Question

I am using the sqlite v3, i have the table which has some columns of data type ‘bit’. I have inserted some data in this table with value ‘true’ in bit columns, But the problem is that when i retrieve the data using C# code it always return the value ‘false’.

The same query and same database is working fine for my android application. But, when i retrieve these data from C# or windows, than it returns the unusual results.

Sqlite admin shows the correct result in query pane…..
I am using chrome browser….
My C# code is

SQLiteConnection sqlite_connection =null;

        if(isTrans)
            sqlite_connection = sqliteTrans.Connection;
        else
            sqlite_connection = this.ConnectionInstance;

        try
        {  
            SQLiteCommand sqlite_command = new SQLiteCommand("SELECT AdditionalServices, VitalObservation from tblReadonlyPatientData where SubscriptionID = 1306", sqlite_connection);
            SQLiteDataReader reader = sqlite_command.ExecuteReader();
            StringBuilder queryToExecute = new StringBuilder();

            while (reader.Read())
            {
                queryToExecute.Append(reader.GetString(0));
            }

            // always call Close when done reading. 
            reader.Close();
            reader = null;
            sqlite_command = null

        }
            catch (Exception e)
            {
                clsException.ExceptionInstance.HandleException(e);
                throw;
            }
            finally
            {
                if (!isTrans && sqlite_connection != null)
                {
                    if (sqlite_connection.State == System.Data.ConnectionState.Open)
                        sqlite_connection.Close();                    
                }
            }     

These columns are the bit datatype and ‘true’ values but returns false.

Answer 1

i have update the sql lite query and cast the bit columns into nvarchar, so it return me the string in ‘true’ or ‘false’ format

SQLiteCommand sqlite_command = new SQLiteCommand("SELECT Cast(AdditionalServices as nvarchar(10)) as AdditionalServices, Cast(VitalObservation as nvarchar(10)) as VitalObservation from tblReadonlyPatientData where SubscriptionID = 1306", sqlite_connection);