Oracle Database Errors or Warnings from Error ORA-01779 to ORA-01799

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ORA-01779: cannot modify a column which maps to a non key-preserved table
Cause: An attempt was made to insert or update columns of a join view which map to a non-key-preserved table.
Action: Modify the underlying base tables directly.
ORA-01781: UNRECOVERABLE cannot be specified without AS SELECT
Cause: UNRECOVERABLE was specified in a CREATE TABLE statement without also specifying a populating subquery with an AS clause.
Action: Do not specify UNRECOVERABLE.
ORA-01782: UNRECOVERABLE cannot be specified for a cluster or clustered table
Cause: A CREATE CLUSTER, or clustered CREATE TABLE statement specified UNRECOVERABLE.
Action: Do not specify UNRECOVERABLE.

ORA-01783: only one RECOVERABLE or UNRECOVERABLE clause may be specified
Cause: RECOVERABLE was specified more than once, UNRECOVERABLE was specified more than once, or both RECOVERABLE and UNRECOVERABLE were specified in a CREATE TABLE or CREATE INDEX or ALTER INDEX REBUILD statement.
Action: Remove all but one of the RECOVERABLE or UNRECOVERABLE clauses and reissue the statement.
ORA-01784: RECOVERABLE cannot be specified with database media recovery disabled
Cause: A CREATE TABLE or CREATE INDEX statement specified RECOVERABLE when the database was running in NOARCHIVELOG mode. Since logs are not being archived, they will be overwritten and the object being created cannot be recovered from a backup taken before the object was created.
Action: Do not specify RECOVERABLE, or restart the database with media recovery enabled.
ORA-01792: maximum number of columns in a table or view is 1000

Cause: An attempt was made to create a table or view with more than 1000 columns, or to add more columns to a table or view which pushes it over the maximum allowable limit of 1000. Note that unused columns in the table are counted toward the 1000 column limit.
Action: If the error is a result of a CREATE command, then reduce the number of columns in the command and resubmit. If the error is a result of an ALTER TABLE command, then there are two options: 1) If the table contained unused columns, remove them by executing ALTER TABLE DROP UNUSED COLUMNS before adding new columns; 2) Reduce the number of columns in the command and resubmit.
ORA-01795: maximum number of expressions in a list is 1000
Cause: Number of expressions in the query exceeded than 1000. Note that unused column/expressions are also counted Maximum number of expressions that are allowed are 1000.
Action: Reduce the number of expressions in the list and resubmit.
ORA-01799: a column may not be outer-joined to a subquery
Cause: <expression>(+) <relop> (<subquery>) is not allowed.
Action: Either remove the (+) or make a view out of the subquery. In V6 and before, the (+) was just ignored in this case.

Above are list of Oracle Database Errors or Warnings from Error ORA-01779 to ORA-01799 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.

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

 

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