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SQL exercises

October 13, 06:00 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: 15179

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		135648
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		257368
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		331424
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		339522
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		369771
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		381959
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		529812
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		531120
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		553871
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		581311
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		663409
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		775474
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		775474
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		804630
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		831151
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		844783
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		910825
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		914139
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		916528
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		949193
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		994369
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1001456
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1026033
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1271064
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1308620
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1342610
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1446599
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1542764
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1581972
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1698882
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1845463
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1959512
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2097219
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2225571
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2359925
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2402112
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2405859
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2647925
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2715288
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2789618
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2854572
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2862543
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2902058
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2925785
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3236174
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3263456
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3271518
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3289802
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3333880
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3473855
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3572123
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3575304
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3717495
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3778042
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3831401
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3878866
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3970933
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3974842
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3974921
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3997550
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4011707
63	F (uff)	65	25	95	2018-01-22 15:57:03		4061643
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4113312
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4150782
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4152543
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4153611
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4191326
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4218443
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4251506
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4328151
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4374696
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4378845
74	F (uff)	65	25	185	2017-06-01 10:27:49		4400373
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4440246
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4502137
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4737040
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4772513
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4851736
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4982072
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5024171
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5193592
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5225279
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5259278
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5268639
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5294486
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5308790
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5310476
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5322085
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5325656
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5328987
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5372673
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5373940
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5382501
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5392232
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5400858
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5631297
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5632924
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5681084
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5709244

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