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Microsoft Data Access Components and ADO.NET. CIS 764 – Presentation Somil Chandwani. MDAC.

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Microsoft data access components and ado net

Microsoft Data Access Components and ADO.NET

CIS 764 – Presentation

Somil Chandwani


MDAC

  • With Microsoft Data Access Components (MDAC), developers can connect to and use data from a wide variety of relational and nonrelational data sources. You can connect to many different data sources using ActiveX Data Objects (ADO), Open Database Connectivity (ODBC), or OLE DB.



ADO

  • ADO: ActiveX Data Objects (ADO) provides a high-level programming model that will continue to be enhanced. Although a little less performance than coding to OLE DB or ODBC directly, ADO is straightforward to learn and use, and it can be used from script languages, such as Microsoft Visual Basic Scripting Edition (VBScript) or Microsoft JScript.


Ole db
OLE DB

  • OLE DB: OLE DB is a comprehensive set of COM interfaces for accessing a diverse range of data in a variety of data stores. OLE DB providers exist for accessing data in databases, file systems, message stores, directory services, workflow, and document stores. OLE DB core services (although not every OLE DB provider) is available on the 64-bit Windows operating system.


ODBC

  • ODBC: The Microsoft Open Database Connectivity (ODBC) interface is a C programming-language interface that allows applications to access data from a variety of Database Management Systems (DBMS). Applications that use this API are limited to accessing relational data sources only. ODBC is available on the 64-bit Windows operating system.


Ado net
ADO.NET

  • ADO.NET is an evolutionary improvement over traditional ADO for creating distributed, data-sharing applications. It is a high-level application-programming interface that is targeted at loosely coupled, n-tier, Internet-based applications that support disconnected access to data. It is a core component of the Microsoft .NET Framework.


Overview of ado net
Overview of ADO.NET 

ADO.NET provides consistent access to data sources such as Microsoft SQL Server and XML, as well as to data sources exposed through OLE DB and ODBC. Data-sharing consumer applications can use ADO.NET to connect to these data sources and retrieve, manipulate, and update the data that they contain.


Design goals for ado net
Design Goals for ADO.NET

  • Leverage current ActiveX Data Objects (ADO) knowledge.

  • Support the n-tier programming model.

  • Integrate XML support.



Net framework data providers
.NET Framework Data Providers

  • .NET Framework Data Provider for SQL Server - Provides data access for Microsoft SQL Server version 7.0 or later. Uses the System.Data.SqlClient namespace.

  • .NET Framework Data Provider for OLE DB - For data sources exposed using OLE DB. Uses the System.Data.OleDb namespace.

  • .NET Framework Data Provider for ODBC - For data sources exposed using ODBC. Uses the System.Data.Odbc namespace.

  • .NET Framework Data Provider for Oracle - For Oracle data sources. The .NET Framework Data Provider for Oracle supports Oracle client software version 8.1.7 and later, and uses the System.Data.OracleClient namespace.


Ado net dataset
ADO.NET DataSet


What s new in ado net
What's New in ADO.NET 

  • Server Enumeration

  • Asynchronous Processing

  • Multiple Active Result Sets (MARS)

  • DataSet Enhancements

  • Binary Serialization for the DataSet

  • DataView Performance Improvements

  • XML/XSD Enhancements


References
References

  • www.msdn.microsoft.com

  • en.wikipedia.org/wiki/ADO.NET

  • en.wikipedia.org/wiki/Microsoft_Data_Access_Components



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