Question

I am trying to write a query in linq that returns results like this:

PeopleEntities pe = new PeopleEntities();
String fName = "Τάκης";
var people = pe.Person.Where(per => per.FirstName.Equals(fname)).ToList();

When I dump the query using

String query = ((ObjectQuery)pe.Person.Where(per => per.FirstName.Equals(fname))).ToTraceString();
Console.WriteLine(query);

and then using the query in a MySQL WorkBench providing a value, everything works fine but in code the query returns nothing.

Edit: I have connected entity manager by using a MySQL connector. I hadn’t thought about it earlier but this is the problem as with an MsSQL connection everything works fine

Any ideas on how I can execute the above?

Answer 1

In a regionally-sensitive query, you should not use string.Equals() without providing a StringComparison value, e.g.:

var people = pe.Person.Where(
    per => per.FirstName.Equals(fname, StringComparison.CurrentCultureIgnoreCase));

Yes, this overload is supported in L2E.

If that still does not work, it is possible that the AppDomain’s current culture or the DB’s collation is wrong. Look at the query/params in SQL Profiler.