Performing Insert OR Update (upsert) on sql server compact edition

Question

I have c# project that is using sqlserver compact edition and entity framework for data access. I have the need to insert or update a large amount of rows, 5000+ or more to

Answer 1

Given your problem statement, I'm going to guess that this software assumes a relatively beefy environment. Have you considered taking the task of determining off of sqlce and doing it on your own? Essentially, grab a sorted list of all the IDs(keys?) from the relevant table and checking every object key against that list before queueing it for insertion?

This makes a few assumptions that would be bad news with a typical DB, but that you can probably get away with in sqlce. E.g., it assumes that rows won't be inserted or significantly modified by a different user while you're performing this insert.

If the list of keys is too long to reasonably hold in memory for such a check, I'm afraid I'd say that sqlce just might not be the right tool for the job. :(