Oracle Error 20201
Error Handling" in Oracle Database PL/SQL Language Reference. See the end of this chapter for TimesTen-specific considerations. The following topics are covered: Understanding exceptions Trapping exceptions Showing errors in ttIsql Differences in TimesTen: exception handing and error behavior Understanding exceptions This section provides an overview of exceptions in PL/SQL programming, covering the following topics: About exceptions Exception types About exceptions An exception is a PL/SQL error that is raised during program execution, either implicitly by TimesTen or explicitly by your program. Handle an exception by trapping it with a handler or propagating it to the calling environment. For example, if your SELECT statement returns multiple rows, TimesTen returns an error (exception) at runtime. As the following example shows, you would see TimesTen error 8507, then the associated ORA error message. (ORA messages, originally defined for Oracle Database, are similarly implemented by TimesTen.) Command> DECLARE > v_lname VARCHAR2 (15); > BEGIN > SELECT last_name INTO v_lname > FROM employees > WHERE first_name = 'John'; > DBMS_OUTPUT.PUT_LINE ('Last name is :' || v_lname); > END; > / 8507: ORA-01422: exact fetch returns more than requested number of rows 8507: ORA-06512: at line 4 The command failed. You can handle such exceptions in your PL/SQL block so that your program completes successfully. For example: Command> DECLARE > v_lname VARCHAR2 (15); > BEGIN > SELECT last_name INTO v_lname > FROM employees > WHERE first_name = 'John'; > DBMS_OUTPUT.PUT_LINE ('Last name is :' || v_lname); > EXCEPTION > WHEN TOO_MANY_ROWS THEN > DBMS_OUTPUT.PUT_LINE (' Your SELECT statement retrieved multiple > rows. Consider using a cursor.'); > END; > / Your SELECT statement retrieved multiple rows. Consider using a cursor. PL/SQL procedure successfully completed. Exception types There are three types of exceptions: Predefined exceptions are error conditions that are defined by PL/SQL. Non-predefined exceptions include any standard TimesTen errors. User-defined exceptions are exceptions specific to your application. In TimesTen, these three types of exceptions are used in the same way as in Oracle Database. Exception Description How to handle Predefined TimesTen error One of approximately 20 errors that occur most often in PL/SQL code You are not required to declare these exceptions. They are predefined by TimesTen. TimesTen implicitly raises the error. Non-predefined TimesTen error Any other standard TimesTen error These must be
Previous TicketNext Ticket → Opened 4 years ago Closed 3 years ago Last modified 3 years ago #20201 closed Bug (duplicate) Oracle String Length Issue with CLOB and NCLOB Reported by: Ross Peoples Owned by: nobody Component: Database layer (models, ORM) Version: 1.5 Severity: Release blocker Keywords: oracle Cc: Ross Peoples, shai@… Triage Stage: Unreviewed Has patch: no Needs documentation: no Needs tests: no Patch needs improvement: no Easy pickings: no UI/UX: no Description As mentioned in #20200, we are moving from MySQL to Oracle, but are having issues with TextFields. When the length https://docs.oracle.com/cd/E11882_01/timesten.112/e21639/exceptions.htm of a field is greater than 2000, I get the following error: *** DatabaseError: ORA-01461: can bind a LONG value only for insert into a LONG column I am writing a script using Django's ORM to copy the data from one database to the other. Once it gets to a row with more than 2000 characters, it throws that error. https://code.djangoproject.com/ticket/20201 I have figured out a workaround, but it's ugly and not a good solution. This is a part of my scripts (pseudo-code): for row in Model.objects.using(source).all(): row.save(using=target) This is my workaround (again, very ugly): for row in Model.objects.using(source).all(): try: row.save(using=target) except: desc = row.description row.description = desc[:2000] row.save(using=target) # once you have a "good" save, you can now save the original data with no issues row.description = desc row.save(using=target) My lab environment: Windows 7 Python 2.7 (x86) cx_Oracle 5.1.2 Oracle 11.2g (running in Exadata cluster) Django 1.5.1 Oldest first Newest first Threaded Show comments Show property changes Change History (8) comment:1 Changed 4 years ago by Ross Peoples Cc: Ross Peoples added Needs documentation: unset Needs tests: unset Patch needs improvement: unset comment:2 Changed 4 years ago by Ross Peoples This appears to be a Django regression. Out of curiosity, I went back to Django 1.4.3 and it works fine without any workaround. comment:3 Changed 4 years ago by Ross Peoples Severity: Normal → Release blocker comment:4 Changed 3 years ago by Shai Berger Cc: shai@… adde
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