Using the ADO.NET Entity Framework Data Provider
The Entity Data Model wizard asks questions that help you to define the components in your Entity Data Model (EDM). The wizard then creates a model of your data in Visual Studio, and automatically sets values for the components in the model. See Using an .edmx File for information about using the wizard to create an EDM.
Alternatively, you can use other tools in Visual Studio to define values and connection strings manually.
Provider is an attribute of the Schema element in the storage model file of an EDM. The storage model file is written in the store schema definition language (SSDL).
The Entity Data Model wizard assigns the value when you select the PSQL ADO.NET Entity Framework data provider. If you choose to manually define an Entity Data Model, assign the string Pervasive.Data.SqlClient to the Provider attribute of the Schema element, as shown in the following example:
<Schema Namespace="AdventureWorksModel.Store" Alias="Self" Provider="Pervasive.Data.SqlClient" ProviderManifestToken="PSQL" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2006/04/edm/ssdl">