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SQL exercises

October 10, 14:50 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: 15188

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		131857
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		253578
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		327634
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		335732
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		365980
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		378169
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		526022
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		527330
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		550080
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		577520
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		659619
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		771684
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		771684
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		800840
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		827361
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		840992
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		907035
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		910349
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		912738
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		945403
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		990579
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		997666
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1022242
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1267274
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1304830
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1338820
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1442809
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1538973
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1578182
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1695091
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1841673
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1955722
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2093429
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2221781
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2356135
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2398322
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2402069
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2644135
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2711498
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2785828
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2850782
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2858753
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2898267
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2921995
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3232384
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3259666
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3267728
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3286011
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3330090
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3470065
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3568333
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3571514
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3713705
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3774252
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3827611
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3875076
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3967143
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3971052
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3971130
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3993760
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4007917
63	F (uff)	65	25	95	2018-01-22 15:57:03		4057853
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4109522
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4146992
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4148753
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4149821
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4187536
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4214653
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4247716
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4324361
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4370905
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4375054
74	F (uff)	65	25	185	2017-06-01 10:27:49		4396582
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4436455
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4498346
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4733250
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4768723
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4847946
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4978282
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5020381
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5189801
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5221489
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5255488
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5264849
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5290695
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5304999
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5306685
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5318295
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5321866
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5325197
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5368882
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5370149
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5378711
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5388441
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5397068
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5627507
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5629134
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5677294
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5705454

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