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SQL exercises

May 13, 11:47 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: 15087

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	218	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
2	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		5663
3	Vyazovetskov A.S. (alex_v)	11	218	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
4	Vyazovetskov A.S. (alex_v)	11	218	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
5	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
6	Vyazovetskov A.S. (alex_v)	11	218	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
7	Vyazovetskov A.S. (alex_v)	11	218	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
8	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
9	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
10	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
11	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		18722
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		28950
13	Vyazovetskov A.S. (alex_v)	11	218	264	2026-04-22 19:15:17		29792
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		60504
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		153731
16	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		229571
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		441274
18	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		562994
19	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		645149
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		675397
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		687586
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		835438
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		836746
24	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		859497
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		969036
26	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1081100
27	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1081101
28	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1110257
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1136777
30	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1150409
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1216452
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1219765
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1222155
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1254820
35	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1307082
36	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1331659
37	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1648237
38	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1752225
39	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1848390
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1887599
41	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2004508
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2151089
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2402846
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2531198
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2665552
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2707738
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2711486
48	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2953552
49	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3020915
50	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3095245
51	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3160199
52	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3168170
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3207684
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3231412
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3541801
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3569083
57	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3577145
58	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3595428
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3639507
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3779482
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3877750
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3880931
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4023122
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4083669
65	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4137028
66	Zyrin V.E. (Vezyr)	548	0	29	2018-05-29 14:14:19		4184493
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4276559
68	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4280469
69	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4280547
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4303177
71	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4317334
72	F (uff)	65	25	95	2018-01-22 15:57:03		4367270
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4418938
74	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4456408
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4458170
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4459238
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4496953
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4524070
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4557133
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4633777
81	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4680322
82	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4684471
83	F (uff)	65	25	185	2017-06-01 10:27:49		4705999
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4745872
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4807763
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5042667
87	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5078140
88	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5157363
89	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5287698
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5329798
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5499218
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5530906
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5564905
94	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5574266
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5600112
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5614416
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5616102
98	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5627711
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5631283
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5634614

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