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Key Highlights
- 62% reduction in annual database licensing costs
- 3.2x improvement in read query performance
- 99.99% availability post-migration
- 40% reduction in DBA operational overhead
- 45-minute production cutover
- Migration completed in 12 weeks
About Customer
The Challenge
The Solution
Mactores structured the migration into two deliberate phases. Assess first, execute second, so every risk was mapped before anything moved.Phase 1: Assessment with Aedeon DB Agent (2 Weeks)
Mactores deployed the Aedeon DB Agent — an AI-powered assessment engine that automates database discovery, compatibility analysis, and migration planning. Aedeon DB Agent scans source databases and produces a comprehensive migration blueprint by:
- Analyzing database version configurations
- Mapping application dependencies and data flows
- Scanning stored procedures and application code for compatibility issues
- Evaluating schema structures and object relationships, and estimating conversion effort with specific risk flags.
In 2 weeks, Aedeon DB Agent processed over 10,000 lines of T-SQL code across 600+ database objects and mapped 47 application dependencies.
Aedeon DB Agent delivered a detailed migration roadmap with time estimates, risk assessments, and a recommended target architecture (Aurora PostgreSQL). A typical manual assessment of this scope takes 6–8 weeks.
Phase 2: Migration Execution (10 Weeks)
With the roadmap in hand, Mactores executed the migration in structured phases. Schema conversion achieved a 94% auto-conversion rate via the Aedeon DB Agent. The remaining 6% (~36 objects) required manual refactoring — mostly complex T-SQL cursor logic and SQL Server-specific CTE patterns that needed PostgreSQL-native equivalents.
Data migration used CDC-based incremental replication to keep the source and target in sync during the transition period. Mactores’ automated validation suite ran continuous checksum verification, row-count reconciliation, and application-level testing throughout. The final production cutover was completed in a 45-minute scheduled maintenance window with zero data loss.
The Results
The entire migration process took 12 weeks, achieving:
- 62% reduction in annual database licensing costs — from ~$380K/year in SQL Server Enterprise licensing to ~$145K/year on Aurora PostgreSQL.
- 3.2x improvement in read query performance — PostgreSQL’s query planner, combined with Aurora’s distributed storage, outperformed the tuned SQL Server setup on the marketplace’s read-heavy workload.
- 99.99% availability post-migration — up from 99.95% on self-managed SQL Server infrastructure.
- 40% reduction in DBA operational overhead — Aurora managed services eliminated manual patching, backup management, and most scaling operations.
- 45-minute production cutover — during a scheduled maintenance window, with zero data loss.
Get Your Free Migration Assessment
Every migration starts with understanding what you have. Mactores’ Aedeon DB Agent accelerator can assess your database environment in weeks, delivering a detailed migration roadmap with time estimates, risk flags, and target architecture recommendations. Whether you’re migrating from Oracle, SQL Server, or another commercial database to PostgreSQL, MySQL, or a managed cloud service, we’ll show you exactly what it takes.
Request a 30-minute working session with us today, where we’ll:
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Review your Oracle footprint & Java dependencies
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Identify the fastest low-risk path (Aurora/RDS)
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Outline what a full assessment would cover
