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SQL exercises

June 20, 11:08 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: 15110

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		5309
2	Makarov I.A. (_Bkmz_)	49	40	143	2026-06-12 10:09:54	2026-06-13 03:07:28	1018
3	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		39738
4	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		39764
5	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		51703
6	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		60344
7	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		73403
8	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		83631
9	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		84473
10	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		115185
11	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		208412
12	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		284252
13	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		495955
14	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		617676
15	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		699830
16	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		730078
17	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		742267
18	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		890119
19	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		891428
20	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		914178
21	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1023717
22	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1135782
23	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1135782
24	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1164938
25	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1191458
26	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1205090
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1271133
28	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1274446
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1276836
30	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1309501
31	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1361764
32	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1386340
33	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1702918
34	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1806906
35	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1903071
36	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1942280
37	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2059189
38	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2205770
39	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2457527
40	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2585879
41	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2720233
42	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2762420
43	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2766167
44	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		3008233
45	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3075596
46	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3149926
47	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3214880
48	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3222851
49	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3262365
50	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3286093
51	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3596482
52	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3623764
53	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3631826
54	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3650109
55	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3694188
56	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3834163
57	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3932431
58	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3935612
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4077803
60	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4138350
61	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4191709
62	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4239174
63	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4331240
64	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4335150
65	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4335228
66	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4357858
67	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4372015
68	F (uff)	65	25	95	2018-01-22 15:57:03		4421951
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4473619
70	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4511089
71	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4512851
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4513919
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4551634
74	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4578751
75	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4611814
76	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4688459
77	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4735003
78	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4739152
79	F (uff)	65	25	185	2017-06-01 10:27:49		4760680
80	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4800553
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4862444
82	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5097348
83	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5132821
84	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5212044
85	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5342379
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5384479
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5553899
88	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5585587
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5619586
90	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5628947
91	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5654793
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5669097
93	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5670783
94	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5682393
95	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5685964
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5689295
97	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5732980
98	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5734247
99	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5742809
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5752539

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