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SQL exercises

April 05, 22:07 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: 15056

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Chernov D.V. (Kursist)	2	262	24	2026-04-05 21:27:47		39
2	Koptel'tsev V. (selber)	20	122	24	2026-04-05 18:00:17	2026-04-05 18:20:48	21
3	Kurochkin P.A. (qwrqwr)	11	211	24	2026-04-05 13:51:41	2026-04-05 14:52:27	61
4	Sarkis'yan G. (gennadi_s)	15	156	196	2026-04-04 14:52:32		1875
5	Sarkis'yan G. (gennadi_s)	15	156	24	2026-04-04 13:32:52	2026-04-04 13:45:41	13
6	Krasovskij E.A. (pegoopik)	1	262	24	2026-04-03 23:24:48	2026-04-03 23:24:51	0
7	Polyakov V.M. (rock_4)	116	6	148	2026-04-01 11:23:28		6404
8	Polyakov V.M. (rock_4)	116	6	140	2026-03-31 09:33:07	2026-04-01 10:33:47	1501
9	Polyakov V.M. (rock_4)	116	6	256	2026-03-25 09:59:37	2026-03-30 17:47:18	7668
10	Sarkis'yan G. (gennadi_s)	15	156	195	2026-03-23 13:36:04	2026-03-29 14:18:04	8682
11	Polyakov V.M. (rock_4)	116	6	142	2026-03-26 09:29:52	2026-03-27 15:24:51	1795
12	Polyakov V.M. (rock_4)	116	6	139	2026-03-24 13:03:07	2026-03-25 16:32:20	1649
13	Polyakov V.M. (rock_4)	116	6	254	2026-03-25 09:58:47		16568
14	Polyakov V.M. (rock_4)	116	6	138	2026-02-20 17:03:21	2026-03-24 11:15:38	45732
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		99631
16	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		175471
17	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		387174
18	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		508894
19	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		591049
20	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		621297
21	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		633486
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		781338
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		782646
24	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		805397
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		914936
26	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		1027000
27	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		1027001
28	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1056157
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1082677
30	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1096309
31	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1162352
32	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1165665
33	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1168055
34	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1200720
35	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1252982
36	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1277559
37	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1594137
38	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1698125
39	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1794290
40	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1833499
41	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1950408
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2096989
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2348746
44	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2477098
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2611452
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2653638
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2657386
48	Kozharinov A. (bubala)	211	0	10	2020-09-30 09:55:07		2899452
49	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2966815
50	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3041145
51	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3106099
52	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3114070
53	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3153584
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3177312
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3487701
56	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3514983
57	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3523045
58	Kordyum A. (alko58)	229	0	12	2019-07-12 15:58:52		3541328
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3585407
60	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3725382
61	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3823650
62	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3826831
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3969022
64	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		4029569
65	Voevutskij S.A. (SergLK)	217	0	45	2018-07-01 13:19:14		4082928
66	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4130393
67	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4222459
68	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4226369
69	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4226447
70	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4249077
71	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4263234
72	F (uff)	65	25	95	2018-01-22 15:57:03		4313170
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4364838
74	Kordyum A. (alko58)	229	0	101	2017-11-21 18:18:43		4402308
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4404070
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4405138
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4442853
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4469970
79	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4503032
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4579677
81	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4626222
82	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4630371
83	F (uff)	65	25	185	2017-06-01 10:27:49		4651899
84	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4691772
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4753663
86	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4988567
87	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5024040
88	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5103263
89	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5233598
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5275698
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5445118
92	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5476806
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5510805
94	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5520166
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5546012
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5560316
97	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5562002
98	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5573611
99	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5577183
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5580514

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