/// <summary>
        /// Allows the execution of any command from the Database synchronously only.
        /// </summary>
        /// <param name="statement">The command you want to execute in the Database.</param>
        /// <param name="outputFormat">Indicates in what format you want to receive the data resulting from the operation: MV, XML or JSON.</param>
        /// <param name="customVars">Free text sent to the database allows management of additional behaviours in SUB.LK.MAIN.CONTROL.CUSTOM, which is called when this parameter is set.</param>
        /// <param name="receiveTimeout">Maximum time in seconds that the client will wait for a response from the server. Default = 0 to wait indefinitely.</param>
        /// <returns>The results of the operation.</returns>
        public string Execute(string statement, DATAFORMAT_TYPE outputFormat = DATAFORMAT_TYPE.MV, string customVars = "", int receiveTimeout = 0)
        {
            string executeArgs      = OperationArguments.GetExecuteArgs(statement, customVars);
            byte   opCode           = (byte)OPERATION_CODE.EXECUTE;
            byte   byteInputFormat  = (byte)DATAFORMAT_TYPE.MV;
            byte   byteOutputFormat = (byte)outputFormat;
            string connectionInfo   = this._ConnectionInfo.ToString();
            string result           = Linkar.ExecutePersistentOperation(this._ConnectionInfo, opCode, executeArgs, byteInputFormat, byteOutputFormat, receiveTimeout);

            return(result);
        }
        /// <summary>
        /// Allows the execution of any command from the Database synchronously only.
        /// </summary>
        /// <param name="credentialOptions">Object with data necessary to access the Linkar Server: Username, Password, EntryPoint, Language, FreeText.</param>
        /// <param name="statement">The command you want to execute in the Database.</param>
        /// <param name="outputFormat">Indicates in what format you want to receive the data resulting from the operation: MV, XML or JSON.</param>
        /// <param name="customVars">Free text sent to the database allows management of additional behaviours in SUB.LK.MAIN.CONTROL.CUSTOM, which is called when this parameter is set.</param>
        /// <param name="receiveTimeout">Maximum time in seconds that the client will wait for a response from the server. Default = 0 to wait indefinitely.</param>
        /// <returns>The results of the operation.</returns>
        public static string Execute(CredentialOptions credentialOptions, string statement,
                                     DATAFORMAT_TYPE outputFormat = DATAFORMAT_TYPE.MV,
                                     string customVars            = "", int receiveTimeout = 0)
        {
            string executeArgs      = OperationArguments.GetExecuteArgs(statement, customVars);
            byte   opCode           = (byte)OPERATION_CODE.EXECUTE;
            byte   byteInputFormat  = (byte)DATAFORMAT_TYPE.MV;
            byte   byteOutputFormat = (byte)outputFormat;
            string result           = Linkar.ExecuteDirectOperation(credentialOptions, opCode, executeArgs, byteInputFormat, byteOutputFormat, receiveTimeout);

            return(result);
        }