Microsoft Enterprise Library provides several reusable software components (application blocks) which help developers simplify common development tasks, minimize development efforts and help address common problems related to performance/optimization/reusability release over release. These components are provided along with source code which developers can use "as-is" or customize per their projects need. Data Access Application Block (DAAB) is one of these components which simplifies the data access mechanism. Data Access Application Block provides a consistent data access mechanism to execute both Stored Procedures and inline SQL statements across projects/enterprises along with transaction support also. For more details, click here for Part1 article and click here for Part 2 article.