SQL exercises

January 24, 06:51 MSK

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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Top 100 results achieved on 10 latest exercises

(21DML, 25DML, 27DML, 28DML, 29DML, 43DML, 48DML, 51DML, 55DML, 236)

No	person	exs	score	minutes	last_ex
1	Chernov D.V. (Kursist)¹	10/10(0)	18	186	dml 28 (2022-01-15)
2	Koptel'tsev V. (selber)³⁰	10/10(6)	18	311	dml 28 (2022-01-16)
3	Varenikov D.M. (Dmitriy Varenikov)¹⁸	10/10(0)	18	602	dml 28 (2022-01-20)
4	Kreslavskij O.M. (Arcan)⁴	10/10(0)	18	634	dml 28 (2022-01-20)
5	Filipas I.M. (Axocopan)¹⁸²	9/10(0)	17	548	dml 55 (2022-01-19)
6	Komarov A.N. (Shveda Saulya)⁶⁷	8/10(0)	12	54	dml 28 (2022-01-18)
7	Petrov Y. (YuriPetrov)³⁴	8/10(0)	12	226	dml 28 (2022-01-21)
8	Kurochkin P.A. (qwrqwr)¹⁰	8/10(0)	12	2744	dml 28 (2022-01-20)
9	Shkarednyj I.N. (Gosha)³⁵	8/10(0)	12	3422	dml 28 (2022-01-16)
10	Latyntsev N.G. (aks_nsk)⁵⁰	7/10(0)	10	393	dml 28 (2022-01-16)
11	Lazareva E. (lea_22)²⁹⁰	7/10(0)	10	3055	dml 28 (2022-01-19)
12	gls (gls52)¹⁹⁷	5/10(0)	6	39	dml 28 (2022-01-22)
13	Isaev V.Yu. (Valer4N1)⁴⁶⁶	5/10(0)	6	732	dml 29 (2022-01-23)
14	Sigankov V.I. (vasilyvanc)³¹	4/10(0)	4	53	dml 27 (2022-01-23)
15	Sopulyak (takoysebeproger)⁵⁸⁰	3/10(0)	3	26	dml 27 (2022-01-17)
16	Novozhilov A. (BertokMo)⁵⁶⁵	3/10(0)	3	632	dml 27 (2022-01-19)
17	Veselov A.N. (almw)³⁹¹	3/10(0)	3	1292	dml 27 (2022-01-20)
18	bitsadze K.R. (furie)²³⁹	3/10(0)	3	5601	dml 48 (2022-01-23)
19	Vinogradova S.M. (Tigra1)¹⁹⁴	2/10(0)	2	4318	dml 25 (2022-01-22)
20	Bezhaev A.Yu. (Baser)⁷	1/10(1)	1		sel 236 (2021-07-24)
21	Rylov A.V. (LexaR2D2)⁴³⁰	1/10(0)	1	7	dml 21 (2022-01-10)
22	Mirsanov D. (Morningside)⁵³²	1/10(0)	1	13	dml 21 (2022-01-14)
23	Boyarskij V.A. (ChronoMorzh)³⁷⁶	1/10(0)	1	16	dml 21 (2022-01-01)
24	Fedevych V.I. (labuch_fedev)³³	1/10(0)	1	21	dml 21 (2022-01-21)
25	Frantsuzova Zh. (Parizhanka)⁴⁷⁶	1/10(0)	1	38	dml 21 (2022-01-02)
26	Savin A.Yu. (mirovingin)²⁴⁵	1/10(0)	1	40	dml 21 (2022-01-11)
27	Karasyova N.V. (vlksm)⁹	1/10(0)	1	120	sel 236 (2021-07-29)
28	Kostyushko Yu.V. (kostushko)³³⁰	1/10(0)	1	162	dml 21 (2022-01-10)
29	V (Tenyva)²²⁹	1/10(0)	1	7176	dml 21 (2022-01-09)

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