Question

I trying to get a grouping done between 2 rows without a cursor, can some one help me reg this

Col1(int)  Col2(int)
---------  ---------
1          20
2          30
3          40

I want output like this

Col1  Col2
----  ----
1-2   50
2-3   70

Answer 1

Assuming that col1 is integer

SELECT CAST(a.col1 as VARCHAR(10))+ '-' + CAST(b.col1 as VARCHAR(10)), COALESCE(a.col2,0)+COALESCE(b.col2,0)
FROM table a
JOIN table b a.col1 = b.col1 + 1