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SQL exercises

September 15, 17:06 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: 15169

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
2	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
3	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
4	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		12055
5	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		26124
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		36633
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		66452
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		69345
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		78053
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		80821
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		130947
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		165376
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		199041
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		209269
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		210111
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		240823
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		334050
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		409890
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		621593
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		855716
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		867905
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1015757
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1017066
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1039816
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1149355
26	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1261420
27	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1261420
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1290576
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1317096
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1330728
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1396771
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1400084
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1402474
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1435139
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1487402
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1511978
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1828556
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1932544
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2028709
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2067918
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2184827
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2331408
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2583165
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2711517
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2845871
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2888058
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2891805
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3133871
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3201234
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3275564
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3340518
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3348489
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3388003
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3411731
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3722120
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3749402
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3757464
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3775747
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3819826
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3959801
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4058069
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4061250
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4203441
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4263988
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4317347
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4364812
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4456878
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4460788
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4460866
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4483496
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4497653
72	F (uff)	65	25	95	2018-01-22 15:57:03		4547589
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4599257
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4636727
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4638489
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4639557
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4677272
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4704389
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4737452
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4814097
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4860641
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4864790
83	F (uff)	65	25	185	2017-06-01 10:27:49		4886318
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4926191
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4988082
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5222986
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5258459
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5337682
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5468017
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5510117
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5679537
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5711225
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5745224
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5754585
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5780431
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5794735
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5796421
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5808031
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5811602
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5814933

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