Hey Hariyo Kagaj, thanks for showing interest on SQL. Its not possible to learn thro. Sajha. but i do suggest how to start:

1) download trail version of SQL server from Microsoft site.

2) Get one book for begining SQL and practice.

If you have problem on Practice, then we can discuse here.

beside that, i have lots of ebook and video tutorial on SQL. if you need it just email me. and by the way am gonna post video tutorials from begining of sql .

any way all the best . welcome to sql world.

Rawbee