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SQL exercises

October 25, 00:31 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: 13903

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	13	192	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
2	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		7529
3	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
4	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
5	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		20610
6	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		35497
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		68660
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		82729
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		93238
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		123057
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		125950
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		134658
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		137426
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		187552
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		221981
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		255646
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		265874
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		266716
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		297428
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		390655
21	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		466495
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		678198
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		912321
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		924510
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1072362
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1073671
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1096421
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1205960
29	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1318025
30	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1318025
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1347181
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1373701
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1387333
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1453376
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1456689
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1459079
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1491744
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1544007
39	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1568583
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1885161
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1989149
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2085314
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2124523
44	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2241432
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2388013
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2639770
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2768122
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2902476
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2944663
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2948410
51	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3190476
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3257839
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3332169
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3397123
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3405094
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3444608
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3468336
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3778725
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3806007
60	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3814069
61	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3832352
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3876431
63	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4016406
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4114674
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4117855
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4260046
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4320593
68	Voevutskij S.A. (SergLK)	221	0	45	2018-07-01 13:19:14		4373952
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4421417
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4513483
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4517393
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4517471
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4540101
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4554258
75	F (uff)	66	23	95	2018-01-22 15:57:03		4604194
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4655862
77	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4693332
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4695094
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4696162
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4733877
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4760994
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4794057
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4870702
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4917246
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4921395
86	F (uff)	66	23	185	2017-06-01 10:27:49		4942923
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4982796
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5044687
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5279591
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5315064
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5394287
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5524622
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5566722
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5736142
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5767830
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5801829
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5811190
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5837036
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5851340
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5853026

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