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A few of them exist. I played a bit on the SQL section of HackerRank in the past: https://www.hackerrank.com/domains/sql https://www.hackerrank.com/domains/sql
by speedgoose 3y ago
A few of them exist. I played a bit on the SQL section of HackerRank in the past: https://www.hackerrank.com/domains/sql https://www.hackerrank.com/domains/sql
- novoreorx 3y agoThat is an excellent source. I'll explore it a bit.