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SQL exercises

June 02, 13:55 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: 15105

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	8	235	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
2	Makarov I.A. (_Bkmz_)	55	33	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
3	Vyazovetskov A.S. (alex_v)	8	235	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
4	Vyazovetskov A.S. (alex_v)	8	235	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
5	Vyazovetskov A.S. (alex_v)	8	235	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
6	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57		13894
7	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		13986
8	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		14012
9	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26	2026-05-23 19:54:13	265
10	Makarov I.A. (_Bkmz_)	55	33	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
11	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
12	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
13	Vyazovetskov A.S. (alex_v)	8	235	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
14	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		25950
15	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		34591
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		47651
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		57879
18	Vyazovetskov A.S. (alex_v)	8	235	264	2026-04-22 19:15:17		58720
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		89432
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		182660
21	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		258499
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		470203
23	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		591923
24	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		674078
25	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		704326
26	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		716514
27	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		864367
28	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		865675
29	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		888426
30	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		997964
31	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1110029
32	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1110029
33	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1139185
34	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1165706
35	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1179338
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1245380
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1248694
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1251084
39	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1283749
40	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1336011
41	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1360588
42	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1677165
43	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1781154
44	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1877319
45	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1916527
46	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2033437
47	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2180018
48	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2431775
49	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2560127
50	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2694481
51	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2736667
52	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2740415
53	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2982481
54	Samarin A. (not.yet.sql.master)	145	0	112	2020-08-14 15:12:10		3049844
55	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3124174
56	Samarin A. (not.yet.sql.master)	145	0	138	2020-05-09 21:48:04		3189128
57	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3197098
58	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3236613
59	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3260340
60	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3570730
61	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3598012
62	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3606074
63	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3624357
64	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3668435
65	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3808410
66	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3906678
67	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3909859
68	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4052050
69	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4112597
70	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4165957
71	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4213421
72	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4305488
73	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4309397
74	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4309476
75	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4332105
76	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4346262
77	F (uff)	65	25	95	2018-01-22 15:57:03		4396199
78	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4447867
79	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4485337
80	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4487098
81	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4488166
82	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4525881
83	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4552998
84	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4586061
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4662706
86	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4709251
87	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4713400
88	F (uff)	65	25	185	2017-06-01 10:27:49		4734928
89	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4774801
90	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4836692
91	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5071596
92	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5107068
93	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5186292
94	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5316627
95	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5358726
96	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5528147
97	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5559834
98	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5593833
99	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5603195
100	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5629041

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