Databases in .NET
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This document discusses databases and data access in .NET. It covers database engines, ADO.NET, SQL Client for connecting to SQL Server, transactions and isolation levels. Object-relational mapping (ORM) frameworks like Entity Framework and LINQ to SQL are presented as alternatives to directly working with databases that map objects to relational data. Entity Framework's design approaches and capabilities like mapping, querying data, and inheritance strategies are demonstrated.
Databases in .NET
- 1. Databases in .NetVictor HaydinEleks Software Ltd.
- 2. Data and DatabasesComputer science is not about computing. Its about data processing.
- 4. Application/DB interactionFrontend ServerPresentation LayerBusiness Logic LayerData Access LayerDatabase driversDatabase Server
- 5. ADO.Net
- 6. System.Data.SqlClientSystem.Data.SqlClient – set of classes for low-level operations with MS SQL Server.
- 8. Transactions & Isolation levels
- 10. ORM
- 11. Why ORM?Relational Model:TablesRowsColumnsPrimary/Foreign keys?Object Model:CollectionsObjectsPropertiesCompositionInheritance
- 12. ORM FrameworksEntity FrameworkLINQ2SQLNHibernateDevExpress XPOSubsonicObjectMapper.NetSelf-made
- 13. ADO.Net Entity FrameworkDesign approaches:Database First
- 14. Model First
- 15. Code FirstEntity Data Model:Mapping
- 16. Entities
- 17. Relationships
- 18. Schema Definition LanguageQuerying Data:eSQL
- 19. LINQ to Entities
- 20. Native SQLInheritance:Table per hierarchy
- 21. Table per type
- 22. Table per concrete classdemoEntity Framework
- 24. Q&A