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SQL exercises

April 26, 02:02 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: 14620

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Slavutinskij V.V. (Vasilko)	425	0	5	2024-04-22 17:26:35		4836
2	Slavutinskij V.V. (Vasilko)	425	0	7	2024-04-22 17:26:21		4836
3	Komarov A.N. (Shveda Saulya)	53	34	151	2024-01-04 20:54:03	2024-04-16 01:11:59	147138
4	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		33992
5	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		60512
6	Latyntsev N.G. (aks_nsk)	51	37	253	2024-03-05 14:17:51		74144
7	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	305	2024-01-19 17:35:31		140187
8	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	306	2024-01-17 10:21:39		143500
9	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	71	2024-01-15 18:32:03		145890
10	Nikolaenko A.V. (Shadow77)	80	14	135	2023-12-24 02:07:10		178555
11	Komarov A.N. (Shveda Saulya)	53	34	150	2023-11-22 17:11:28		223731
12	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		230818
13	Rudikov E. (cubie)	130	0	138	2023-10-31 17:27:54		255394
14	Komarov A.N. (Shveda Saulya)	53	34	149	2023-05-14 13:36:07		500426
15	Zajtsev V.S. (Sleeping)	20	109	150	2023-04-18 11:40:16		537982
16	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		571972
17	Latyntsev N.G. (aks_nsk)	51	37	255	2023-01-12 16:01:39		675960
18	Koptel'tsev V. (selber)	25	95	237	2022-11-06 21:16:51		772125
19	Borisenkov D.V. (xuser)	94	9	173	2022-10-10 15:48:20		811334
20	Lukov D.R. (Gendalf)	231	0	90	2022-07-21 11:18:50		928243
21	Pavlov A.V. (Anton)	58	29	141	2022-04-10 16:17:39		1074824
22	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1188874
23	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1326581
24	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1454933
25	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1589287
26	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1631474
27	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1635221
28	Kozharinov A. (bubala)	196	0	10	2020-09-30 09:55:07		1877287
29	Samarin A. (not.yet.sql.master)	133	0	112	2020-08-14 15:12:10		1944650
30	Koptel'tsev V. (selber)	25	95	259	2020-06-24 00:22:07		2018980
31	Samarin A. (not.yet.sql.master)	133	0	138	2020-05-09 21:48:04		2083934
32	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2091905
33	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2131419
34	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2155147
35	Fokin A. (Vizitor )	42	52	217	2019-08-18 21:46:14		2465536
36	Bazavluk M. (DoNotLook)	92	9	141	2019-07-30 23:04:12		2492818
37	Romanov K.Yu. (kostik)	289	0	12	2019-07-25 08:42:10		2500880
38	Kordyum A. (alko58)	213	0	12	2019-07-12 15:58:52		2519163
39	Pavlov A.V. (Anton)	58	29	168	2019-06-12 01:20:21		2563242
40	Mal'tsev A.V. (Palkin)	108	8	218	2019-03-06 20:25:17		2703217
41	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		2801485
42	Grishunin M.F. (MikhailFG)	88	10	144	2018-12-26 09:36:27		2804666
43	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		2946857
44	Skorohod I. (Dracul4ik)	75	15	45	2018-08-07 14:38:23		3007404
45	Voevutskij S.A. (SergLK)	199	0	45	2018-07-01 13:19:14		3060763
46	Zyrin V.E. (Vezyr)	512	0	29	2018-05-29 14:14:19		3108228
47	Zajtsev V.S. (Sleeping)	20	109	226	2018-04-05 11:18:07		3186164
48	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3200294
49	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3204204
50	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3204282
51	Azbel' E.G. (enull)	74	15	148	2018-03-08 04:10:21		3226912
52	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3241069
53	F (uff)	63	25	95	2018-01-22 15:57:03		3291005
54	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3342673
55	Kordyum A. (alko58)	213	0	101	2017-11-21 18:18:43		3380143
56	Zajtsev V.S. (Sleeping)	20	109	190	2017-11-20 12:57:31		3381905
57	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3382973
58	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3420688
59	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3447805
60	Skorohod I. (Dracul4ik)	75	15	156	2017-09-12 19:34:33		3480868
61	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3557512
62	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3604057
63	Vorob'ev E.V. (Johnnymnemonic)	147	0	138	2017-06-16 09:15:49		3608206
64	F (uff)	63	25	185	2017-06-01 10:27:49		3629734
65	Skorohod I. (Dracul4ik)	75	15	146	2017-05-04 17:54:53		3669607
66	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		3731498
67	Skorohod I. (Dracul4ik)	75	15	144	2016-10-10 15:20:14		3966402
68	Sysoev A.V. (Sysa)	47	39	165	2016-09-16 00:07:24		4001875
69	Sysoev A.V. (Sysa)	47	39	168	2016-07-22 23:44:07		4081098
70	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4211433
71	Titovskij P.S. (kli3ma)	45	45	164	2016-03-25 05:49:30		4253533
72	Sivoglazov M.A. (Gaizenberg)	64	24	127	2015-11-28 14:08:52		4422953
73	Maslyaev V.S. (Velmont)	86	11	170	2015-11-06 14:01:20		4454641
74	Sivoglazov M.A. (Gaizenberg)	64	24	261	2015-10-13 23:22:26		4488640
75	Fomichev A.V. (Fomichev)	186	0	101	2015-10-07 11:21:04		4498001
76	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4523847
77	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4538151
78	Frolov (dr.shtopor)	78	14	141	2015-09-08 10:04:55		4539837
79	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4551446
80	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4555018
81	Halushka B. (halushka)	44	46	211	2015-08-26 13:33:28		4558349
82	Maslyaev V.S. (Velmont)	86	11	140	2015-07-27 05:27:50		4602034
83	Khromulyak O.M. (ChOleg)	117	5	150	2015-07-26 08:20:51		4603301
84	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4611863
85	Halushka B. (halushka)	44	46	143	2015-07-13 15:28:55		4621593
86	Halushka B. (halushka)	44	46	204	2015-07-07 15:42:03		4630220
87	Skorohod I. (Dracul4ik)	75	15	256	2015-01-28 15:03:11		4860659
88	Skorohod I. (Dracul4ik)	75	15	252	2015-01-27 11:56:41		4862285
89	Sysoev A.V. (Sysa)	47	39	143	2014-12-25 01:16:19		4910446
90	Grishin (alvigr)	76	15	185	2014-12-05 11:56:29		4938606
91	Fajnberg M.L. (burnall)	70	21	122	2014-10-31 12:46:14		4988956
92	Kabanets E.G. (azkaban)	90	9	209	2014-09-27 01:00:23		5038622
93	Sivoglazov M.A. (Gaizenberg)	64	24	178	2014-08-26 23:17:37		5083364
94	Perfilov B.V. (B o r i s)	97	9	29	2014-02-23 19:20:39		5348561
95	Utyonkov M.N. (=Maxim=)	46	42	255	2014-02-03 12:39:35		5377763
96	Shaymardanov M.M. (xLiSPirit)	38	62	147	2013-12-11 13:22:21		5455480
97	Martynyuk (Wiedzmen)	55	32	135	2013-11-26 20:27:27		5476655
98	Chebykin D. (GriGrim)	37	62	255	2013-11-07 15:23:46		5504318
99	Titovskij P.S. (kli3ma)	45	45	203	2013-10-31 10:01:45		5514720
100	Martynyuk (Wiedzmen)	55	32	185	2013-10-22 15:41:24		5527341

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