在SELECT语句中正确的语法顺序如下( )
Awhere ,having, group by,order by
Bhaving,where , group by,order by
Cwhere, order by ,group by,having
Dwhere , group by, having,order by
Awhere ,having, group by,order by
Bhaving,where , group by,order by
Cwhere, order by ,group by,having
Dwhere , group by, having,order by