Method drop_all

lib/sqlalchemy/sql/schema.py:6324–6350

Drop all tables stored in this metadata. Conditional by default, will not attempt to drop tables not present in the target database. :param bind: A :class:`.Connection` or :class:`.Engine` used to access the database. :param tables: Op

(
        self,
        bind: _CreateDropBind,
        tables: Optional[_typing_Sequence[Table]] = None,
        checkfirst: Union[bool, CheckFirst] = CheckFirst.ALL,
    )

        )

    def drop_all(
        self,
        bind: _CreateDropBind,
        tables: Optional[_typing_Sequence[Table]] = None,
        checkfirst: Union[bool, CheckFirst] = CheckFirst.ALL,
    ) -> None:
        """Drop all tables stored in this metadata.

        Conditional by default, will not attempt to drop tables not present in
        the target database.

        :param bind:
          A :class:`.Connection` or :class:`.Engine` used to access the
          database.

        :param tables:
          Optional list of ``Table`` objects, which is a subset of the
          total tables in the ``MetaData`` (others are ignored).

        :param checkfirst: A boolean value or instance of :class:`.CheckFirst`.
          Indicates which objects should be checked for within a separate pass
          before dropping schema objects.

        """
        bind._run_ddl_visitor(
            ddl.SchemaDropper, self, checkfirst=checkfirst, tables=tables
        )

    @property
    def schemas(self) -> _typing_Sequence[str]: