Question

When writing manual SQL its pretty easy to estimate the size and shape of data returned by a query. I’m increasingly finding it hard to do this with LINQ to SQL queries. Sometimes I find WAY more data than I was expecting – which can really slow down a remote client that is accessing a database directly.

I’d like to be able to run a query and then tell exactly how much data has been returned across the wire, and use this to help me optimize.

I have already hooked up a log using the DataContext.Log method, but that only gives me an indication of the SQL sent, not the data received.

Any tips?

Answer 1

Looks like you can grab the SqlConnection of your DataContext and turn on statistics.

One of the statistics is ‘bytes returned’.

MSDN Reference Link