Method has_sequence

lib/sqlalchemy/dialects/mssql/base.py:3312–3326

(
        self, connection, sequencename, dbname, owner, schema, **kw
    )

    @reflection.cache
    @_db_plus_owner
    def has_sequence(
        self, connection, sequencename, dbname, owner, schema, **kw
    ):
        sequences = ischema.sequences

        s = sql.select(sequences.c.sequence_name).where(
            sequences.c.sequence_name == sequencename
        )

        if owner:
            s = s.where(sequences.c.sequence_schema == owner)

        c = connection.execute(s)

        return c.first() is not None

    @reflection.cache
    @_db_plus_owner_listing