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SQL exercises

June 06, 09:22 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: 15099

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
2	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
3	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
4	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
5	Makarov I.A. (_Bkmz_)	55	33	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
6	Vyazovetskov A.S. (alex_v)	7	241	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
7	Vyazovetskov A.S. (alex_v)	7	241	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
8	Vyazovetskov A.S. (alex_v)	7	241	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
9	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		19472
10	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		19498
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		31437
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		40078
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		53137
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		63365
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		64207
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		94919
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		188146
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		263986
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		475689
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		597410
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		679564
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		709812
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		722001
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		869854
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		871162
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		893912
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1003451
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1115516
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1115516
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1144672
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1171193
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1184824
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1250867
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1254181
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1256570
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1289235
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1341498
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1366074
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1682652
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1786641
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1882805
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1922014
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2038923
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2185505
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2437261
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2565613
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2699967
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2742154
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2745901
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2987967
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3055330
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3129660
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3194614
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3202585
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3242099
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3265827
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3576216
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3603498
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3611560
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3629843
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3673922
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3813897
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3912165
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3915346
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4057537
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4118084
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4171443
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4218908
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4310974
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4314884
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4314962
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4337592
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4351749
74	F (uff)	65	25	95	2018-01-22 15:57:03		4401685
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4453354
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4490823
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4492585
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4493653
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4531368
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4558485
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4591548
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4668193
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4714737
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4718886
85	F (uff)	65	25	185	2017-06-01 10:27:49		4740414
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4780287
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4842178
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5077082
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5112555
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5191778
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5322113
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5364213
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5533633
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5565321
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5599320
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5608681
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5634527
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5648831
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5650517
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5662127

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