management system

bro and members...
i am doing a project on shop management system.
i am dealing with database cz i need to store the customer name. i want a project to get some ideas on managing data.does anbody knows a readymade project on managing. means taking the input storing in database and viewing , updating, deleting, and many such options
i am using visual studio 2010 as my university told me.
help me guyz
i have created a database link up. and a form application. just i want to have access to the database through windows form. and i want options such as no. of customers and many option. i know i have to fire a sql query for that to get into the database. i donno how to do that