Datical DB runs on the following platforms and software.

Hardware Requirements

Processor: Intel® Core™ i5 or better, 4 CPUs or more.
Memory: 4 GB - 8 GB or more. When working with large databases, 16 GB or more may be required due to high memory requirements during packaging.
- See Increase the amount of RAM used by Liquibase Enterprise.
Disk Space: 1 GB (for Datical Client) + 2-10 GB (for files) or more

Software Requirements

Operating System

Windows
- Windows 7, 8, 10
- Windows Server 2008, 2012, 2016, 2019, 2022
Linux
- CentOS 6, 7, 8
- Red Hat Enterprise Linux (RHEL) 6, 7, 8, 9
- Note that CentOS 8 and RHEL 8 are only supported with Datical DB versions 7.16 or higher.

Software

Java
- For Enterprise versions 8.0 and later:
  - Java 11 is required
  - OpenJDK Version 11.0.15_10 (Java 11) is installed and used by default
- For Enterprise versions 7.18 and lower:
  - Java 8 is required
- You can configure Datical DB to use a specific version (within the major version requirement). See Overriding Java Use.
JDBC drivers: set up during installation
Source Configuration Management (SCM)

Internet Access

You normally need internet access from the hosts where you install Datical DB. If you access the internet through a proxy server you need to configure your browser and Datical DB to use it.

Browser: See browser instructions to set it up to use a proxy server. Use a browser to download the Datical DB installation package.
Datical DB: See Use a Proxy Server with Datical DB. After installation you use Datical DB to set up Datical DB updates, download JDBC drivers, and install plugins for Source Code Management (SCM).

If you do not have internet access from the hosts where you want to install Datical DB, you can download files to use for installation and updates. Move them to where those hosts have network access to it.

Database Requirements

The following databases are supported.

Database	Versions	Notes
IBM DB2
IBM DB2 LUW	11.1 11.5	Support for 11.5 was added in release 7.12
DB2 z/OS	12.1.5	Support for 12.1.5 was added in the 8.2 release
Microsoft SQL Server
Microsoft SQL Server	2014 2016 2017 2019 2022	JDBC driver supports TLS 1.0, 1.1, and 1.2 (Support for 2017 & 2019 was added in 7.9 release) (Support for 2012 was dropped in 8.5 release) (Support for 2022 was added in 8.5 release)
Azure SQL Database	Latest Compatibility Level	As of the 7.9 Release
Azure SQL Managed Instance	Latest Compatibility Level	As of the 7.10 Release
Oracle
Oracle	19c 21c
Oracle on Amazon RDS	19c version 19.0.0.0 21c version 21.0.0.0	Oracle on Amazon RDS has some different behaviors than on-prem Oracle. The permissions required for the Datical user are slightly different and the backup configuration is different.
Postgres
EDB Postgres Advanced Server	12 13 14 15	Support for 13 was added in the 8.2 release Support for 14 and 15 was added in the 8.5 release
PostgreSQL Community	12 13 14 15	Support for 12 & 13 was added in the 7.15 release Support for 14 was added in the 8.2 release Support for 15 was added in the 8.5 release
PostgreSQL on Amazon RDS	12 13 14 15	Support for 12 & 13 was added in the 7.17 release Support for 14 was added in the 8.2 release Support for 15 was added in the 8.5 release
PostgreSQL on Amazon Aurora	12 13 14 15	Support for 12 & 13 was added in 7.17 release Support for 14 and 15 was added in the 8.5 release
PostgreSQL on Azure Database (single server)	11	Support for 11 was added in the 8.2 release

Database Setup

For a general overview of the schema or databases required for a release pipeline, see Overview of the Database Components Used by Liquibase Enterprise.

You typically need to create the following objects:

REF database - Serves as the first step in any release pipeline. It is the CI deployment target when Datical DB packages SQL scripts and refactors them into changesets.
Tracking database or schema - Tracks the changes deployed to each database in the pipeline. A tracking database or schema is needed for each database in the release pipeline.
DMC Database - Records operations for Datical DB release pipelines. DMC (Deployment Monitoring Console) provides you a centralized location to view status and reports across Datical projects.

For instructions on setting up Datical DB to work with your database, see the section for your database type in Configuring Databases for Liquibase Enterprise Release Pipelines.

You typically need to do the following tasks:

Install a database client.
Create a DATICAL USER and DATICAL PACKAGING. Give them the required permissions. Datical DB operates as those users to deploy changes to the databases in the release pipeline.