考考大家,有关sql查询的问题,
下面的sql语句
select count(*) as att from seat where length(seatNo) > 0 and cabin = 'A' or cabin = 'F' and flag not in (' ')
和
select count(*) as att from seat where length(seatNo) > 0 and cabin = 'F' or cabin = 'A' and flag not in (' ')
有区别吗?