Oracle Database Errors or Warnings from Error ORA-02014 to ORA-02030



ORA-02014: cannot select FOR UPDATE from view with DISTINCT, GROUP BY, etc.
Cause: An attempt was made to select FOR UPDATE from a view which had not been merged because the view used syntax (for example, DISTINCT or GROUP BY) preventing the merge, or because of initialization file parameter settings.
Action: Determine the reason the view will not merge and, if possible, make changes so that it can.
ORA-02015: cannot select FOR UPDATE from remote table
Cause: An attempt was made to select FOR UPDATE on a remote table (directly, or via a view) that had abstract data type columns, and the view or select list contained abstract data type columns or non-column items.
Action: To attempt a select FOR UPDATE, use a view or select list that consists only of base columns from the remote table, none of which may be abstract data type columns.
ORA-02020: too many database links in use
Cause: The current session has exceeded the INIT.ORA open_links maximum.
Action: Increase the open_links limit, or free up some open links by committing or rolling back the transaction and canceling open cursors that reference remote databases.

ORA-02021: DDL operations are not allowed on a remote database
Cause: An attempt was made to use a DDL operation on a remote database. For example, “CREATE TABLE tablename@remotedbname …”.
Action: To alter the remote database structure, you must connect to the remote database with the appropriate privileges.
ORA-02022: remote statement has unoptimized view with remote object
Cause: The local view is unoptimized and contains references to objects at the remote database and the statement must be executed at the remote database.
Action: Create a similar view on the remote database and modify the violating view in the SQL statement with the new view@remote.
ORA-02024: database link not found
Cause: Database link to be dropped is not found in dictionary
Action: Correct the database link name
ORA-02025: all tables in the SQL statement must be at the remote database
Cause: The user’s SQL statement references tables from multiple databases. The remote database is not Oracle V7 or above, and can perform updates only if it can reference all tables in the SQL statement.

Action: None
ORA-02026: missing LINK keyword
Cause: keyword missing
Action: supply missing keyword
ORA-02027: multi-row UPDATE of LONG column is not supported
Cause: A bind variable with length greater than 4000 bytes is being used to update a column, and the update statement updates more than one row.
Action: You may only update a single row with such a bind variable.
ORA-02028: fetching an exact number of rows is not supported by the server
Cause: The server does not support UPIALL, so the fetch of an exact number of rows cannot be emulated on the user side.
Action: Connect to a valid server or do not use an exact fetch.
ORA-02029: missing FILE keyword
Cause: keyword missing
Action: supply missing keyword
ORA-02030: can only select from fixed tables/views
Cause: An attempt is being made to perform an operation other than a retrieval from a fixed table/view.
Action: You may only select rows from fixed tables/views.

Above are list of Oracle Database Errors or Warnings from Error ORA-02014 to ORA-02030 received while performing certain operation against Oracle Database or related products.

What are Oracle Database Error Messages?

Oracle Error Messages may be returned while using products which are part of Oracle Database.  Each Oracle Database Error or Warning Message mentioned above contains the Warning or Error Message Statement, a short explanation of the probable causes of the Error message, and a recommended action.

Hope this was helpful.

SQLServerF1 Team
Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.


Leave a Reply

Your email address will not be published. Required fields are marked *