How ASP into ASP.NET with SQL server 2000

Dear All,
I'm new on ASP.NET, now trying convert ASP with SQL 2000 into ASP.NET SQL 2000 server.
I facing a problem while read, write, update the SQL command.
like,
rs.open("Select * from tableA"),ocoon, permission,permission
If rs.eof then
rs.addnew()
rs.column1 = "1"
else
rs.column2 = "2"
rs.column3 = "3"
rs.update()
end if
rs.close()
set rs = nothing
this is how to change into ASP.NET with SQL selection and updating command??
Regards,
I would recommend reading up some articles on Data Access in ASP.NET. There are some Tutorials on this site.