原表
select t1.c1-t2.c1 c1,t1.c2-t2.c2 c2 from
( select rownum a,c1,c2 from tt ) t1,
( select rownum a,c1,c2 from tt ) t2
where t1.a=t2.a+1
时间: 2024-08-01 04:11:20
原表
select t1.c1-t2.c1 c1,t1.c2-t2.c2 c2 from
( select rownum a,c1,c2 from tt ) t1,
( select rownum a,c1,c2 from tt ) t2
where t1.a=t2.a+1