Select Star SQL is an interactive book that teaches SQL by running queries against a real-world dataset.
Free
24 alternativesSQL PD
vsbackend-challenges
SQL PD vs backend-challenges
How do SQL PD and backend-challenges compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | SQL PD | backend-challenges |
|---|---|---|
| What it is | SQL Police Department teaches SQL through online crime-solving missions that require building queries and reviewing results. | backend-challenges lists open-source coding challenges based on real job requirements. |
| Website | ||
| Type | Website | Open-source project |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Not recorded |
| Open source | Not stated | Yes |
| Language | English | English |
| Alternatives |
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