“The data reader has more than one field” error in Entity Framework

Question

I\'m executing this simple query with Entity Framework

db.Database.SqlQuery(\"SELECT * FROM hospital\");

But I got this error

Answer 1

It would be useful to see what the hospital table looks like but assuming something simple like hospital consists of HospitalId and HospitalName then you have a couple of choices.

db.Database.SqlQuery>("SELECT hospitalName FROM hospital"); //would work if all you're trying to do is get the Name

db.Database.SqlQuery("SELECT * FROM hospital"); //where you define MyEntity as the same structure as the table would work

db.Database.SqlQuery>>("SELECT * FROM hospital"); // would theoretically work although I haven't tried it.  Where the Tuple items would have to match the database types in order.  I.e. if field 1 is an int and field 2 is a string then Tuple

Basically the error is the code doesn't know how to stuff the structure of hospital into a string