ALTER TABLE `old_table` RENAME `new_table`;
DROP TABLE `table`;
ALTER TABLE `table` ADD `column` 데이터타입 NULL or NOT NULL COMMENT '설명';
ALTER TABLE `table` RENAME COLUMN `old_column` TO `new_column`;
ALTER TABLE `table` MODIFY `column` 데이터타입 NULL or NOT NULL COMMENT '설명';
ALTER TABLE `table` DROP COLUMN `column`;