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SQL exercises

February 19, 20:05 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: 15429

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	41	59	157	2024-09-04 13:29:47	2026-02-19 14:50:22	767601
2	Komarov A.N. (Shveda Saulya)	41	59	150	2023-11-22 17:11:28	2026-02-13 01:49:19	1171238
3	Sarkis'yan G. (gennadi_s)	16	149	194	2026-02-10 15:42:58		13223
4	Sarkis'yan G. (gennadi_s)	16	149	193	2026-02-02 14:48:13	2026-02-06 14:23:09	5735
5	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		34709
6	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		110549
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		322253
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		443973
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		526128
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		556376
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		568564
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		716417
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		717725
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		740476
15	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		850014
16	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		962079
17	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		962079
18	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		991235
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1017756
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1031388
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1097430
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1100744
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1103134
24	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1135799
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1188061
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1212638
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1495225
28	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1529215
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1633204
30	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1729369
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1768577
32	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1885487
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2032068
34	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2283825
35	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2412177
36	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2546531
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2588717
38	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2592465
39	Kozharinov A. (bubala)	209	0	10	2020-09-30 09:55:07		2834531
40	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2901894
41	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2976224
42	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3041178
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3049148
44	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3088663
45	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3112390
46	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3422779
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3450061
48	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3458124
49	Kordyum A. (alko58)	227	0	12	2019-07-12 15:58:52		3476407
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3520485
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3660460
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3758728
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3761909
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3904100
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3964647
56	Voevutskij S.A. (SergLK)	215	0	45	2018-07-01 13:19:14		4018006
57	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4065471
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4157538
59	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4161447
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4161526
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4184155
62	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4198312
63	F (uff)	65	25	95	2018-01-22 15:57:03		4248249
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4299917
65	Kordyum A. (alko58)	227	0	101	2017-11-21 18:18:43		4337387
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4339148
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4340216
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4377931
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4405048
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4438111
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4514756
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4561301
73	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4565450
74	F (uff)	65	25	185	2017-06-01 10:27:49		4586978
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4626851
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4688742
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4923645
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4959118
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5038342
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5168677
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5210776
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5380197
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5411884
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5445883
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5455245
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5481091
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5495395
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5497081
89	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5508690
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5512261
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5515592
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5559278
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5560545
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5569107
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5578837
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5587464
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5817902
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5819529
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5867689
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5895849

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