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SQL exercises

May 09, 09:42 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: 15073

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	216	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
2	Vyazovetskov A.S. (alex_v)	11	216	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
3	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
4	Vyazovetskov A.S. (alex_v)	11	216	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
5	Vyazovetskov A.S. (alex_v)	11	216	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
6	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
7	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
8	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
9	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		12837
10	Sarkis'yan G. (gennadi_s)	15	170	200	2026-04-27 16:55:45	2026-04-29 19:00:00	3004
11	Polyakov V.M. (rock_4)	76	15	152	2026-04-16 13:35:42	2026-04-29 17:07:29	18932
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		23065
13	Vyazovetskov A.S. (alex_v)	11	216	264	2026-04-22 19:15:17		23907
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		54619
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		147846
16	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		223686
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		435389
18	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		557109
19	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		639264
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		669512
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		681701
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		829553
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		830861
24	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		853612
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		963151
26	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1075215
27	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1075216
28	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1104372
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1130892
30	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1144524
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1210567
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1213880
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1216270
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1248935
35	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1301197
36	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1325774
37	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1642352
38	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1746340
39	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1842505
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1881714
41	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1998623
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2145204
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2396961
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2525313
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2659667
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2701853
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2705601
48	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2947667
49	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3015030
50	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3089360
51	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3154314
52	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3162285
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3201799
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3225527
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3535916
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3563198
57	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3571260
58	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3589543
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3633622
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3773597
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3871865
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3875046
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4017237
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4077784
65	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4131143
66	Zyrin V.E. (Vezyr)	548	0	29	2018-05-29 14:14:19		4178608
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4270674
68	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4274584
69	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4274662
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4297292
71	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4311449
72	F (uff)	65	25	95	2018-01-22 15:57:03		4361385
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4413053
74	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4450523
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4452285
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4453353
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4491068
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4518185
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4551247
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4627892
81	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4674437
82	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4678586
83	F (uff)	65	25	185	2017-06-01 10:27:49		4700114
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4739987
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4801878
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5036782
87	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5072255
88	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5151478
89	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5281813
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5323913
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5493333
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5525021
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5559020
94	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5568381
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5594227
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5608531
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5610217
98	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5621826
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5625398
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5628729

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