Field notes from an Oracle DBA: changes, projects, upgrades, patching, performance and solved incidents — every command tested, every name anonymised.https://valentin-cojocaru.pages.dev/en/enSun, 15 Nov 2026 01:55:09 GMT1440https://valentin-cojocaru.pages.dev/en/about/https://valentin-cojocaru.pages.dev/en/about/Step-by-step guides from an Oracle DBA (11g, 12c, 19c), plus MariaDB and MySQL: upgrades, patching, RMAN, Data Guard, performance and solved incidents. Every command is tested and every customer, host and database name is anonymised. New guides land in this feed as soon as they are published.Sat, 14 Nov 2026 12:00:00 GMTsite