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SQL exercises

October 30, 08:39 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: 13964

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	13	192	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
2	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		15217
3	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		28298
4	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		43186
5	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		76348
6	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		90418
7	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		100927
8	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		130746
9	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		133638
10	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		142346
11	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		145114
12	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		195241
13	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		229670
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		263334
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		273562
16	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		274404
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		305116
18	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		398343
19	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		474183
20	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		685887
21	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		920010
22	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		932198
23	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1080051
24	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1081359
25	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1104110
26	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1213648
27	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1325713
28	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1325713
29	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1354869
30	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1381390
31	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1395022
32	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1461064
33	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1464378
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1466767
35	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1499432
36	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1551695
37	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1576272
38	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1892849
39	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1996838
40	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2093003
41	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2132211
42	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2249121
43	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2395702
44	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2647459
45	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2775810
46	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2910164
47	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2952351
48	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2956098
49	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3198164
50	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3265527
51	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3339857
52	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3404811
53	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3412782
54	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3452297
55	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3476024
56	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3786413
57	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3813695
58	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3821757
59	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3840041
60	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3884119
61	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4024094
62	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4122362
63	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4125543
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4267734
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4328281
66	Voevutskij S.A. (SergLK)	221	0	45	2018-07-01 13:19:14		4381640
67	Zyrin V.E. (Vezyr)	554	0	29	2018-05-29 14:14:19		4429105
68	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4521172
69	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4525081
70	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4525160
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4547789
72	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4561946
73	F (uff)	66	23	95	2018-01-22 15:57:03		4611882
74	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4663551
75	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4701021
76	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4702782
77	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4703850
78	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4741565
79	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4768682
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4801745
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4878390
82	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4924935
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4929084
84	F (uff)	66	23	185	2017-06-01 10:27:49		4950612
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4990485
86	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5052376
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5287279
88	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5322752
89	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5401975
90	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5532311
91	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5574410
92	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5743831
93	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5775518
94	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5809517
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5818878
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5844725
97	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5859029
98	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5860715
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5872324
100	Chebykin D. (GriGrim)	39	60	263	2015-08-28 21:04:30		5875895

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