SQL exercises

September 26, 16:13 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

(25DML, 28DML, 29DML, 43DML, 48DML, 51DML, 53DML, 54DML, 237, 238)

No	person	exs	score	minutes	last_ex
1	Filippkin D.V. (_dimon_)⁹	10/10(0)	19	2280	sel 237 (2022-09-09)
2	Chernov D.V. (Kursist)¹	9/10(0)	16	58	dml 54 (2022-07-17)
3	Koptel'tsev V. (selber)²⁸	9/10(5)	16	341	sel 238 (2022-07-21)
4	Il'in A.N. (ani42)¹³⁰	8/10(0)	14	94	dml 54 (2022-09-09)
5	Suprun D. (TimonSP)⁷³	8/10(0)	14	196	dml 54 (2022-07-21)
6	Varenikov D.M. (Dmitriy Varenikov)¹⁸	8/10(0)	14	297	dml 54 (2022-07-20)
7	Komarov A.N. (Shveda Saulya)⁶²	8/10(0)	14	1549	dml 54 (2022-07-17)
8	gls (gls52)¹³⁸	8/10(0)	14	2316	dml 54 (2022-07-25)
9	Shkarednyj I.N. (Gosha)³⁵	8/10(0)	14	4849	dml 54 (2022-07-15)
10	Filipas I.M. (Axocopan)¹³²	7/10(0)	13	59	dml 53 (2022-02-08)
11	Doschenko V.N. (mcrain)²	7/10(0)	13	545	dml 53 (2022-04-25)
12	Gmar' D.V. (dimervvsu)⁴¹	7/10(0)	13	668	dml 53 (2022-04-19)
13	Petrov Y. (YuriPetrov)³⁴	7/10(0)	13	2010	dml 53 (2022-02-08)
14	Latyntsev N.G. (aks_nsk)⁵¹	6/10(0)	11	1950	dml 53 (2022-02-12)
15	Tsuranov E.V. (Tsuranov Eduard)³⁷⁰	6/10(0)	11	2288	dml 53 (2022-05-19)
16	Kreslavskij O.M. (Arcan)⁴	6/10(0)	10	78	dml 28 (2022-01-20)
17	Karasyova N.V. (vlksm)¹⁰	6/10(0)	10	620	dml 51 (2022-04-09)
18	Kurochkin P.A. (qwrqwr)¹¹	6/10(0)	10	3657	dml 28 (2022-01-20)
19	Pavlov A.V. (Anton)⁵⁷	5/10(0)	8	38	dml 51 (2022-04-05)
20	Lazareva E. (lea_22)²⁸¹	5/10(0)	8	3763	dml 28 (2022-01-19)
21	Shishkin D. (Shinuz)¹⁶⁰	4/10(0)	6	405	dml 43 (2022-07-25)
22	Rybkina T.V. (Rybka)⁹³	4/10(0)	5	80	dml 29 (2022-02-05)
23	Fedevych V.I. (labuch_fedev)³³	4/10(0)	5	145	dml 48 (2022-01-30)
24	Mikhailov S. (curiouser)³¹¹	4/10(0)	5	3526	dml 29 (2022-03-05)
25	bitsadze K.R. (furie)²³⁹	4/10(0)	5	9145	dml 29 (2022-01-26)
26	Sigankov V.I. (vasilyvanc)³¹	3/10(0)	5	2624	dml 43 (2022-04-10)
27	Bezhaev A.Yu. (Baser)⁶	2/10(2)	5		sel 237 (2022-05-13)
28	Borzov V.V. (simulacrum)¹⁴⁶	3/10(0)	4	17	dml 29 (2022-06-28)
29	Belyakov M.Ya. (Mat_Original)³⁷⁴	3/10(0)	4	83	dml 29 (2022-07-19)
30	Lobashev A.G. (anewnick)⁵⁶⁵	3/10(0)	4	84	dml 29 (2022-02-11)
31	Kostaschuk R.M. (RaduKostashchuk)⁶²⁸	3/10(0)	4	89	dml 29 (2022-03-08)
32	Ashling (Ashling)⁴⁶⁰	3/10(0)	4	93	dml 29 (2022-04-13)
33	Sul'dina M.V. (mar91s)⁶¹⁹	3/10(0)	4	257	dml 29 (2022-02-28)
34	Gaas (_vlvl_)⁵⁹⁶	3/10(0)	4	258	dml 29 (2022-04-19)
