Odbc Error Is Ora-01001 Invalid Cursor
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invalid cursor exception example in oracle ORA-01001: invalid cursor tips Oracle Error Tips by Burleson Consulting sql error invalid cursor halt application The Oracle docs note this on the ora-01001 error*: ORA-01001 invalid cursor Cause: Either a host language program call maxopencursors specified an invalid cursor or the value of 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 followingInvalid Cursor Ora-06512 Oracle
calls: SQL, DESCRIBE, NAME, DEFINE, BIND, EXEC, FETCH, and CLOSE. The Logon 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 increase the area size and maxopencursors options necessary to increase the MAXOPENCURSORS option value before precompiling. The ORA-01001 error occurs when: a host language 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
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for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login https://www.experts-exchange.com/questions/26551653/Ora-01001-Invalid-cursor.html Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Ora - 01001 Invalid cursor Want to Advertise Here? Solved Ora - 01001 Invalid cursor Posted on 2010-10-18 Oracle Database Crystal Reports 1 Verified Solution 7 Comments 1,300 Views Last Modified: 2012-05-10 Here is the rules for using stored procedure as a datasouce for crystal reports: "To call Stored Procedure from crystal report, Set data source of report to Stored invalid cursor Procedure (DataBase Expert Wizard). That procedure must met thses requirement 1- You must create a package that defines the REF CURSOR (type of field that will be retrieved). 2- The procedure must have a parameter that is a REF CURSOR type. This is because CR uses this parameter to access and define the result set that the stored procedure returns. 3- The REF CURSOR parameter must be defined as IN OUT (read/write mode). 4- Parameters can only be odbc error is input (IN) parameters. CR is not designed to work with OUT parameters. 5- The REF CURSOR variable must be opened and assigned its query within the procedure. 6- The stored procedure can only return one record set. The structure of this record set must not change, based on parameters. 7- The stored procedure cannot call another stored procedure." In my stored procedure instead of calling another stand alone stored procedure because of the rules, I have declared a procedure with in my stored procedure and calling that procedure to execute before returning my dataset(which is just a sysdate in this case). I have used this technique in my several other reports which is based on stored procedures and has worked fine. I think the error is due to the fact that the called procedure with in the main stored procedure uses a ref-cursor and I am doing some mistake in opening/closing the ref cursor. Though the main stored procedure executes a single record set(as required) it has to execute the called procedure. The purpose of this stored procedure is to return only the sysdate while it executes a procedure in it which populates a table. Attached here is my stored procedure which my report is based upon. When I execute the report I get ora-01001 error. Please help me to fix it. I will be glad to furnish any other details you may want.