Question

my query is showing in row 2000 the data of 2000-2001 & in 2001 the data of 2001-2002.
how can i change the column so that it displayes

column 1        column 2
2000-2001         5
2001-2002         3
2002-2003         9
2003-2004         12
.
.
.
.

and so on…

Answer 1

Without seeing your query this will have to be very generic, but something like the following should work:

SELECT TO_CHAR(col1) || '-' || TO_CHAR(col1+1) as "column 1",
       col2 as "column 2"
  FROM (SELECT col1,
               SUM(col2) as col2
          FROM sometable
          WHERE something = something_else
          GROUP BY col1)

The above is Oracle syntax (the TO_CHAR and || string concatenations) but should give you a good idea of how to proceed.

EDIT: In SQL Server try the following:

SELECT CAST(col1 AS NVARCHAR(100)) + N'-' +
                                    CAST(col1+1 AS NVARCHAR(100)) AS "column 1",
       col2 as "column 2"
  FROM (SELECT col1,
               SUM(col2) as col2
          FROM sometable
          WHERE something = something_else
          GROUP BY col1)

Share and enjoy.