{@link org.axiondb.AxionCommand} implementations.
ADD CONSTRAINT
ALTER TABLE
CREATE TABLE
ALTER SEQUENCE
NOTE: Identity column can't be altered.
NOTE: Renaming column require cascade to drop constraints and indexes and then rename
TODO: ADD [COLUMN] ....
CHECKFILESTATE
CREATE SEQUENCE
CREATE DATABASE LINK
CREATE [UNIQUE] [TYPE] INDEX
CREATE [TYPE] TABLE
CREATE VIEW AS sub-query
TODO: support for CREATE VIEW table_name [ ( column_name1, column_name2, ...
DROP TABLE
DROP SEQUENCE
DROP CONSTRAINT
DROP DATABASE LINK
DROP INDEX
DROP VIEW
REMOUNT
TODO: Add Test for the following
TRUNCATE TABLE