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SQL exercises

June 12, 17:12 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		423
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		28583
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		28609
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		40547
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		49188
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		62248
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		72476
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		73318
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		104029
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		197257
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		273096
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		484800
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		606520
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		688675
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		718923
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		731111
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		878964
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		880272
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		903023
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1012561
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1124626
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1124626
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1153782
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1180303
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1193935
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1259977
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1263291
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1265681
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1298346
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1350608
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1375185
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1691762
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1795751
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1891916
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1931125
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2048034
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2194615
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2446372
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2574724
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2709078
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2751264
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2755012
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2997078
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3064441
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3138771
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3203725
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3211695
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3251210
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3274937
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3585327
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3612609
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3620671
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3638954
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3683032
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3823008
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3921275
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3924456
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4066647
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4127194
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4180554
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4228019
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4320085
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4323994
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4324073
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4346702
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4360859
74	F (uff)	65	25	95	2018-01-22 15:57:03		4410796
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4462464
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4499934
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4501695
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4502764
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4540478
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4567595
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4600658
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4677303
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4723848
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4727997
85	F (uff)	65	25	185	2017-06-01 10:27:49		4749525
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4789398
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4851289
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5086193
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5121665
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5200889
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5331224
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5373323
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5542744
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5574432
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5608430
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5617792
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5643638
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5657942
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5659628
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5671237

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