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SQL exercises

June 10, 22:36 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: 15116

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	Vyazovetskov A.S. (alex_v)	7	241	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
9	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		26026
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		26052
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		37991
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		46632
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		59691
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		69919
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		70761
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		101473
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		194700
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		270540
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		482243
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		603964
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		686118
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		716366
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		728555
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		876408
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		877716
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		900466
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1010005
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1122070
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1122070
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1151226
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1177747
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1191378
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1257421
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1260735
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1263124
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1295789
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1348052
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1372628
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1689206
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1793195
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1889359
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1928568
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2045477
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2192059
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2443815
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2572167
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2706521
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2748708
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2752455
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2994521
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3061884
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3136214
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3201168
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3209139
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3248653
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3272381
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3582770
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3610052
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3618114
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3636397
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3680476
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3820451
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3918719
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3921900
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4064091
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4124638
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4177997
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4225462
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4317528
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4321438
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4321516
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4344146
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4358303
74	F (uff)	65	25	95	2018-01-22 15:57:03		4408239
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4459908
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4497377
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4499139
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4500207
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4537922
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4565039
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4598102
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4674747
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4721291
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4725440
85	F (uff)	65	25	185	2017-06-01 10:27:49		4746968
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4786841
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4848732
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5083636
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5119109
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5198332
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5328667
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5370767
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5540187
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5571875
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5605874
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5615235
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5641081
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5655385
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5657071
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5668681

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