Invalid Cursor Error
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ORA-01001: ora-01001 invalid cursor ref cursor invalid cursor tips Oracle Error Tips by Burleson Consulting The Oracle docs note this invalid cursor exception example in oracle on the ora-01001 error*: ORA-01001 invalid cursor Cause: Either a host language program call specified an invalid cursor or the value of sql error invalid cursor halt application the MAXOPENCURSORS option in the precompiler command were too small. All cursors must be opened using the OOPEN call before being referenced in any of the following calls: SQL, DESCRIBE, NAME, DEFINE, BIND, EXEC, FETCH, and CLOSE. The LogonJava.sql.sqlexception: Ora-01001: Invalid Cursor
Data Area (LDA) must be defined by using OLON or OLOGON. If the LDA is not defined, this message is issued for the following calls: OPEN, COM, CON, ROL, and LOGOFF. Action: Check the erroneous call statement. Specify a correct LDA area or open the cursor as required. If there is no problem with the cursor, it may be necessary to increase the MAXOPENCURSORS option value before precompiling. The ORA-01001 error occurs when: a host language ora-01001 invalid cursor for loop program call gave an invalid cursor for use the value of the MAXOPENCURSORS option in the precompiler command was too small You can fix the ORA-01001 error by: Check your problematic call statement for any issues Specify a correct LDA area or open the cursor as required As a last resort, increase the MAXOPENCURSORS option value before precompiling As a note, the ORA-01001 error does not exist in Oracle 10g, according to the Oracle documentation. OraFaq.com has the following to say about the ORA-01001 error: This is 100% a program logic problem. You have either forgotten to code an open statement before using a cursor, or have not 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 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 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
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just like you, 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 http://www.dba-oracle.com/t_ora_01001_invalid_cursor.htm production procedure. Execution 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 = http://stackoverflow.com/questions/11341166/strange-error-ora-01001-invalid-cursor-in-procedure 0; end; procedure nested_procedure_success(p_cur out 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', b
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