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SQL exercises

May 25, 18:52 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: 15096

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	9	226	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
2	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57		2671
3	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		2763
4	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		2789
5	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26	2026-05-23 19:54:13	265
6	Makarov I.A. (_Bkmz_)	56	32	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
7	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
8	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
9	Vyazovetskov A.S. (alex_v)	9	226	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
10	Makarov I.A. (_Bkmz_)	56	32	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		14727
12	Vyazovetskov A.S. (alex_v)	9	226	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
13	Vyazovetskov A.S. (alex_v)	9	226	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
14	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		23368
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		36427
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		46655
17	Vyazovetskov A.S. (alex_v)	9	226	264	2026-04-22 19:15:17		47497
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		78209
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		171436
20	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		247276
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		458980
22	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		580700
23	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		662854
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		693103
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		705291
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		853144
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		854452
28	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		877203
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		986741
30	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1098806
31	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1098806
32	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1127962
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1154483
34	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1168115
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1234157
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1237471
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1239860
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1272525
39	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1324788
40	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1349365
41	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1665942
42	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1769931
43	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1866096
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1905304
45	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2022214
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2168795
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2420551
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2548903
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2683257
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2725444
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2729191
52	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2971257
53	Samarin A. (not.yet.sql.master)	145	0	112	2020-08-14 15:12:10		3038620
54	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3112950
55	Samarin A. (not.yet.sql.master)	145	0	138	2020-05-09 21:48:04		3177904
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3185875
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3225390
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3249117
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3559506
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3586788
61	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3594850
62	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3613134
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3657212
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3797187
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3895455
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3898636
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4040827
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4101374
69	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4154733
70	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4202198
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4294265
72	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4298174
73	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4298253
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4320882
75	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4335039
76	F (uff)	65	25	95	2018-01-22 15:57:03		4384975
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4436644
78	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4474114
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4475875
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4476943
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4514658
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4541775
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4574838
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4651483
85	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4698028
86	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4702177
87	F (uff)	65	25	185	2017-06-01 10:27:49		4723705
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4763578
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4825469
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5060372
91	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5095845
92	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5175068
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5305404
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5347503
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5516924
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5548611
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5582610
98	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5591971
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5617818
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5632122

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