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SQL exercises

September 23, 10:02 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: 13856

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11		4588
2	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
3	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
4	Krasovskij E.A. (pegoopik)	1	266	303	2026-09-11 20:13:12	2026-09-11 20:13:42	1
5	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20	2026-09-11 10:52:12	7003
6	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
7	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		23152
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		37221
9	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		47730
10	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		77549
11	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		80441
12	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		89150
13	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		91918
14	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		142044
15	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		176473
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		210138
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		220366
18	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		221208
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		251919
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		345147
21	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		420986
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		632690
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		866813
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		879001
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1026854
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1028162
27	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1050913
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1160451
29	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1272516
30	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1272516
31	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1301672
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1328193
33	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1341825
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1407867
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1411181
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1413571
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1446236
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1498498
39	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1523075
40	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1839652
41	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1943641
42	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2039806
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2079014
44	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2195924
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2342505
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2594262
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2722614
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2856968
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2899154
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2902902
51	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3144968
52	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3212331
53	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3286661
54	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3351615
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3359585
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3399100
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3422827
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3733217
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3760499
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3768561
61	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3786844
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3830922
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3970898
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4069165
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4072346
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4214537
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4275084
68	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4328444
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4375909
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4467975
71	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4471884
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4471963
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4494592
74	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4508749
75	F (uff)	65	25	95	2018-01-22 15:57:03		4558686
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4610354
77	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4647824
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4649585
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4650654
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4688368
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4715485
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4748548
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4825193
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4871738
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4875887
86	F (uff)	65	25	185	2017-06-01 10:27:49		4897415
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4937288
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4999179
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5234083
90	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5269555
91	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5348779
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5479114
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5521213
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5690634
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5722321
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5756320
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5765682
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5791528
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5805832
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5807518

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