Scalable in SQL Server means good physical and logical database design and administration and there is no quick and easy way to achieve or learn this. Open SQL Server Books Online and start reading. The Microsoft Press books are good. Get a subscription to SQL Server Magazine. Read and contribute to forums like this. Take a class.
What exactly are you trying to achieve?
If one brings so much courage to this world the world has to kill them or break them, so of course it kills them. The world breaks every one and afterward many are strong at the broken places. But those that will not break it kills. It kills the very good and the very gentle and the very brave impartially. If you are none of these you can be sure it will kill you too but there will be no special hurry. Earnest Hemingway, A Farewell To Arms.