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SQL exercises

October 22, 13:15 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: 13917

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		3973
2	Sarkis'yan G. (gennadi_s)	14	188	192	2026-10-17 13:29:17		7186
3	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
4	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
5	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		17054
6	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
7	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		31941
8	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		65104
9	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		79173
10	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		89682
11	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		119501
12	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		122394
13	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		131102
14	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		133870
15	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		183996
16	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		218425
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		252090
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		262318
19	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		263160
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		293872
21	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		387099
22	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		462939
23	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		674642
24	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		908765
25	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		920954
26	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1068807
27	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1070115
28	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1092865
29	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1202404
30	Slavutinskij V.V. (Vasilko)	457	0	5	2024-04-22 17:26:35		1314469
31	Slavutinskij V.V. (Vasilko)	457	0	7	2024-04-22 17:26:21		1314469
32	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1343625
33	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1370146
34	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1383777
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1449820
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1453134
37	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1455523
38	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1488188
39	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1540451
40	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1565027
41	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1881605
42	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1985594
43	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2081758
44	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2120967
45	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2237876
46	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2384458
47	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2636214
48	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2764566
49	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2898920
50	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2941107
51	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2944854
52	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3186920
53	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3254283
54	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3328613
55	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3393567
56	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3401538
57	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3441052
58	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3464780
59	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3775169
60	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3802451
61	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3810513
62	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3828796
63	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3872875
64	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4012850
65	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4111118
66	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4114299
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4256490
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4317037
69	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4370396
70	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4417861
71	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4509928
72	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4513837
73	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4513915
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4536545
75	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4550702
76	F (uff)	66	23	95	2018-01-22 15:57:03		4600638
77	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4652307
78	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4689777
79	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4691538
80	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4692606
81	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4730321
82	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4757438
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4790501
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4867146
85	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4913690
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4917839
87	F (uff)	66	23	185	2017-06-01 10:27:49		4939367
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4979240
89	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5041131
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5276035
91	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5311508
92	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5390731
93	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5521067
94	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5563166
95	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5732586
96	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5764274
97	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5798273
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5807634
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5833480
100	Movlyanov A.P. (Oct)	13	191	194	2015-09-09 14:10:52		5847784

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