SQL exercises

July 05, 11:46 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, 28DML, 29DML, 43DML, 48DML, 51DML, 53DML, 237, 238)

No	person	exs	score	minutes	last_ex
1	Chernov D.V. (Kursist)¹	9/10(0)	16	47	sel 238 (2022-06-11)
2	Filipas I.M. (Axocopan)¹³²	8/10(0)	14	52	dml 53 (2022-02-08)
3	Il'in A.N. (ani42)¹³⁰	8/10(0)	14	92	dml 53 (2022-01-29)
4	Suprun D. (TimonSP)⁷³	8/10(0)	14	195	dml 43 (2022-04-05)
5	Varenikov D.M. (Dmitriy Varenikov)¹⁸	8/10(0)	14	291	dml 53 (2022-02-06)
6	Koptel'tsev V. (selber)³⁰	8/10(5)	14	395	dml 53 (2022-01-28)
7	Doschenko V.N. (mcrain)²	8/10(0)	14	479	dml 53 (2022-04-25)
8	Gmar' D.V. (dimervvsu)⁴²	8/10(0)	14	749	dml 53 (2022-04-19)
9	Filippkin D.V. (_dimon_)¹¹	8/10(0)	14	878	dml 53 (2022-04-24)
10	Komarov A.N. (Shveda Saulya)⁶⁸	8/10(0)	14	1547	dml 53 (2022-03-13)
11	Petrov Y. (YuriPetrov)³⁴	8/10(0)	14	1760	dml 53 (2022-02-08)
12	gls (gls52)¹⁵⁴	8/10(0)	14	2315	dml 53 (2022-02-05)
13	Shkarednyj I.N. (Gosha)³⁵	8/10(0)	14	4848	dml 53 (2022-02-06)
14	Latyntsev N.G. (aks_nsk)⁵¹	7/10(0)	12	1674	dml 53 (2022-02-12)
15	Tsuranov E.V. (Tsuranov Eduard)³⁶⁸	7/10(0)	12	1975	dml 53 (2022-05-19)
16	Kreslavskij O.M. (Arcan)⁴	7/10(0)	11	68	dml 28 (2022-01-20)
17	Karasyova N.V. (vlksm)⁹	7/10(0)	11	533	dml 51 (2022-04-09)
18	Kurochkin P.A. (qwrqwr)¹⁰	7/10(0)	11	3135	dml 28 (2022-01-20)
19	Pavlov A.V. (Anton)⁵⁷	6/10(0)	9	33	dml 51 (2022-04-05)
20	Lazareva E. (lea_22)²⁸²	6/10(0)	9	3139	dml 28 (2022-01-19)
21	Rybkina T.V. (Rybka)⁹³	5/10(0)	6	68	dml 29 (2022-02-05)
22	Fedevych V.I. (labuch_fedev)³³	5/10(0)	6	120	dml 48 (2022-01-30)
23	Mikhailov S. (curiouser)³¹⁰	5/10(0)	6	2824	dml 29 (2022-03-05)
24	bitsadze K.R. (furie)²³⁸	5/10(0)	6	7319	dml 29 (2022-01-26)
25	Sigankov V.I. (vasilyvanc)³¹	4/10(0)	6	1975	dml 43 (2022-04-10)
26	Borzov V.V. (simulacrum)¹⁶⁷	4/10(0)	5	14	dml 29 (2022-06-28)
27	Kostaschuk R.M. (RaduKostashchuk)⁶¹⁹	4/10(0)	5	72	dml 29 (2022-03-08)
28	Ashling (Ashling)⁴⁵⁶	4/10(0)	5	74	dml 29 (2022-04-13)
29	Lobashev A.G. (anewnick)⁵⁵⁸	4/10(0)	5	169	dml 29 (2022-02-11)
30	Sul'dina M.V. (mar91s)⁶¹⁰	4/10(0)	5	201	dml 29 (2022-02-28)
31	Gaas (_vlvl_)⁵⁸⁹	4/10(0)	5	227	dml 29 (2022-04-19)
