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SQL exercises

June 08, 01:57 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: 15100

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	Vyazovetskov A.S. (alex_v)	7	241	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
10	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		21907
11	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		21933
12	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		33872
13	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		42513
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		55572
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		65800
16	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		66642
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		97354
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		190581
19	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		266421
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		478124
21	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		599844
22	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		681999
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		712247
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		724436
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		872288
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		873596
27	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		896347
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1005886
29	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1117951
30	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1117951
31	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1147107
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1173627
33	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1187259
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1253302
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1256615
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1259005
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1291670
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1343932
39	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1368509
40	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1685087
41	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1789075
42	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1885240
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1924449
44	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2041358
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2187939
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2439696
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2568048
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2702402
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2744588
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2748336
51	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2990402
52	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3057765
53	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3132095
54	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3197049
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3205020
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3244534
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3268262
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3578651
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3605933
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3613995
61	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3632278
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3676357
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3816332
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3914600
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3917781
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4059972
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4120519
68	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4173878
69	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4221343
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4313409
71	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4317319
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4317397
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4340027
74	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4354184
75	F (uff)	65	25	95	2018-01-22 15:57:03		4404120
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4455788
77	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4493258
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4495020
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4496088
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4533803
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4560920
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4593983
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4670627
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4717172
85	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4721321
86	F (uff)	65	25	185	2017-06-01 10:27:49		4742849
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4782722
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4844613
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5079517
90	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5114990
91	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5194213
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5324548
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5366648
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5536068
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5567756
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5601755
97	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5611116
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5636962
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5651266
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5652952

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