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SQL exercises

November 10, 01:31 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: 15224

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	126	185	2025-11-08 14:38:59		2092
2	Sarkis'yan G. (gennadi_s)	19	126	184	2025-10-30 12:40:58	2025-11-07 11:56:37	11476
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		175698
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		297419
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		371475
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		379573
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		409822
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		422010
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		569863
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		571171
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		593921
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		621362
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		703460
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		815525
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		815525
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		844681
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		871202
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		884834
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		950876
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		954190
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		956579
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		989244
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1034420
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1041507
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1066084
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1311115
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1348671
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1382661
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1486650
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1582815
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1622023
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1738933
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1885514
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2137270
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2265622
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2399976
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2442163
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2445910
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2687976
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2755339
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2829669
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2894623
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2902594
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2942109
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2965836
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3276225
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3303507
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3311569
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3329853
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3373931
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3513906
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3612174
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3615355
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3757546
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3818093
56	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3871452
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3918917
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4010984
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4014893
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4014972
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4037601
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4051758
63	F (uff)	65	25	95	2018-01-22 15:57:03		4101694
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4153363
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4190833
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4192594
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4193662
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4231377
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4258494
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4291557
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4368202
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4414747
73	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4418896
74	F (uff)	65	25	185	2017-06-01 10:27:49		4440424
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4480297
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4542188
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4777091
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4812564
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4891787
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5022123
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5064222
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5233643
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5265330
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5299329
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5308690
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5334537
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5348841
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5350527
89	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5362136
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5365707
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5369038
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5412724
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5413991
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5422552
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5432283
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5440909
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5671348
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5672975
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5721135
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5749295

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