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SQL exercises

May 08, 08:49 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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Recent leaders activity

Rating - rating position;
3rd score - number of points earned on the third stage;
Ex - exercise's number;
Start - time when the exercise was started;
Finish - time when the exercise was solved;
S_time (min) - time in minutes spent for solving the exercise

Involved in rating: 15102

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	214	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
2	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
3	Vyazovetskov A.S. (alex_v)	11	214	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
4	Vyazovetskov A.S. (alex_v)	11	214	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
5	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
6	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
7	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
8	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		11345
9	Sarkis'yan G. (gennadi_s)	15	170	200	2026-04-27 16:55:45	2026-04-29 19:00:00	3004
10	Polyakov V.M. (rock_4)	76	15	152	2026-04-16 13:35:42	2026-04-29 17:07:29	18932
11	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		21573
12	Vyazovetskov A.S. (alex_v)	11	214	264	2026-04-22 19:15:17		22415
13	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		53127
14	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		146354
15	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		222194
16	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		433897
17	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		555617
18	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		637772
19	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		668020
20	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		680209
21	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		828061
22	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		829369
23	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		852120
24	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		961659
25	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1073723
26	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1073724
27	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1102880
28	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1129400
29	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1143032
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1209074
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1212388
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1214778
33	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1247443
34	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1299705
35	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1324282
36	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1640860
37	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1744848
38	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1841013
39	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1880222
40	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		1997131
41	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2143712
42	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2395469
43	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2523821
44	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2658175
45	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2700361
46	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2704109
47	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2946175
48	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3013538
49	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3087868
50	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3152822
51	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3160793
52	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3200307
53	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3224034
54	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3534424
55	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3561706
56	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3569768
57	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3588051
58	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3632130
59	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3772105
60	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3870373
61	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3873554
62	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4015745
63	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4076292
64	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4129651
65	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4177116
66	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4269182
67	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4273091
68	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4273170
69	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4295800
70	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4309956
71	F (uff)	65	25	95	2018-01-22 15:57:03		4359893
72	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4411561
73	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4449031
74	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4450792
75	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4451861
76	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4489576
77	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4516693
78	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4549755
79	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4626400
80	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4672945
81	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4677094
82	F (uff)	65	25	185	2017-06-01 10:27:49		4698622
83	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4738495
84	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4800386
85	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5035290
86	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5070763
87	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5149986
88	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5280321
89	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5322420
90	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5491841
91	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5523529
92	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5557528
93	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5566889
94	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5592735
95	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5607039
96	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5608725
97	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5620334
98	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5623905
99	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5627237
100	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5670922

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