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SQL exercises

June 12, 16:08 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: 15119

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	55	35	143	2026-06-12 10:09:54		359
2	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
3	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
4	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
5	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
6	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
7	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
8	Makarov I.A. (_Bkmz_)	55	35	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
9	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		28519
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		28545
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		40483
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		49124
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		62184
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		72411
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		73253
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		103965
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		197193
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		273032
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		484736
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		606456
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		688611
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		718859
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		731047
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		878900
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		880208
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		902959
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1012497
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1124562
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1124562
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1153718
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1180239
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1193871
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1259913
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1263227
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1265617
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1298282
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1350544
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1375121
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1691698
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1795687
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1891852
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1931060
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2047970
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2194551
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2446308
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2574660
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2709014
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2751200
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2754948
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2997014
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3064377
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3138707
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3203661
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3211631
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3251146
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3274873
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3585262
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3612545
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3620607
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3638890
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3682968
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3822943
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3921211
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3924392
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4066583
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4127130
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4180489
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4227954
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4320021
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4323930
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4324009
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4346638
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4360795
74	F (uff)	65	25	95	2018-01-22 15:57:03		4410732
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4462400
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4499870
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4501631
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4502699
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4540414
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4567531
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4600594
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4677239
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4723784
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4727933
85	F (uff)	65	25	185	2017-06-01 10:27:49		4749461
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4789334
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4851225
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5086128
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5121601
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5200825
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5331160
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5373259
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5542680
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5574367
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5608366
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5617728
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5643574
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5657878
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5659564
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5671173

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