- It works only with SQL Server Database
- To maintain the relation it generates a .dbml
- It cannot generate database from model
- It permits one to one mapping between the entity classes and relational views/tables
- It enables you to query data using DataContext
- It provides tightly coupled approach
| - It works with various database like DB2, MYSQL, SQL Server etc.
- It creates an .edmx files initially and relation is maintained using 3 different files .msl, .csdl and .ssdl
- It can generate database from model
- Between the entity classes and relational tables, it permits one-to-one, one-to-many and many-to-many
- It enables you to query data using EntitySQL, DBContext, and ObjectContext
- It provides loosely coupled approach
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