FirebirdSample.cs

using System;
using System.Text;
using FirebirdSql.Data.FirebirdClient;

namespace FirebirdExample
{
    internal class FirebirdSample
    {
        private static void Main(string[] args)
        {
            var connectionString = "User ID=sysdba;Password=masterkey;" +
                                   @"Database=localhost:D:\firebird\SAKILA.FDB;" +
                                   "Charset=NONE;";

            var sql = "SELECT * FROM ACTOR";
            try
            {
                using (var conn = new FbConnection(connectionString))
                {
                    conn.Open();
                    using (var command = new FbCommand(sql, conn))
                    {
                        using (var reader = command.ExecuteReader())
                        {
                            var sb = new StringBuilder();
                            while (reader.Read())
                            {
                                for (var i = 0; i < reader.FieldCount; i++)
                                {
                                    var data = reader[i].ToString();
                                    Console.Write(data + '\t');
                                }
                                Console.WriteLine('\n');
                            }
                        }
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine($"Veritabanı Hatası: {e.Message}");
            }
        }
    }
}