Is it possible to return dynamic objects or Dataset from a Sqlite Query?

Question

I am using Sqlite.Net in my Xamarin.Forms application. So far it has been great at returning lists of objects if my object is a class like so:

Sq         


        

Answer 1

SQLite.NET PCL is a .NET wrapper around sqlite.

Therefore you can query similar to EF by using a join in in LINQ or Lambda than in the Query. The wrapper will handle the conversion to sqlite query for you.

You can then return a new datatype of the joined type or a dynamic type.

Note : Joins are not directly supported in sqlite (more info) and work around is mentioned here.

Sample code:

var conn = new SQLiteConnection(sqlitePlatform, "foofoo");
var query = from customer in conn.Table().ToList()
            join call in conn.Table().ToList()
                         on customer.ID equals call.CustomerId                
            select new { Customer = customer , Calls = call };

Lambda version:

conn.Table().ToList().Join
(conn.Table().ToList(),
customer => customer.Id,
call => call.CustomerId, 
(customer, call) => new { Customer = customer, Calls = call });