OLE DB (Object Linking and Embedding, Database, sometimes written as OLEDB or OLE-DB) is an API designed by Microsoft for accessing different types of data stored in a uniform manner. It is a set of interfaces implemented using the Component Object Model (COM); it is otherwise unrelated to OLE. It was designed as a higher-level replacement for, and successor to, ODBC, extending its feature set to support a wider variety of non-relational databases, such as object databases and spreadsheets that do not necessarily implement SQL.
Connection
Comments
User fields
Note: User fields provide a convenient way of storing additional data
Creating New Ole DB connection
In the Name Text Box type in a new name for the connection you are about to create
Type in the connection string or use Build Connection String button to create one.
Click OK to close the connection properties window
Ole DB is one of the slowest ways of accessing the data and it uses a lot of memory.
It is not recommended for very large datasets.