SQL exercises

August 21, 14:29 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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SQL exercises

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Top 100 of the second stage at the
time of solving the exercise #5

No	Person	SolvedEx	LastEx	Minutes	Bad time
1	Myachin I.M. (getred)	2	5	2	45996
2	Pup P.P. (pupa_pupa)	2	5	2	749
3	Guschina E. (kate_gushchina)	2	5	6	8373
4	Govorov E. (erxaan)	2	5	8	11
5	Gonohov M.S. (Mixus)	2	5	9	1587
6	Lagunov M.T. (Opengate48)	2	5	9	9307
7	Nn J. (DAKUCAPORYK)	2	5	10	112
8	Krasnov A.A. (Nutr1k)	2	5	10	51
9	Vol'khin S.A. (Sergei Volkhin)	2	5	11	406
10	Bykov (EvgenyAstro)	2	5	13	38
11	Lysenko O. (Oleg15062025)	2	5	14	354
12	Zolotyh (Guy)	2	5	15	18
13	Koptel'tsev V. (selber)	2	5	15	28
14	Boyarskij V.A. (ChronoMorzh)	2	5	16	66
15	Kajkova I.V. (ira_kay)	2	5	16	1404
16	Smirnov S. (hr)	2	5	17	25
17	gls (gls52)	2	5	17	70
18	Krasovskij E.A. (pegoopik)	2	5	18	78
19	Suprun D. (TimonSP)	2	5	19	31
20	Tsarapkin D.I. (Tsarapkin)	2	5	19	44
21	Tsarin (ilya tsarin)	2	5	19	39
22	Markov A. (Sasha Markov)	2	5	21	631
23	Kreslavskij O.M. (Arcan)	2	5	22	50
24	Dubinskij A.V. (_velial)	2	5	22	34
25	Karpov I. (Dompaff)	2	5	22	73
26	- (wublubbadubdub)	2	5	23	4697
27	Sgk (Kssh)	2	5	23	29
28	Shkarednyj I.N. (Gosha)	2	5	24	485
29	Vyazovetskov A.S. (alex_v)	2	5	25	69
30	Mityurin V. (mitvol)	2	5	25	40
31	Lyaskovskij V.L. (blr_Oliver)	2	5	25	33
32	Badakh'yan S. (wamp.j)	2	5	25	60
33	Filippkin D.V. (_dimon_)	2	5	26	33
34	Zhitchenko A.I. (ArrenHawk)	2	5	26	50
35	Ushakov A.K. (andrew_ushakov)	2	5	26	83
36	Gusev A.O. (NowOrNever)	2	5	26	49
37	Bezhaev A.Yu. (Baser)	2	5	27	170
38	Pak A. (alexey321)	2	5	27	56
39	Gavrilov G.A. (potasovka)	2	5	28	195
40	Chesnokov S.A. (SergeiCh90)	2	5	28	88
41	Tarshin S.N. (tsn)	2	5	29	92
42	Dorodnykh N.A. (nata_doro)	2	5	29	104
43	Kurochkin P.A. (qwrqwr)	2	5	30	52
44	Strazov I.P. (Ivan Strazov)	2	5	30	28900
45	Evsa I.E. (Igor E)	2	5	30	30
46	Vukolov A. (al.vuk)	2	5	30	57
47	Zhdamorev (zda)	2	5	32	64
48	Petrov Y. (YuriPetrov)	2	5	33	34
49	Zakharov N.A. (Tchexp)	2	5	33	143
50	fioletovaya (fioletovaya2)	2	5	33	323
51	Timonin D.E. (DmiTim)	2	5	34	431
52	Gapanovich P.A. (drestar1)	2	5	34	56
53	Frolov K.A. (Murderface_)	2	5	34	7311
54	Chuvstvin M. (chuvstvinmaxim)	2	5	34	171
55	Belskiy V. (Gambit87)	2	5	34	1406
56	Vasev A.V. (Vasev_Aleksey)	2	5	35	89
57	Nikol'skij I.Yu. (igoryun)	2	5	35	114
58	Varenikov D.M. (Dmitriy Varenikov)	2	5	36	96
59	Lyubomudrov R.G. (born2tilt)	2	5	37	38
60	Karasyova N.V. (vlksm)	2	5	38	162
61	Makarov I.A. (_Bkmz_)	2	5	38	42
62	Timofeeva E.V. (Umrikhina)	2	5	38	74
63	Polyakov V.M. (rock_4)	2	5	38	30307
64	Gapsatarov R.R. (gaspik336)	2	5	39	4849
65	Il'in A.N. (ani42)	2	5	41	82
66	Naumov A.D. (wad881988)	2	5	41	116
67	Rudikov E. (cubie)	2	5	41	46
68	Rudnev V.V. (pazartesi)	2	5	41	4189
69	Mordvintseva A.E. (ashigray)	2	5	43	871
70	Moskvin P. (Respect)	2	5	44	104
71	Fulman N.M. (Nir_)	2	5	44	612
72	Metalnikov (kirillmet)	2	5	44	146947
73	Latyntsev N.G. (aks_nsk)	2	5	45	949
74	Sajfullina E.F. (elena-fairy)	2	5	45	2944
75	Strel'chenko A.V. (saphirion)	2	5	45	277
76	Dudochkin A. (dandr)	2	5	46	62
77	Pupkin (Kikimora)	2	5	47	1188
78	Fedevych V.I. (labuch_fedev)	2	5	47	52
79	Box (Box)	2	5	48	143
80	Kulemzin N.E. (Bulochka_c_izumom)	2	5	49	352
81	Ikramov R. (ARNET)	2	5	49	97
82	Tkachenko D. (_GUERNIKA_)	2	5	49	2606
83	Levina A.V. (Anastasiya_mr)	2	5	50	59
84	Kislitsyn P. (kisslitsyn)	2	5	52	431
85	Golinskij M.O. (motcan2)	2	5	52	960
86	Safronov P.A. (Paulus73)	2	5	53	55
87	Vestnikov D.A. (letsstudybegin)	2	5	54	2892
88	Savin A.Yu. (mirovingin)	2	5	55	66
89	Kocherov E.S. (ssense)	2	5	56	198
90	Vinogradova S.M. (Tigra1)	2	5	57	74
91	Kadomtsev S.I. (z00mz00m1993)	2	5	58	329
92	Komarov A.N. (Shveda Saulya)	2	5	59	233
93	Rodionov S. (oldos)	2	5	59	75
94	Ryabov V.E. (vlal)	2	5	59	471
95	Maksimov I. (igor pupa)	2	5	60	4495
96	Nikitin A.A. (Quaero)	2	5	61	11440
97	Fomichev A.V. (Fomichev)	2	5	62	15913
98	Chebykin D. (GriGrim)	2	5	63	347
99	Voronkov O.A. (elafonisy)	2	5	64	113
100	Shibaev (saah)	2	5	65	84

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Top 100 of the second stage at the time of solving the exercise #5

Top 100 of the second stage at the
time of solving the exercise #5