By updating all Oracle database versions, Pegasus adapted to the Oracle Support calendar and migrated to a better database system in every respect with the new features of 19C.

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• Pegasus Oracle database systems being old and the update requirement.
• According to the support schedule published by Oracle, there will be no support for 11G by the end of 2020.
• The requirement to upgrade to an up-to-date version according to the support schedule.

• The prerequisites and work steps were planned for the transition of all Oracle database systems within Pegasus to 19C.
• 19C transitions were carried out smoothly with detailed work plans covering test systems, local and remote standby (dataguard) databases and prepared separately for each system.

• All work, including the operating system upgrades, which is one of the biggest prerequisites for the 19C database version, was carried out systematically and in a planned manner.
• Transition to 19C database version in accordance with the Oracle support calendar and with the longest-term support.
• With many innovations brought by 19C, the technical infrastructure was made suitable for the projects needed in the corporation.