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SQL exercises

October 09, 01:31 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: 15183

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		129619
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		251339
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		325395
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		333494
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		363742
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		375930
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		523783
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		525091
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		547842
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		575282
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		657380
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		769445
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		769445
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		798601
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		825122
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		838754
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		904796
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		908110
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		910500
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		943165
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		988340
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		995427
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1020004
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1265036
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1302592
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1336581
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1440570
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1536735
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1575943
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1692853
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1839434
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1953484
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2091191
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2219543
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2353897
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2396083
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2399831
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2641897
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2709260
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2783590
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2848544
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2856514
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2896029
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2919756
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3230146
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3257428
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3265490
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3283773
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3327851
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3467827
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3566094
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3569275
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3711466
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3772013
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3825373
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3872838
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3964904
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3968813
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3968892
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3991521
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4005678
63	F (uff)	65	25	95	2018-01-22 15:57:03		4055615
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4107283
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4144753
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4146514
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4147583
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4185297
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4212414
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4245477
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4322122
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4368667
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4372816
74	F (uff)	65	25	185	2017-06-01 10:27:49		4394344
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4434217
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4496108
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4731012
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4766484
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4845708
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4976043
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5018142
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5187563
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5219250
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5253249
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5262611
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5288457
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5302761
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5304447
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5316056
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5319627
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5322958
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5366644
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5367911
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5376473
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5386203
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5394830
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5625269
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5626895
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5675056
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5703215

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