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Home/Questions/SQL/Describe the process for migrating data from an on-premises SQL database to AWS. What services and strategies would you use?

Describe the process for migrating data from an on-premises SQL database to AWS. What services and strategies would you use?

SQLeasy0.4 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
EPAM
Key Concepts Tested
sql
Expert AnswerPremium
74 wordsInterview-ready
**Architectural Logic**: Migration is phased—assessment, strategy, execution, validation. **Process**: (1) Assessment—catalog schema, volume, dependencies. (2) Strategy—lift-and-shift vs modernize; targets (RDS, Redshift, S3). (3) Tools—AWS DMS (CDC/replication), SCT (schema conversion), DataSync (bulk file). (4) Execution—bulk load historical; enable CDC; cutover. (5) Validation—row counts, checksums, sample comparison. **Why DMS**: Minimal-downtime; ongoing sync....
The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like EPAM. The answer also includes follow-up discussion points that interviewers commonly explore.

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