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SQL exercises

October 16, 03:14 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: 15204

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	182	2025-10-13 15:25:57		3589
2	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		139802
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		261522
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		335578
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		343677
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		373925
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		386113
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		533966
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		535274
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		558025
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		585465
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		667564
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		779628
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		779629
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		808784
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		835305
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		848937
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		914979
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		918293
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		920683
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		953348
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		998523
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1005610
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1030187
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1275219
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1312775
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1346765
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1450753
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1546918
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1586127
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1703036
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1849617
34	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1963667
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2101374
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2229726
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2364080
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2406266
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2410014
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2652080
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2719443
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2793773
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2858727
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2866698
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2906212
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2929939
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3240329
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3267611
49	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3275673
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3293956
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3338035
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3478010
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3576278
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3579459
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3721649
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3782197
57	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3835556
58	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3883021
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3975087
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3978996
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3979075
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4001705
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4015861
64	F (uff)	65	25	95	2018-01-22 15:57:03		4065798
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4117466
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4154936
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4156697
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4157766
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4195481
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4222598
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4255660
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4332305
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4378850
74	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4382999
75	F (uff)	65	25	185	2017-06-01 10:27:49		4404527
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4444400
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4506291
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4741195
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4776668
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4855891
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4986226
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5028325
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5197746
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5229434
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5263433
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5272794
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5298640
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5312944
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5314630
90	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5326239
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5329810
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5333141
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5376827
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5378094
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5386656
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5396386
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5405013
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5635452
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5637078
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5685239

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