SQL Server and C#: get last inserted id

Question

public static void CreateSocialGroup(string FBUID)
{
    string query = \"INSERT INTO SocialGroup (created_by_fbuid) VALUES (@FBUID); SELECT @@IDENTITY AS LastID\";
         


        

Answer 1

If your server supports the OUTPUT clause you could try it with this one:

public static void CreateSocialGroup(string FBUID)
{
    string query = "INSERT INTO SocialGroup (created_by_fbuid) OUTPUT INSERTED.IDENTITYCOL VALUES (@FBUID)";

    using (SqlConnection connection = new SqlConnection(ConnectionString))
    {
        SqlCommand command = new SqlCommand(query, connection);
        command.Parameters.AddWithValue("@FBUID", FBUID);

        connection.Open();
        var _id = command.ExecuteScalar();
    }
}