Method default_from

lib/sqlalchemy/sql/compiler.py:2442–2450

Called when a SELECT statement has no froms, and no FROM clause is to be appended. Gives Oracle Database a chance to tack on a ``FROM DUAL`` to the string output.

(self)

        return get

    def default_from(self) -> str:
        """Called when a SELECT statement has no froms, and no FROM clause is
        to be appended.

        Gives Oracle Database a chance to tack on a ``FROM DUAL`` to the string
        output.

        """
        return ""

    def visit_override_binds(self, override_binds, **kw):
        """SQL compile the nested element of an _OverrideBinds with