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SQL exercises

March 16, 01:04 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: 15394

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	20	122	179	2026-02-21 19:34:16	2026-03-09 22:57:01	23243
2	Polyakov V.M. (rock_4)	133	0	138	2026-02-20 17:03:21		33601
3	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		69568
4	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		145408
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		357112
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		478832
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		560987
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		591235
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		603423
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		751276
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		752584
12	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		775335
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		884873
14	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		996938
15	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		996938
16	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1026094
17	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1052615
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1066247
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1132289
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1135603
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1137993
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1170657
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1222920
24	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1247497
25	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1530084
26	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1564074
27	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1668063
28	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1764228
29	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1803436
30	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1920346
31	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2066927
32	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2318684
33	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2447036
34	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2581389
35	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2623576
36	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2627323
37	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2869389
38	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2936752
39	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3011082
40	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3076037
41	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3084007
42	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3123522
43	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3147249
44	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3457638
45	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3484920
46	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3492982
47	Kordyum A. (alko58)	228	0	12	2019-07-12 15:58:52		3511266
48	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3555344
49	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3695319
50	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3793587
51	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3796768
52	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3938959
53	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3999506
54	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4052865
55	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4100330
56	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4192397
57	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4196306
58	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4196385
59	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4219014
60	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4233171
61	F (uff)	65	25	95	2018-01-22 15:57:03		4283108
62	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4334776
63	Kordyum A. (alko58)	228	0	101	2017-11-21 18:18:43		4372246
64	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4374007
65	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4375075
66	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4412790
67	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4439907
68	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4472970
69	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4549615
70	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4596160
71	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4600309
72	F (uff)	65	25	185	2017-06-01 10:27:49		4621837
73	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4661710
74	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4723601
75	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4958504
76	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4993977
77	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5073200
78	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5203536
79	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5245635
80	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5415056
81	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5446743
82	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5480742
83	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5490104
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5515950
85	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5530254
86	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5531940
87	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5543549
88	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5547120
89	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5550451
90	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5594137
91	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5595404
92	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5603966
93	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5613696
94	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5622323
95	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5852761
96	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5854388
97	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5902548
98	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5930708
99	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5981058
100	Kabanets E.G. (azkaban)	94	9	209	2014-09-27 01:00:23		6030724

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