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我得到了
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1' error for the following query
update Stops set trip_flag = true,
route_type = (select route_type from Routes
where route_id = (select route_id from Trips
where trip_id = (select trip_id from Stop_Times
where stop_id = (select stop_id from Stops where location_type = 0)));
请帮帮我。