35	Vestnikov D.A. (letsstudybegin)²⁴⁸	3/10(0)	4	321	dml 29 (2022-03-20)
36	Bojkov R.V. (Remmix)⁵⁷⁷	3/10(0)	4	454	dml 29 (2022-09-13)
37	Sopulyak S.V. (takoysebeproger)⁵⁷⁹	3/10(0)	4	471	dml 29 (2022-01-25)
38	Kadomtsev S.I. (z00mz00m1993)⁶²⁴	3/10(0)	4	481	dml 29 (2022-03-21)
39	Efimova V. (captainX)⁴⁵⁵	3/10(0)	4	503	dml 29 (2022-03-11)
40	Chunev N.A. (nik4un)⁴³²	3/10(0)	4	664	dml 29 (2022-03-28)
41	Konovalov P.D. (pdkonovalov)⁶¹²	3/10(0)	4	731	dml 29 (2022-07-30)
42	Zakharov S. (sad_shrink)⁴⁸⁷	3/10(0)	4	883	dml 29 (2022-07-16)
43	Gatenadze V.Sh. (gaten1952)⁴⁹⁶	3/10(0)	4	940	dml 29 (2022-02-19)
44	Isaev V.Yu. (Valer4N1)⁴⁸¹	3/10(0)	4	1032	dml 29 (2022-01-23)
45	Kuydinov D. (sh4rk717)⁵⁵²	3/10(0)	4	1069	dml 29 (2022-07-06)
46	Gorshelev M.O. (eximka)³⁴⁴	3/10(0)	4	1202	dml 29 (2022-08-08)
47	Aseph J. (rukia_)³⁷⁵	3/10(0)	4	1428	dml 29 (2022-06-13)
48	Khropunova S.P. (sony24)⁶¹⁴	3/10(0)	4	2893	dml 29 (2022-08-09)
49	Firstova A.O. (FAO)⁴⁵⁸	3/10(0)	4	3007	dml 29 (2022-07-24)
50	Yartsev Yu. (Yury66)¹⁶⁸	3/10(0)	4	3644	dml 29 (2022-03-17)
51	Pegov S. (sergo_sql)⁶²⁶	3/10(0)	4	3697	dml 29 (2022-04-18)
52	Kostyushko Yu.V. (kostushko)³¹⁵	3/10(0)	4	3816	dml 29 (2022-02-04)
53	Akol'zin M.S. (maksimok2991)¹⁹³	3/10(0)	4	4186	dml 29 (2022-03-29)
54	Vinogradova S.M. (Tigra1)¹⁸⁴	3/10(0)	4	4354	dml 29 (2022-05-25)
55	Ustinova (Sforza)⁴⁷⁸	3/10(0)	4	4730	dml 29 (2022-08-07)
56	Komov K.N. (zigmund1)¹⁵⁹	3/10(0)	4	5034	dml 29 (2022-02-18)
57	Cherpak V.E. (OakTree)⁵³³	3/10(0)	4	6816	dml 29 (2022-09-06)
58	ol O. (svinokiller)³⁸¹	3/10(0)	4	7754	dml 29 (2022-03-08)
59	Frolov K.A. (Murderface_)⁴³³	3/10(0)	4	12794	dml 29 (2022-09-13)
60	Savin A.Yu. (mirovingin)²¹⁷	3/10(0)	4	20149	dml 29 (2022-03-11)
61	Kuritsyn V.N. (ValNick)²⁰⁶	3/10(0)	4	44181	dml 29 (2022-09-05)
62	Chebykin D.N. (GriGrim)³⁷	2/10(0)	3	31	dml 28 (2022-05-14)
63	Novozhilov A. (BertokMo)⁵⁵³	2/10(0)	3	3201	dml 28 (2022-02-15)
64	Rodionov S. (oldos)³⁰⁵	2/10(0)	3	5696	dml 28 (2022-05-29)
65	Veselov A.N. (almw)³⁹⁷	2/10(0)	2	1101	dml 48 (2022-01-26)
66	Tarshin S.N. (tsn)¹⁴²	1/10(0)	1	24	dml 25 (2022-01-24)
67	Murtazaliev M.G. (Magmur)⁶⁰¹	1/10(0)	1	41	dml 25 (2022-04-23)
68	Lyaschenko S.N. (pimen78)²⁵⁸	1/10(0)	1	107	dml 25 (2022-09-23)
69	Rylov A.V. (LexaR2D2)⁴³⁶	1/10(0)	1	12499	dml 25 (2022-01-27)

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