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System Management
The System Management is the central administrative unit for WinCC OA Systems.
Database
NextGen Archiver (NGA)
The NextGenArchive (NGA) for is a archiving solution which extends flexibility while keeping the possibilities and strengths of the current methods. This chapter provides an overview of the NGA feature.
PostgreSQL® Database Overview
PostgreSQL® Notes

System Management
The System Management is the central administrative unit for WinCC OA Systems.
- System management
- Diagnostics
- Reports
- Database
  - Data backup in WinCC OA
  - Supported Database Combinations
    An overview over the possible database combinations within a WinCC OA project.
  - WCCOAtoolCreateDb
  - Upgrading a project using ISO character sets to UTF8 character sets
  - History DB
  - Archive/Export Alerts
  - ASCII Manager
    The ASCII Manager allows you to input and output and thus edit data points and data point types and to configure data points.
  - Online Backup
  - Steps of the online DB backup process
  - Archiving and Compression
  - Data Point Groups
    The main purpose of grouping data points is to simplify selection of datapoints and datapoint elements.
  - PowerConfig Editor
  - RDB Archiving
  - RDB Compression
  - RDB Log
  - HDB/RAIMA - RDB Parallel
  - OLE DB Provider
    OLE DB is a Microsoft specification for accessing data on different computers. It is based on Microsoft's COM technology and is the successor to the older and limited ODBC technology.
  - NextGen Archiver (NGA)
    The NextGenArchive (NGA) for is a archiving solution which extends flexibility while keeping the possibilities and strengths of the current methods. This chapter provides an overview of the NGA feature.
    - General Terms and User Model
    - Requirements and Installation
    - Licensing
      This chapter describes the NGA license options and available package sizes.
    - Deployment Scenarios
    - Configuration
    - InfluxDB®
    - PostgreSQL® Database Overview
    - MS SQL®
    - Redundancy
    - Using a Remote Backend with Encryption
    - Notes and Restrictions
    - Internal Data Points
    - Database Maintenance
      Overview of the database maintenance chapters for the NGA backends.
    - Debug Flags
    - CTRL Functions for NGA Access
    - HDB/RAIMA Migration
    - NGA Importer
    - NextGen Archiver (NGA) - FAQ
  - SQLite®
- Driver
- Driver IEC
- Driver OPC
- Driver S7
- SmartSCADA
- Permission
- Communication
- Settings

PostgreSQL® Notes

Suggestions to enhance the security (only for advanced users)

It is a good practice to create a white list for the hosts that are allowed to access the database in the file /db/wincc_oa/localdb/postgresql/pgdata/pg_hba.conf
Restrict the permitted addresses for database communication with the setting listen_addresses in the file /db/wincc_oa/localdb/postgresql/pgdata/postgresql.conf. within the project directory.