Side by side
pgTAP vs SQLancer
Both stand on database testing tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxSelf-hosted
Choose pgTAP when PostgreSQL database testing belongs inside a self-hosted SQL workflow and you need TAP results. Its broad assertions and rollback-enabled xUnit style cover schema and behavior checks. Look elsewhere if you need remote installation or a committed support and maintenance service.
Visit pgTAP Free plan LinuxMacWindows
SQLancer combines generated SQL testing with multiple test-oracle methods across a broad listed set of database implementations. Check the supported DBMS versions and configure a bug-count or timeout stop if needed.
Visit SQLancerThe facts
| pgTAP | SQLancer | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Self-hosted | Linux, Mac, Windows |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | pgtap.org | sqlancer.github.io |
| On database testing tools | #20 of 28 | #16 of 28 |
pgTAP: what it does well
- Checks tables, columns, keys, and function signatures
- Exercises views, procedures, rules, triggers, and database values
- Supports psql scripts and xUnit-style test functions
- TAP output works with harnesses and pg_prove
- Per-test rollback with setup and teardown hooks
What to know first
- Requires PostgreSQL 9.1 or newer
- Must run on a host with PostgreSQL installed
- Remote installation is unavailable
- License provides no support or maintenance obligation
SQLancer: what it does well
- Free under the MIT License, with no paid tiers listed.
- Supports Linux, macOS, and Windows.
- Lists 21 supported database implementations.
- Offers several named test oracle methods.
- Can run DuckDB, H2, and SQLite embedded.
What to know first
- Requires Java 11 or above and Maven.
- Runs may continue indefinitely without a stopping option.
- Other DBMS versions may produce false alarms.
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