MYSQL实现RANK函数，达到将两列横向合并到一起

分开查询的结果

• 1:第一个查询的sql及结果

select SUM FROM bigeye.Last24HoursCountDate LIMIT 24;

• 2:第二个查询的sql及结果

select SUM FROM bigeye.Last24HoursCountDate LIMIT 1,24;

都是一行二十四列的数据，需要横向合并到一起

• 1:sql语句

select c.SUM AS NOWSUM,f.SUM AS BEFORESUM FROM 
(select SUM,@a1:=@a1+1 as b1 FROM bigeye.Last24HoursCountDate a,(select @a1:=0) b LIMIT 1,24) c,
(select SUM,@a2:=@a2+1 as b2 FROM bigeye.Last24HoursCountDate d,(select @a2:=0) e LIMIT 24) f WHERE c.b1=f.b2

• 2:结果图