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SQL exercises

December 02, 20:21 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: 15370

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	18	131	188	2025-11-30 13:49:15		3272
2	Sarkis'yan G. (gennadi_s)	18	131	187	2025-11-21 15:27:25	2025-11-25 14:09:56	5683
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		208508
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		330229
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		404285
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		412383
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		442631
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		454820
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		602673
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		603981
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		626731
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		654171
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		736270
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		848335
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		848335
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		877491
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		904012
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		917643
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		983686
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		987000
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		989389
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1022054
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1067230
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1074317
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1098893
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1343925
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1381481
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1415471
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1519460
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1615624
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1654833
32	Lukov D.R. (Gendalf)	241	0	90	2022-07-21 11:18:50		1771742
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1918324
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2170080
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2298432
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2432786
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2474973
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2478720
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2720786
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2788149
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2862479
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2927433
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2935404
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2974918
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2998646
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3309035
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3336317
48	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3344379
49	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3362662
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3406741
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3546716
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3644984
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3648165
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3790356
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3850903
56	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3904262
57	Zyrin V.E. (Vezyr)	539	0	29	2018-05-29 14:14:19		3951727
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4043793
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4047703
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4047781
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4070411
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4084568
63	F (uff)	65	25	95	2018-01-22 15:57:03		4134504
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4186173
65	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4223642
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4225404
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4226472
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4264187
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4291304
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4324367
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4401012
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4447556
73	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4451705
74	F (uff)	65	25	185	2017-06-01 10:27:49		4473233
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4513106
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4574997
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4809901
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4845374
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4924597
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5054932
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5097032
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5266452
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5298140
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5332139
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5341500
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5367346
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5381650
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5383336
89	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5394946
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5398517
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5401848
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5445533
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5446800
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5455362
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5465092
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5473719
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5704158
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5705785
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5753945
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5782105

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