以下文章将为您提供帮助:
VB.NET-MS-Access交互教程
第2部分-使用ADO .NET-访问

从字面上看，网络上有数以百万计的示例.您所要做的就是让Google通过vb.net使用访问数据库".

hi
i am new to programming.. I trying to create billing system for my office.. I am using access database. i want to know how to add,update,delete data. pls help me with a code or any example which is similar

Following articles will help you:
VB.NET - MS-Access Interaction Tutorial
Part 2 - Using ADO .NET - Access

There is, literally, millions of examples of this all over the web. All you have to do is Google for "use access database with vb.net".