32	Vestnikov D.A. (letsstudybegin)²⁴⁷	4/10(0)	5	243	dml 29 (2022-03-20)
33	Sopulyak S.V. (takoysebeproger)⁵⁷²	4/10(0)	5	360	dml 29 (2022-01-25)
34	Kadomtsev S.I. (z00mz00m1993)⁶¹⁵	4/10(0)	5	363	dml 29 (2022-03-21)
35	Shishkin D. (Shinuz)¹⁸⁷	4/10(0)	5	403	dml 29 (2022-05-10)
36	Chunev N.A. (nik4un)⁴³⁰	4/10(0)	5	521	dml 29 (2022-03-28)
37	Gatenadze V.Sh. (gaten1952)⁴⁹⁰	4/10(0)	5	727	dml 29 (2022-02-19)
38	Isaev V.Yu. (Valer4N1)⁴⁷⁶	4/10(0)	5	791	dml 29 (2022-01-23)
39	Aseph J. (rukia_)³⁷²	4/10(0)	5	1788	dml 29 (2022-06-13)
40	Pegov S. (sergo_sql)⁶¹⁷	4/10(0)	5	2894	dml 29 (2022-04-18)
41	Kostyushko Yu.V. (kostushko)³¹⁴	4/10(0)	5	2902	dml 29 (2022-02-04)
42	Akol'zin M.S. (maksimok2991)¹⁹³	4/10(0)	5	3145	dml 29 (2022-03-29)
43	Vinogradova S.M. (Tigra1)¹⁸⁶	4/10(0)	5	3275	dml 29 (2022-05-25)
44	Komov K.N. (zigmund1)¹⁵⁹	4/10(0)	5	3800	dml 29 (2022-02-18)
45	Yartsev Yu. (Yury66)¹⁶⁶	4/10(0)	5	3883	dml 29 (2022-03-17)
46	ol O. (svinokiller)³⁷⁹	4/10(0)	5	5820	dml 29 (2022-03-08)
47	Efimova V. (captainX)⁴⁵⁴	4/10(0)	5	13980	dml 29 (2022-03-11)
48	Savin A.Yu. (mirovingin)²¹⁶	4/10(0)	5	15122	dml 29 (2022-03-11)
49	Bezhaev A.Yu. (Baser)⁶	2/10(2)	5		sel 237 (2022-05-13)
50	Chebykin D.N. (GriGrim)³⁷	3/10(0)	4	21	dml 28 (2022-05-14)
51	Kuydinov D. (sh4rk717)⁵⁶⁵	3/10(0)	4	517	dml 28 (2022-06-28)
52	Novozhilov A. (BertokMo)⁵⁴⁶	3/10(0)	4	2141	dml 28 (2022-02-15)
53	Rodionov S. (oldos)³⁰⁴	3/10(0)	4	3815	dml 28 (2022-05-29)
54	Kuritsyn V.N. (ValNick)³⁴⁵	3/10(0)	4	6262	dml 28 (2022-06-18)
55	Veselov A.N. (almw)³⁹⁵	3/10(0)	3	738	dml 48 (2022-01-26)
56	Tarshin S.N. (tsn)¹⁴¹	2/10(0)	2	17	dml 25 (2022-01-24)
57	Murtazaliev M.G. (Magmur)⁵⁹⁴	2/10(0)	2	4608	dml 25 (2022-04-23)
58	Rylov A.V. (LexaR2D2)⁴³³	2/10(0)	2	6253	dml 25 (2022-01-27)
59	Mirsanov D. (Morningside)⁵⁴³	1/10(0)	1	13	dml 21 (2022-01-14)
60	SmirnOFF (select0r)⁷²⁶	1/10(0)	1	16	dml 21 (2022-05-10)
61	Boyarskij V.A. (ChronoMorzh)³⁸⁷	1/10(0)	1	16	dml 21 (2022-01-01)
62	Firstova A.O. (FAO)⁷³⁰	1/10(0)	1	31	dml 21 (2022-07-02)
63	Frantsuzova Zh. (Parizhanka)⁴⁸⁷	1/10(0)	1	38	dml 21 (2022-01-02)
64	V (Tenyva)²³³	1/10(0)	1	7176	dml 21 (2022-01-09)

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