2025-11-05 11:51:56分类:数据库阅读(84221) 
复制select a.*,实现
if(@v_provice = provice, @v_rank:= @v_rank+1, @v_rank:=1 ) as ranks,@v_provice:=provice as provice2 from (select * from tmp_provice_sales orderby provice ,sales desc)a, (select @v_provice:=null,@v_rank:= 0)b having ranks=1; 1.2.3.4.5.6.7.8.9.10.