Oracle Provider for OLE DB Developer's Guide Release 9.2 Part Number A95498-01 |
|
This chapter introduces Oracle Provider for OLE DB (OraOLEDB).
This chapter contains these topics:
OLE DB is an open standard data access methodology which utilizes a set of Component Object Model (COM) interfaces for accessing and manipulating different types of data. These interfaces are available from various database providers.
OLE DB's design centers around the concept of a consumer and provider. Figure 1-1, "OLE DB Flow" is an illustration of the OLE DB system. The consumer represents the traditional client. The provider places data into a tabular format and returns it to the consumer.
OLE DB data providers are a set of COM components that transfer data from a data source to a consumer. An OLE DB Provider places that data in a tabular format in response to calls from a consumer. Providers can be simple or complex. A provider may return a table, it may allow the consumer to determine the format of that table, and it may perform operations on the data.
Each provider implements a standard set of COM interfaces to handle requests from the consumer. A provider may implement optional COM interfaces to provide additional functionality.
With the standard interfaces, any OLE DB consumer can access data from any provider. Because of COM components, consumers can access them in any programming language that supports COM, such as C++, Visual Basic, and Java.
The OLE DB data consumer is any application or tool that utilizes OLE DB interfaces of a provider to access a broad range of data.
Oracle Provider for OLE DB (OraOLEDB) is an OLE DB data provider that offers high performance and efficient access to Oracle data by OLE DB consumers.
In general, this developer's guide assumes that you are using OraOLEDB through OLE DB or ADO.
For sample code, the latest patches, and other technical information on the Oracle Provider for OLE DB, go to
http://otn.oracle.com/tech/windows/ole_db
With the advent of the .NET framework, support has been provided for using the OLE DB .NET Data Provider with OraOLEDB. With the proper connection attribute setting, an OLE DB .NET Data Provider can utilize OraOLEDB to access Oracle.
See Also:
"OLE DB .NET Data Provider Compatibility" for further information on support for OLE DB .NET Data Provider |
The following items are required on a system to use Oracle Provider for OLE DB:
www.microsoft.com/data/oledb/
Oracle Provider for OLE DB is included as part of your Oracle installation. It contains the features and demos that illustrate how to use this product to solve real-world problems.
See Also:
The Oracle9i Database Installation Guide for Windows for installation instructions |
During the installation process, the files listed in Table 1-1 are installed on the system.
|
Copyright © 1999, 2002 Oracle Corporation. All Rights Reserved. |
|