SQL exercises

May 22, 21:48 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	Govorov E. (erxaan)	2	5	8	11
3	Gonohov M.S. (Mixus)	2	5	9	1587
4	Lagunov M.T. (Opengate48)	2	5	9	9307
5	Nn J. (DAKUCAPORYK)	2	5	10	112
6	Krasnov A.A. (Nutr1k)	2	5	10	51
7	Vol'khin S.A. (Sergei Volkhin)	2	5	11	406
8	Lysenko O. (Oleg15062025)	2	5	14	354
9	Zolotyh (Guy)	2	5	15	18
10	Koptel'tsev V. (selber)	2	5	15	28
11	Boyarskij V.A. (ChronoMorzh)	2	5	16	66
12	Kajkova I.V. (ira_kay)	2	5	16	1404
13	gls (gls52)	2	5	17	70
14	Krasovskij E.A. (pegoopik)	2	5	18	78
15	Suprun D. (TimonSP)	2	5	19	31
16	Tsarapkin D.I. (Tsarapkin)	2	5	19	44
17	Tsarin (ilya tsarin)	2	5	19	39
18	Markov A. (Sasha Markov)	2	5	21	631
19	Kreslavskij O.M. (Arcan)	2	5	22	50
20	Dubinskij A.V. (_velial)	2	5	22	34
21	Karpov I. (Dompaff)	2	5	22	73
22	- (wublubbadubdub)	2	5	23	4697
23	Sgk (Kssh)	2	5	23	29
24	Shkarednyj I.N. (Gosha)	2	5	24	485
25	Vyazovetskov A.S. (alex_v)	2	5	25	69
26	Mityurin V. (mitvol)	2	5	25	40
27	Lyaskovskij V.L. (blr_Oliver)	2	5	25	33
28	Badakh'yan S. (wamp.j)	2	5	25	60
29	Filippkin D.V. (_dimon_)	2	5	26	33
30	Zhitchenko A.I. (ArrenHawk)	2	5	26	50
31	Ushakov A.K. (andrew_ushakov)	2	5	26	83
32	Gusev A.O. (NowOrNever)	2	5	26	49
33	Bezhaev A.Yu. (Baser)	2	5	27	170
34	Pak A. (alexey321)	2	5	27	56
35	Gavrilov G.A. (potasovka)	2	5	28	195
36	Chesnokov S.A. (SergeiCh90)	2	5	28	88
37	Tarshin S.N. (tsn)	2	5	29	92
38	Dorodnykh N.A. (nata_doro)	2	5	29	104
39	Kurochkin P.A. (qwrqwr)	2	5	30	52
40	Strazov I.P. (Ivan Strazov)	2	5	30	28900
41	Evsa I.E. (Igor E)	2	5	30	30
42	Vukolov A. (al.vuk)	2	5	30	57
43	Zhdamorev (zda)	2	5	32	64
44	Petrov Y. (YuriPetrov)	2	5	33	34
45	Zakharov N.A. (Tchexp)	2	5	33	143
46	fioletovaya (fioletovaya2)	2	5	33	323
47	Timonin D.E. (DmiTim)	2	5	34	431
48	Gapanovich P.A. (drestar1)	2	5	34	56
49	Frolov K.A. (Murderface_)	2	5	34	7311
50	Chuvstvin M. (chuvstvinmaxim)	2	5	34	171
51	Belskiy V. (Gambit87)	2	5	34	1406
52	Vasev A.V. (Vasev_Aleksey)	2	5	35	89
53	Nikol'skij I.Yu. (igoryun)	2	5	35	114
54	Varenikov D.M. (Dmitriy Varenikov)	2	5	36	96
55	Lyubomudrov R.G. (born2tilt)	2	5	37	38
56	Karasyova N.V. (vlksm)	2	5	38	162
57	Makarov I.A. (_Bkmz_)	2	5	38	42
58	Timofeeva E.V. (Umrikhina)	2	5	38	74
59	Polyakov V.M. (rock_4)	2	5	38	30307
60	Gapsatarov R.R. (gaspik336)	2	5	39	4849
61	Il'in A.N. (ani42)	2	5	41	82
62	Naumov A.D. (wad881988)	2	5	41	116
63	Rudikov E. (cubie)	2	5	41	46
64	Rudnev V.V. (pazartesi)	2	5	41	4189
65	Mordvintseva A.E. (ashigray)	2	5	43	871
66	Moskvin P. (Respect)	2	5	44	104
67	Fulman N.M. (Nir_)	2	5	44	612
68	Metalnikov (kirillmet)	2	5	44	146947
69	Latyntsev N.G. (aks_nsk)	2	5	45	949
70	Sajfullina E.F. (elena-fairy)	2	5	45	2944
71	Strel'chenko A.V. (saphirion)	2	5	45	277
72	Dudochkin A. (dandr)	2	5	46	62
73	Pupkin (Kikimora)	2	5	47	1188
74	Fedevych V.I. (labuch_fedev)	2	5	47	52
75	Box (Box)	2	5	48	143
76	Kulemzin N.E. (Bulochka_c_izumom)	2	5	49	352
77	Ikramov R. (ARNET)	2	5	49	97
78	Tkachenko D. (_GUERNIKA_)	2	5	49	2606
79	Levina A.V. (Anastasiya_mr)	2	5	50	59
80	Kislitsyn P. (kisslitsyn)	2	5	52	431
81	Golinskij M.O. (motcan2)	2	5	52	960
82	Safronov P.A. (Paulus73)	2	5	53	55
83	Vestnikov D.A. (letsstudybegin)	2	5	54	2892
84	Savin A.Yu. (mirovingin)	2	5	55	66
85	Kocherov E.S. (ssense)	2	5	56	198
86	Vinogradova S.M. (Tigra1)	2	5	57	74
87	Kadomtsev S.I. (z00mz00m1993)	2	5	58	329
88	Komarov A.N. (Shveda Saulya)	2	5	59	233
89	Rodionov S. (oldos)	2	5	59	75
90	Ryabov V.E. (vlal)	2	5	59	471
91	Maksimov I. (igor pupa)	2	5	60	4495
92	Nikitin A.A. (Quaero)	2	5	61	11440
93	Fomichev A.V. (Fomichev)	2	5	62	15913
94	Chebykin D. (GriGrim)	2	5	63	347
95	Voronkov O.A. (elafonisy)	2	5	64	113
96	Yakushev E.A. (Ejhi)	2	5	66	78
97	Abdulmanapov A. (Dvarik)	2	5	68	1409
98	Nesov V.A. (80STH)	2	5	68	1514
99	Kostyushko Yu.V. (kostushko)	2	5	69	138
100	Kad V.Y. (s108)	2	5	71	336

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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