DROP ALIAS
エイリアス（シノニム）を削除する
対応SQL
- DB2
- CREATE TABLE
- DECLARE GLOBAL TEMPORARY TABLE
- DROP TABLE
- ALTER TABLE
- CREATE INDEX
- DROP INDEX
- CREATE VIEW
- DROP VIEW
- CREATE PROCEDURE
- DROP PROCEDURE
- CREATE FUNCTION
- DROP FUNCTION
- CREATE TRIGGER
- DROP TRIGGER
- CREATE SEQUENCE
- DROP SEQUENCE
- CREATE ALIAS
- DROP ALIAS
- GRANT
- REVOKE
- RENAME
- CREATE TYPE
- CREATE METHOD
- DROP TYPE
- CREATE TABLE OF
