Microsoft Visual Studio.NET (VS.NET) itself gives a way to implements DAL in your application. As far as I know, VS.NET gives two way to access database. The first one is by accessing it through a SQL command, I call this direct database connection. The other way is by using ADO.NET. As ADO.NET provides several components to access databases, they are adapter and dataset. While adapter is dependent to specific database, dataset is completely transparent to any kind of database. VS.NET implements a dataset as a class that provide several methods to access database. Adapter works as an intermediate between database and dataset. Its implementation contains SQL queries relevant to actions (add, edit, delete) which are going to be invoked from dataset. Remember, this only work if you use database access with dataset manipulation and not direct database access.
Implementing DAL with Microsoft Visual Studio.NET
Microsoft Visual Studio.NET (VS.NET) itself gives a way to implements DAL in your application. As far as I know, VS.NET gives two way to access database. The first one is by accessing it through a SQL command, I call this direct database connection. The other way is by using ADO.NET. As ADO.NET provides several components to access databases, they are adapter and dataset. While adapter is dependent to specific database, dataset is completely transparent to any kind of database. VS.NET implements a dataset as a class that provide several methods to access database. Adapter works as an intermediate between database and dataset. Its implementation contains SQL queries relevant to actions (add, edit, delete) which are going to be invoked from dataset. Remember, this only work if you use database access with dataset manipulation and not direct database access.
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