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SQL exercises

November 30, 19:25 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: 15296

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		336
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		205573
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		327293
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		401349
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		409448
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		439696
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		451884
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		599737
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		601045
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		623796
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		651236
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		733334
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		845399
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		845399
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		874555
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		901076
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		914708
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		980750
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		984064
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		986454
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1019119
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1064294
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1071381
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1095958
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1340990
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1378545
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1412535
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1516524
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1612689
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1651897
32	Lukov D.R. (Gendalf)	241	0	90	2022-07-21 11:18:50		1768807
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1915388
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2167145
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2295497
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2429851
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2472037
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2475785
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2717851
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2785214
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2859544
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2924498
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2932468
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2971983
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2995710
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3306100
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3333382
48	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3341444
49	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3359727
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3403805
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3543780
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3642048
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3645229
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3787420
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3847967
56	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3901327
57	Zyrin V.E. (Vezyr)	539	0	29	2018-05-29 14:14:19		3948791
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4040858
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4044767
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4044846
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4067475
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4081632
63	F (uff)	65	25	95	2018-01-22 15:57:03		4131569
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4183237
65	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4220707
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4222468
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4223536
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4261251
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4288368
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4321431
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4398076
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4444621
73	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4448770
74	F (uff)	65	25	185	2017-06-01 10:27:49		4470298
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4510171
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4572062
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4806966
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4842438
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4921662
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5051997
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5094096
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5263517
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5295204
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5329203
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5338565
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5364411
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5378715
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5380401
89	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5392010
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5395581
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5398912
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5442598
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5443865
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5452427
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5462157
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5470784
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5701223
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5702849
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5751009
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5779169

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