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SQL exercises

November 11, 23:38 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: 15250

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	127	185	2025-11-08 14:38:59	2025-11-10 12:02:03	2723
2	Sarkis'yan G. (gennadi_s)	19	127	184	2025-10-30 12:40:58	2025-11-07 11:56:37	11476
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		178465
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		300186
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		374242
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		382340
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		412588
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		424777
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		572629
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		573938
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		596688
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		624128
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		706227
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		818292
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		818292
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		847448
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		873968
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		887600
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		953643
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		956956
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		959346
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		992011
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1037187
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1044274
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1068850
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1313882
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1351438
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1385428
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1489416
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1585581
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1624790
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1741699
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1888280
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2140037
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2268389
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2402743
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2444930
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2448677
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2690743
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2758106
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2832436
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2897390
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2905361
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2944875
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2968603
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3278992
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3306274
48	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3314336
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3332619
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3376698
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3516673
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3614941
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3618122
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3760313
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3820860
56	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3874219
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3921684
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4013750
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4017660
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4017738
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4040368
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4054525
63	F (uff)	65	25	95	2018-01-22 15:57:03		4104461
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4156129
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4193599
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4195361
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4196429
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4234144
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4261261
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4294324
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4370969
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4417513
73	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4421662
74	F (uff)	65	25	185	2017-06-01 10:27:49		4443190
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4483063
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4544954
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4779858
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4815331
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4894554
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5024889
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5066989
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5236409
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5268097
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5302096
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5311457
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5337303
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5351607
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5353293
89	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5364903
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5368474
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5371805
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5415490
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5416757
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5425319
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5435049
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5443676
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5674115
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5675741
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5723902
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5752062

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