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SQL exercises

June 05, 05:00 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: 15119

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	7	238	163	2026-06-04 13:05:06		955
2	Vyazovetskov A.S. (alex_v)	7	238	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
3	Vyazovetskov A.S. (alex_v)	7	238	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
4	Makarov I.A. (_Bkmz_)	55	33	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
5	Vyazovetskov A.S. (alex_v)	7	238	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
6	Vyazovetskov A.S. (alex_v)	7	238	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
7	Vyazovetskov A.S. (alex_v)	7	238	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
8	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57		17679
9	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		17771
10	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		17797
11	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26	2026-05-23 19:54:13	265
12	Makarov I.A. (_Bkmz_)	55	33	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
13	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
14	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		29735
15	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		38376
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		51435
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		61663
18	Vyazovetskov A.S. (alex_v)	7	238	264	2026-04-22 19:15:17		62505
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		93217
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		186444
21	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		262284
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		473988
23	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		595708
24	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		677863
25	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		708111
26	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		720299
27	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		868152
28	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		869460
29	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		892211
30	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1001749
31	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1113814
32	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1113814
33	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1142970
34	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1169491
35	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1183123
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1249165
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1252479
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1254869
39	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1287533
40	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1339796
41	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1364373
42	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1680950
43	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1784939
44	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1881104
45	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1920312
46	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2037222
47	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2183803
48	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2435560
49	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2563911
50	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2698265
51	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2740452
52	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2744199
53	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2986265
54	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3053628
55	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3127958
56	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3192913
57	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3200883
58	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3240398
59	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3264125
60	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3574514
61	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3601796
62	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3609858
63	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3628142
64	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3672220
65	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3812195
66	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3910463
67	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3913644
68	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4055835
69	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4116382
70	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4169741
71	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4217206
72	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4309273
73	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4313182
74	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4313261
75	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4335890
76	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4350047
77	F (uff)	65	25	95	2018-01-22 15:57:03		4399984
78	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4451652
79	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4489122
80	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4490883
81	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4491951
82	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4529666
83	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4556783
84	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4589846
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4666491
86	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4713036
87	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4717185
88	F (uff)	65	25	185	2017-06-01 10:27:49		4738713
89	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4778586
90	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4840477
91	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5075380
92	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5110853
93	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5190076
94	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5320412
95	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5362511
96	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5531932
97	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5563619
98	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5597618
99	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5606980
100	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5632826

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