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SQL exercises January 12, 19:19 MSK ???-100

SQL Exercises is intended for acquiring good practical experience, which is focused on data operation, namely on SQL DML. Certain exercises for beginners are provided on the site, they are supplied with the necessary reference source on SQL syntax with a great number of examples. Apart from them, 3 rating stages are suggested, they are aimed at testing of specialists and their certification. The source is absolutely free of charge, and the certificate purchase has a voluntary basis.
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Last changes in TOP 10 over exercises

Ex - exercise's number;
Pos - position in TOP 10 for this exercise;
Rating - total rating position;
Answer_time - time when exercise was solved

Involved in rating: 15329

No Ex Pos Name Rating Answer_time

1 190 9 Sarkis'yan G. (gennadi_s) 16 2026年01月12日 11:22:00

2 219 6 Petrov Y. (YuriPetrov) 32 2025年12月31日 20:06:00

3 57 2 fioletovaya (fioletovaya2) 613 2025年12月31日 10:57:00

4 215 7 Petrov Y. (YuriPetrov) 32 2025年12月30日 01:24:00

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