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SQL exercises

October 10, 01:01 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: 15188

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		131029
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		252749
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		326805
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		334904
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		365152
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		377340
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		525193
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		526501
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		549252
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		576692
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		658790
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		770855
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		770855
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		800011
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		826532
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		840164
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		906206
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		909520
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		911910
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		944575
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		989750
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		996837
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1021414
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1266446
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1304002
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1337991
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1441980
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1538145
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1577353
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1694263
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1840844
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1954894
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2092601
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2220953
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2355307
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2397493
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2401241
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2643307
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2710670
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2785000
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2849954
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2857924
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2897439
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2921166
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3231556
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3258838
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3266900
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3285183
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3329261
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3469237
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3567504
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3570685
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3712876
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3773423
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3826783
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3874247
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3966314
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3970223
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3970302
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3992931
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4007088
63	F (uff)	65	25	95	2018-01-22 15:57:03		4057025
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4108693
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4146163
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4147924
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4148993
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4186707
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4213824
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4246887
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4323532
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4370077
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4374226
74	F (uff)	65	25	185	2017-06-01 10:27:49		4395754
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4435627
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4497518
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4732422
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4767894
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4847118
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4977453
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5019552
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5188973
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5220660
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5254659
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5264021
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5289867
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5304171
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5305857
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5317466
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5321037
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5324368
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5368054
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5369321
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5377883
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5387613
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5396240
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5626679
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5628305
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5676465
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5704625

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