phlonx.com/blog/fred/index.php/2009/09/25/debugging-ora-01001-invalid-cursor/ cause for the error. Action: Suggestions for resolving the error. Descriptor Exceptions (1 - 176) Error code: 1 ATTRIBUTE_AND_MAPPING_WITH_INDIRECTION_ MISMATCH Cause:
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: