LINQプロバイダをまとめてみました。いろいろありますね。 Linq To Oracle The Linq To Oracle project provides a custom query provider for Oracle databases. ... LINQ to Active Directory LINQ to Active Directory implements a custom LINQ query provider that allows querying objects in Active Directory. ... LINQ to LDAP LINQ provider built on top of System.DirectoryServices.Protocols for querying and updating LDAP servers. ... Exc