问题
I am trying to do this in petapoco
var people
= db.Query<Person>("SELECT * FROM people").Where(p =>
p.FirstName.Equals("George") && p.LastName.Equals("Clooney")).ToList();
the problem is that it gets the entire set of records from the database and then performs the filtration on it. I tried Fetch instead of query, same result.
How do I write the query so that it sends the query to get the filtered results from the database, instead of doing the filtering at the webserver?
回答1:
var people = db.Fetch<Person>("where firstname = @0 and lastname = @1",
"George", "Clooney");
or using NPoco (which which is based off PetaPoco) this is also possible
var people = db.FetchWhere<Person>(x=>x.FirstName == "George"
&& x.LastName == "Clooney");
来源:https://stackoverflow.com/questions/18391875/peta-poco-where-clause