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SQL exercises

June 12, 06:54 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	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
2	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
3	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
4	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
5	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
6	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
7	Makarov I.A. (_Bkmz_)	55	35	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
8	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		27965
9	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		27991
10	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		39929
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		48570
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		61629
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		71857
14	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		72699
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		103411
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		196638
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		272478
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		484182
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		605902
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		688057
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		718305
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		730493
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		878346
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		879654
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		902405
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1011943
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1124008
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1124008
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1153164
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1179685
31	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1193317
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1259359
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1262673
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1265063
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1297727
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1349990
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1374567
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1691144
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1795133
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1891298
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1930506
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2047416
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2193997
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2445754
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2574106
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2708460
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2750646
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2754393
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2996460
50	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3063822
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3138153
52	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3203107
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3211077
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3250592
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3274319
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3584708
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3611990
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3620052
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3638336
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3682414
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3822389
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3920657
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3923838
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4066029
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4126576
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4179935
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4227400
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4319467
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4323376
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4323455
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4346084
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4360241
73	F (uff)	65	25	95	2018-01-22 15:57:03		4410178
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4461846
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4499316
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4501077
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4502145
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4539860
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4566977
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4600040
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4676685
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4723230
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4727379
84	F (uff)	65	25	185	2017-06-01 10:27:49		4748907
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4788780
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4850671
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5085574
88	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5121047
89	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5200271
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5330606
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5372705
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5542126
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5573813
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5607812
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5617174
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5643020
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5657324
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5659010
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5670619
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5674190

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