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SQL exercises

January 09, 11:09 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: 15337

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	138	189	2025-12-25 14:50:28	2026-01-05 12:53:05	15723
2	Petrov Y. (YuriPetrov)	32	76	233	2026-01-03 02:07:30	2026-01-05 04:08:29	3001
3	Koptel'tsev V. (selber)	21	119	149	2025-12-24 22:13:41	2026-01-04 12:09:17	15236
4	Petrov Y. (YuriPetrov)	32	76	219	2025-12-31 15:27:52	2025-12-31 20:05:34	278
5	Petrov Y. (YuriPetrov)	32	76	215	2025-12-29 23:33:14	2025-12-30 01:24:17	111
6	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		50973
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		262676
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		384397
9	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		458453
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		466551
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		496799
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		508988
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		656841
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		658149
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		680899
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		708339
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		790438
18	Slavutinskij V.V. (Vasilko)	448	0	5	2024-04-22 17:26:35		902503
19	Slavutinskij V.V. (Vasilko)	448	0	7	2024-04-22 17:26:21		902503
20	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		931659
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		958180
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		971811
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1037854
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1041168
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1043557
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1076222
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1121398
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1128485
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1153061
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1398093
31	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1435649
32	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1469639
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1573628
34	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1669792
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1709001
36	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1825910
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1972492
38	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2224248
39	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2352600
40	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2486954
41	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2529141
42	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2532888
43	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2774954
44	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2842317
45	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2916647
46	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		2981601
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2989572
48	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3029086
49	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3052814
50	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3363203
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3390485
52	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3398547
53	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3416830
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3460909
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3600884
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3699152
57	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3702333
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3844524
59	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3905071
60	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3958430
61	Zyrin V.E. (Vezyr)	540	0	29	2018-05-29 14:14:19		4005895
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4097961
63	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4101871
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4101949
65	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4124579
66	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4138736
67	F (uff)	65	25	95	2018-01-22 15:57:03		4188672
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4240341
69	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4277811
70	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4279572
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4280640
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4318355
73	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4345472
74	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4378535
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4455180
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4501724
77	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4505873
78	F (uff)	65	25	185	2017-06-01 10:27:49		4527401
79	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4567274
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4629165
81	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4864069
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4899542
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4978765
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5109101
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5151200
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5320620
87	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5352308
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5386307
89	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5395668
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5421514
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5435818
92	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5437504
93	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5449114
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5452685
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5456016
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5499701
97	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5500968
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5509530
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5519260
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5527887

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