ADO.NET

Steps

• Install FirebirdSql.Data.FirebirdClient from NuGet.
• Add using FirebirdSql.Data.FirebirdClient;.
• Basic classes are FbConnection, FbTransaction, FbCommand and FbDataReader.
• Connection string can be built using FbConnectionStringBuilder.

Code

using (var connection = new FbConnection("database=localhost:demo.fdb;user=sysdba;password=masterkey"))
{
	connection.Open();
	using (var transaction = connection.BeginTransaction())
	{
		using (var command = new FbCommand("select * from demo", connection, transaction))
		{
			using (var reader = command.ExecuteReader())
			{
				while (reader.Read())
				{
					var values = new object[reader.FieldCount];
					reader.GetValues(values);
					Console.WriteLine(string.Join("|", values));
				}
			}
		}
	}
}

Scripts

create table demo (id int primary key, foobar varchar(20) character set utf8);

insert into demo values (6, 'FooBar');