Ispirer SQLWays vs pgloader

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.

pgloader migrates database and flat-file data into PostgreSQL using schema translation, casting rules, and parallel loading. Listed sources are MySQL, MariaDB, MS SQL Server, SQLite, CSV, fixed-width files, and DBF; Oracle support is not built yet. Its pipeline fetches the source catalog, prepares the PostgreSQL target, runs parallel COPY, creates indexes in parallel, and completes the schema. MySQL handling includes enum translation, converting TINYINT(1) to boolean, zero-date handling, and looking up credentials in .my.cnf. The MS SQL Server path includes Azure AD authentication, sequence migration, and multi-column foreign keys. For file imports, rejected rows can be separated after a failed COPY transaction while accepted rows continue loading. Custom casting rules go in a .load file. Version 3 in Common Lisp is the stable packaged release; version 4 is a pre-release JAR requiring Java 21 or later. The free Community tier has best-effort GitHub support. Paid support starts at €100/mo, with higher tiers offering priority handling, SLA-triaged patches, roadmap input, or issue-based support. It is self-hosted on Linux.