When i select from sqlite column of type 'int' I can cast to .net int but when I select from 'integer' column I cannot

Question

I\'m using System.Data.SQLite, selecting from a sqlite database table where a column has type \'integer\', and when I do something like this:

int x = (int)reade         


        

Answer 1

The exception occurs because datareader.Item[] returns object.

The problem is due to boxing/unboxing. It's nothing to do with the database itself...

long a = 1; 
int b = 2; 
object objectA = a; 
object objectB = b; 
Console.WriteLine((int)a); 
Console.WriteLine((long)b); 
Console.WriteLine((int)objectA); 
Console.WriteLine((long)objectB); 

Console outputs 2 then 1, but will throw an exception on the cast of objectA, objectB. This is a characteristic of .NET nothing to do with ODBC drivers.