02420-02429: Schemas

This section lists messages generated when commands are used that alter schemas or schema objects.

Cause:	The schema AUTHORIZATION clause is missing in a CREATE SCHEMA statement.

Action:	Check the syntax of the statement, provide a valid schema AUTHORIZATION clause, and retry the statement.

ORA-02421 missing or invalid schema authorization identifier

Cause:	Either:

• The schema authorization identifier is not recognized.

• An attempt was made to use a schema authorization identifier for a user while not connected as that user.

• an unrecognized identifier, then use an existing identifier.

• connected with a different user name, then disconnect and connect to the correct user name.

Cause:	A statement other than a CREATE TABLE, CREATE VIEW, or GRANT appears in a CREATE SCHEMA statement.

Action:	See Oracle7 Server SQL Reference for the valid elements of the CREATE SCHEMA statement.

ORA-02423 schema name does not match schema authorization identifier

Cause:	A table definition with a schema name prepended to the table name does not match the schema name provided in the AUTHORIZATION clause of a CREATE SCHEMA STATEMENT.

Action:	Check that the schema names match the one given in the CREATE SCHEMA statement.

ORA-02424 potential circular view references or unknown referenced tables

Cause:	The CREATE SCHEMA statement contains a view that depends on other views contained in the CREATE SCHEMA statement, or they contain references to non-existing tables.

Action:	Create the dependent views in a separate CREATE SCHEMA statement and ensure that all referenced tables are either defined in the CREATE SCHEMA statement or exist outside the statement.

ORA-02425 create table failed

Cause:	A CREATE TABLE statement failed in the CREATE SCHEMA statement.

Action:	The cause for failure will be presented below this message. Follow the appropriate actions as suggested by the subsequent messages.

ORA-02426 privilege grant failed

Cause:	A GRANT statement failed in the CREATE SCHEMA statement.

Action:	The cause for failure will be presented below this message. Follow appropriate actions, as suggested by the subsequent messages.

ORA-02427 create view failed

Cause:	A CREATE VIEW statement failed in the CREATE SCHEMA statement.

Action:	The cause for failure will be presented below this message. Follow appropriate actions, as suggested by the subsequent messages.

ORA-02428 could not add foreign key reference

Cause:	Oracle could not add a foreign key reference because of an error in the declaration. Either the referenced table does not exist or the table does not have a unique key.

Action:	Check that the referenced table exists and/or has a unique key.

ORA-02429 cannot drop index used for enforcement of unique/primary key

Cause:	An attempt was made to drop an index that is being used as the enforcement mechanism for a unique or primary key.

Action:	Drop the integrity constraint instead of dropping the index.