---
title: Logic
slug: reference-guide-3-0-0/logic
description: Learn how to use a script to perform regular nightly backups of data from a source database using the "logically divided table rule". This script creates two separate tar files, one for configuration files and one for log files, each with specific filenam
docTags: 
createdAt: 2022-08-02T08:28:51.000Z
---

The Script backs up the data by exporting the related tables from the source database every night and storing them systematically, following the **logically divided table rule**. Thanks to this procedure, the Support Engineer or Operation Engineer will be able to restore data for a specific date whenever they want, within the defined backup timeframe.

The script creates 2 separate tar files with a specific filename pattern:&#x20;

-  for configuration files:&#x20;
  YYYYMMDD.config.tgz (four digits year, two digits month and two digits day)
-  for log files:
  YYYYMMDD.log.tgz (four digits year, two digits month and two digits day)

The config subfixed tar file contains the data related to Single Connect’s configurations such as devices, users, realms, etc.&#x20;

The Log subfixed tar file contains data related to Single Connect, such as SSH, RDP, HTTP and SAPM logs.&#x20;