What is the difference between the OLE DB and ADO.NET data sources in SSIS?

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Answered by suresh

Difference between OLE DB and ADO.NET Data Sources in SSIS

When working with SQL Server Integration Services (SSIS), it is important to understand the difference between OLE DB and ADO.NET data sources.

OLE DB Data Source:

  • OLE DB (Object Linking and Embedding Database) is a Microsoft technology that allows applications to access a wide range of data sources.
  • OLE DB provides high-performance access to relational databases such as SQL Server, Oracle, and DB2.
  • OLE DB uses COM (Component Object Model) to access data sources, making it efficient for transferring large volumes of data.
  • OLE DB is the preferred choice for connecting to relational databases in SSIS packages.

ADO.NET Data Source:

  • ADO.NET (ActiveX Data Objects .NET) is a set of classes in the .NET Framework used to access data sources.
  • ADO.NET provides a more flexible and efficient approach for working with data, especially when dealing with disconnected data sources.
  • ADO.NET is well-suited for working with data in XML format and can be used to connect to a wide range of data sources including databases, web services, and XML files.
  • ADO.NET is recommended when working with data sources that do not have native OLE DB providers.

In summary, OLE DB is commonly used for connecting to relational databases in SSIS, while ADO.NET is preferred for working with a variety of data sources including databases, web services, and XML files.

Understanding the differences between OLE DB and ADO.NET data sources can help you choose the appropriate connection type for your SSIS packages based on the specific requirements of your data sources.

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