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Browse all notes →Cloud · AWSAWS ECS vs EKS: Simplicity vs Cloud PortabilityWhen AWS-native simplicity makes more sense than Kubernetes tooling, and when portability changes the answer.Read the guide →Databases · ArchitectureWho Thought Banks Would Move from Oracle to PostgreSQL?A practical perspective on database platform choices and the shift toward open source.Read the guide →Linux · RecoveryRecover or Reinstall the GRUB BootloaderRecovery notes for systems that fail to boot and require a GRUB repair.Read the guide →Oracle · BackupBack Up an Oracle Schema with Data PumpExport Oracle schema data using Data Pump with operational considerations.Read the guide →Command Line · SafetySafely Find and Delete Files in Linux with findIdentify matching files first, then delete with care using find.Read the guide →Oracle · TroubleshootingORA-01555 Snapshot Too Old: Developer and DBA NotesUnderstand what triggers the error and where to start your investigation.Read the guide →
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