I have a table having columns like values, like this

col1 col2 col3
1000 10 2
1000 20 3
1000 30 4
2000 10 5
2000 20 6
2000 30 7
3000 10 8
3000 20 9
3000 30 10

I want to fetch records like if i enter col2 as 20 and col1 as 1500 then
with
"SELECT col3 FROM table1 WHERE col2 = @col2"

I will get 3 rows having respective records of value 20 for col2(col2 values are fixed)
but col1 values are variable i.e. can fall into different ranges like 1400,1500,2300 etc.
but col2 values are fixed

I want to return only one row for eg. col2 as 20 and col1 as 1500

then
1000 20 3
this row should get returned

How can i do this in SQL SERVER 2005?

I don't know how to use cursors...