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SQL exercises

November 19, 18:21 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: 15266

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	128	186	2025-11-12 16:36:56	2025-11-14 15:14:47	2798
2	Sarkis'yan G. (gennadi_s)	19	128	185	2025-11-08 14:38:59	2025-11-10 12:02:03	2723
3	Sarkis'yan G. (gennadi_s)	19	128	184	2025-10-30 12:40:58	2025-11-07 11:56:37	11476
4	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		189668
5	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		311389
6	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		385445
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		393543
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		423791
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		435980
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		583832
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		585141
12	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		607891
13	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		635331
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		717430
15	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		829495
16	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		829495
17	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		858651
18	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		885171
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		898803
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		964846
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		968159
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		970549
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1003214
24	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1048390
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1055477
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1080053
27	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1325085
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1362641
29	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1396631
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1500619
31	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1596784
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1635993
33	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1752902
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1899483
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2151240
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2279592
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2413946
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2456133
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2459880
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2701946
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2769309
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2843639
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2908593
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2916564
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2956078
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2979806
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3290195
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3317477
49	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3325539
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3343822
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3387901
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3527876
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3626144
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3629325
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3771516
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3832063
57	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3885422
58	Zyrin V.E. (Vezyr)	539	0	29	2018-05-29 14:14:19		3932887
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4024953
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4028863
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4028941
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4051571
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4065728
64	F (uff)	65	25	95	2018-01-22 15:57:03		4115664
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4167332
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4204802
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4206564
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4207632
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4245347
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4272464
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4305527
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4382172
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4428716
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4432865
75	F (uff)	65	25	185	2017-06-01 10:27:49		4454393
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4494266
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4556157
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4791061
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4826534
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4905757
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5036092
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5078192
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5247612
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5279300
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5313299
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5322660
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5348506
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5362810
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5364496
90	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5376106
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5379677
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5383008
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5426693
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5427960
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5436522
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5446252
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5454879
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5685318
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5686944
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5735105

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