问题
Is it possible to attach multiple DBs to SQL CE 3.5 (Compact edition) e.g. MasterData.sdf, Orders.sdf and apply queries against them e.g.: select Orders.iOrderID, Orders.cItemID, MasterData.cItemDesc from Orders.CustomerOrder as Orders left join MasterData.Items as Items on Orders.cItemID = Items.cItemID
I need this because of sync optimization (many small databases vs. one big database).
Is there any other solution to merge two (many) sdf-s into one ?
回答1:
No, this is not possible - but you could load each table as a list of business objects, and use LINQ to query cross these collections. (Requires more memory)
来源：https://stackoverflow.com/questions/2067903/sql-compact-3-5-attach-multiple-db-cross-db-query