Oracle Database 11g The Complete Reference (Osborne ORACLE ...

DROP TABLE
SEE ALSO ALTER TABLE, CREATE INDEX, CREATE TABLE, DROP CLUSTER, Chapter 17
FORMAT
DROP TABLE [schema.] table [CASCADE CONSTRAINTS] [PURGE] ;
DESCRIPTION DROP TABLE drops the specified table. To drop a table, you must either own the
table or have the DROP ANY TABLE system privilege. Dropping a table also drops indexes and grants
associated with it. Objects built on dropped tables are marked invalid and cease to work.
The CASCADE CONSTRAINTS option drops all referential integrity constraints referring to keys in
the dropped table.
You can drop a cluster and all of its tables by using the INCLUDING TABLES clause on DROP
CLUSTER.
Using the DROP TABLE statement moves a table or object table to the recycle bin or removes the
table and all its data from the database entirely. Unless you specify the PURGE clause, the DROP TABLE
statement does not result in space being released back to the tablespace for use by other objects, and the
space continues to count toward the user’s space quota. Objects may be automatically purged from the
recycle bin if the tablespace runs out of space for new objects.
DROP TABLESPACE
SEE ALSO ALTER TABLESPACE, CREATE DATABASE, CREATE TABLESPACE, Chapter 51
FORMAT
DROP TABLESPACE tablespace
[INCLUDING CONTENTS [AND DATAFILES] [CASCADE CONSTRAINTS]];
DESCRIPTION tablespace is the name of the tablespace being dropped. The INCLUDING CONTENTS
option allows you to drop a tablespace that contains data. Without INCLUDING CONTENTS, only an
empty tablespace can be dropped. Tablespaces should be offline (see ALTER TABLESPACE) before dropping,
or the drop operation will be prevented if any users are accessing data, index, rollback, or temporary
segments in the tablespace. You must have the DROP TABLESPACE system privilege to use this command.
DROP TRIGGER
SEE ALSO ALTER TRIGGER, CREATE TRIGGER, Chapters 34 and 38
FORMAT
DROP TRIGGER [schema.] trigger;
DESCRIPTION DROP TRIGGER drops the specified trigger. You must either own the trigger or have
the DROP ANY TRIGGER system privilege.
DROP TYPE
SEE ALSO CREATE TYPE, Chapter 38
FORMAT
DROP TYPE [schema.] type_name [ FORCE | VALIDATE ];
DROP TYPE 1129
DESCRIPTION DROP TYPE drops the specification and body of an abstract datatype. You must
either own the type or have the DROP ANY TYPE system privilege. Unless you use FORCE, you cannot
drop a type if a table or other object references it.