面试之BI-SQL--table转换

Num

1

2

4

6

7

8

10

11

13

写条SQL语句转成下表：

Column1  Column2

1              2

4              4

6              8

10           11

13           13

selectMIN(Num),MAX(Num)from 

(selectROW_NUMBER()over (orderbyNum)rk,Num

FromNumbers)A

Groupby (A.rk-A.Num)

orderbyMin(Num)