Database, Cloud and Migration Guides

Practical database guides, cloud migration notes and data engineering fixes for Oracle, SQL Server, MySQL, PostgreSQL, MongoDB, Percona, AWS, Azure, GCP, DigitalOcean and on-premises platforms.

Database OpsBackup, restore, HA/DR, security, monitoring, tuning and troubleshooting for production systems.

Cloud PlatformsHands-on notes for RDS, DMS, Glue, Azure SQL, Synapse, Data Factory and managed data services.

Migration GuidesPlanning, validation, replication, zero-downtime cutovers and post-migration checks.

DatabaseCloudMigrationDBAData EngineeringAutomationTroubleshooting

Smart Buses, Smarter Operations: Building an AI-Powered Fleet Platform on AWS

Selva September 05, 2026 0 Comments

Introduction Public transportation systems generate massive volumes of operational data every second. Bus locations, passenger occupancy, ...

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Amazon RDS Aurora PostgreSQL AWS DMS AWS PostgreSQL Data Engineering Database Administration Migration Troubleshooting Zero Downtime

RDS PostgreSQL to Aurora PostgreSQL: Multi-Tenant to Single-Tenant Data Sync Using AWS DMS

Selva August 28, 2026 0 Comments

Using an RDS PostgreSQL Read Replica as the CDC source to minimize production impact Reference architecture used in the tested migration...

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