Action: Before dropping or truncating the table, disable the foreign key constraints in other tables. You can see what constraints are referencing a table by issuing the following command:

select constraint_name, table_name, status
from user_constraints
where r_constraint_name in (
select constraint_name from user_constraints where table_name 
='tabnam');

Cause: An attempt was made to GRANT or REVOKE an invalid privilege (not EXECUTE, DEBUG, or UNDER) on a type.

Action: GRANT or REVOKE only the EXECUTE, DEBUG, or UNDER privilege on types.

Action: Remove the offending attribute from the type. If it is a subtype attribute then declare the VARRAY column NOT SUBSTITUTABLE.

Action: Before performing the above operations the table, drop the foreign key constraints in other tables. You can see what constraints are referencing a table by issuing the following command:

SELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = "tabnam";

If creating a temporary tablespace, do not specify a block size different from the standard block size.

Cause: It is not permitted to migrate SYSTEM tablespace from locally managed format to dictionary managed format or relocate bitmaps.

Cause: An attempt was made to set WORKAREA_SIZE_POLICY to AUTO while PGA_AGGREGATE_TARGET is not specified.

Action: Before setting WORKAREA_SIZE_POLICY, set PGA_AGGREGATE_TARGET to a value representing the total private memory available to the instance. This total is generally the total physical memory available in the system minus what is needed for the SGA minus what is needed for the operating system (for example, such as 500 MB).

Cause: This compilation was aborted because the library unit that was compiled would have formed a non-REF mutually-dependent cycle with some other library units. This happens when an attempt is made to compile types that have attributes of other types that may participate in a cycle with this type. Example:

create type t1; create type t2 (a t1); create type t1 (a t2);