Amazon Database Migration Service vs Ispirer SQLWays

Amazon Database Migration Service (AWS DMS) is a SaaS service for moving relational databases, data warehouses, NoSQL databases and other data stores to AWS or between cloud and on-premises environments. It handles one-time migrations and continuous replication, with support for both like-for-like and cross-engine moves. AWS says more than 20 databases and data warehouses can serve as source or target endpoints. DMS Schema Conversion assesses schemas and converts many code objects, including views, stored procedures and functions, while identifying work that needs manual conversion. DMS Serverless provisions and scales capacity according to transaction volume, billed hourly. Multi-AZ deployment uses redundant replication instances, and interrupted migrations can resume. API and AWS CLI support automation, while CloudTrail and CloudWatch Logs provide integrations. TLS, VPC deployment, PrivateLink and column masking are available. At least one endpoint must be Amazon RDS or EC2; on-premises-to-on-premises replication is unsupported. The AWS Free Tier offers free with credits.

Ispirer SQLWays automates conversion between different database systems, including schema, data, tables, stored procedures, functions, triggers, and views. Migration options include data type mapping, migration queries, conversion reports, file output, object name mapping, dependency handling, and query testing. The product supports databases on Windows, Linux, or Unix, including on-premises and cloud environments, even when source and target operating systems differ. It connects to source databases through ODBC drivers and uses native utilities for target connections. Named cloud environments include Google Cloud Platform, Amazon Aurora, and Azure SQL DB. SQLWays can use a custom AI provider or local models; its built-in AI chat can help resolve errors, refactor code, and generate documentation. AI verification compares converted results with the source, fixes issues it finds, and flags complex structures for attention. Command line mode supports scripted, repeatable or phased migrations, including multithreaded work. Ispirer says SQLWays uses read-only privileges, does not modify the original system, and does not transfer data to third parties. A 14-day trial is available, limited to 2 GB, 20 database objects, and 1,500 measured lines of code. Listed licenses include Light at $395 a month for a 1-month license and Starter at $719 as a one-time purchase for a 3-month license.