DROP TABLE 
  `cache`,
  `class`,
  `component`,
  `connector`,
  `constraint`,
  `error`,
  `lib`,
  `log`,
  `permission`,
  `request`,
  `resource`,
  `response`,
  `role`,
  `savepoint`,
  `session`,
  `template`,
  `transaction`;
Add drop table SQL for schema 0.7.0
Add drop table SQL for schema 0.7.0
