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SQL exercises

March 15, 00:11 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: 15391

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	20	122	179	2026-02-21 19:34:16	2026-03-09 22:57:01	23243
2	Polyakov V.M. (rock_4)	133	0	138	2026-02-20 17:03:21		32109
3	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		68076
4	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		143916
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		355619
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		477339
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		559494
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		589742
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		601930
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		749783
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		751091
12	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		773842
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		883381
14	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		995445
15	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		995446
16	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1024601
17	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1051122
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1064754
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1130796
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1134110
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1136500
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1169165
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1221427
24	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1246004
25	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1528592
26	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1562581
27	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1666570
28	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1762735
29	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1801944
30	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1918853
31	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2065434
32	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2317191
33	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2445543
34	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2579897
35	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2622083
36	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2625831
37	Kozharinov A. (bubala)	210	0	10	2020-09-30 09:55:07		2867897
38	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2935260
39	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3009590
40	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3074544
41	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3082514
42	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3122029
43	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3145756
44	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3456146
45	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3483428
46	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3491490
47	Kordyum A. (alko58)	228	0	12	2019-07-12 15:58:52		3509773
48	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3553852
49	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3693827
50	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3792094
51	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3795275
52	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3937466
53	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3998014
54	Voevutskij S.A. (SergLK)	216	0	45	2018-07-01 13:19:14		4051373
55	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4098838
56	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4190904
57	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4194813
58	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4194892
59	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4217522
60	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4231678
61	F (uff)	65	25	95	2018-01-22 15:57:03		4281615
62	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4333283
63	Kordyum A. (alko58)	228	0	101	2017-11-21 18:18:43		4370753
64	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4372514
65	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4373583
66	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4411298
67	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4438414
68	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4471477
69	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4548122
70	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4594667
71	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4598816
72	F (uff)	65	25	185	2017-06-01 10:27:49		4620344
73	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4660217
74	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4722108
75	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4957012
76	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4992485
77	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5071708
78	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5202043
79	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5244142
80	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5413563
81	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5445251
82	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5479249
83	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5488611
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5514457
85	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5528761
86	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5530447
87	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5542056
88	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5545627
89	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5548958
90	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5592644
91	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5593911
92	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5602473
93	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5612203
94	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5620830
95	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5851269
96	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5852895
97	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5901056
98	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5929215
99	Fajnberg M.L. (burnall)	73	21	122	2014-10-31 12:46:14		5979566
100	Kabanets E.G. (azkaban)	94	9	209	2014-09-27 01:00:23		6029232

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