First things first.

I dont notice in your table structures that you have and foriegn key restrictions on the sno column stating that they must resemble one another. Could be wrong as Im used to postgreSQL and not mySQL.

After you have that setup, maybe you already do. You just need a join the tables to query from both.

select i.snow,i.product_status from itemdetails as i,products as p where i.sno=p.snow and .

Then your returned 2 columns, the primary key/id and the string your looking for.