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SQL exercises

October 29, 02:47 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: 13956

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		13426
3	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
4	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		26507
5	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		41394
6	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		74557
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		88626
8	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		99135
9	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		128954
10	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		131846
11	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		140555
12	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		143323
13	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		193449
14	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		227878
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		261543
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		271771
17	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		272613
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		303324
19	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		396552
20	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		472392
21	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		684095
22	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		918218
23	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		930406
24	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1078259
25	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1079567
26	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1102318
27	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1211857
28	Slavutinskij V.V. (Vasilko)	459	0	5	2024-04-22 17:26:35		1323921
29	Slavutinskij V.V. (Vasilko)	459	0	7	2024-04-22 17:26:21		1323922
30	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1353077
31	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1379598
32	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1393230
33	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1459272
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1462586
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1464976
36	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1497641
37	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1549903
38	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1574480
39	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1891057
40	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1995046
41	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2091211
42	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2130420
43	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2247329
44	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2393910
45	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2645667
46	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2774019
47	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2908373
48	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2950559
49	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2954307
50	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3196373
51	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3263736
52	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3338066
53	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3403020
54	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3410990
55	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3450505
56	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3474232
57	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3784622
58	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3811904
59	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3819966
60	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3838249
61	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3882328
62	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4022303
63	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4120570
64	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4123751
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4265942
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4326490
67	Voevutskij S.A. (SergLK)	221	0	45	2018-07-01 13:19:14		4379849
68	Zyrin V.E. (Vezyr)	554	0	29	2018-05-29 14:14:19		4427314
69	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4519380
70	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4523289
71	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4523368
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4545998
73	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4560154
74	F (uff)	66	23	95	2018-01-22 15:57:03		4610091
75	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4661759
76	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4699229
77	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4700990
78	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4702059
79	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4739774
80	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4766890
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4799953
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4876598
83	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4923143
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4927292
85	F (uff)	66	23	185	2017-06-01 10:27:49		4948820
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4988693
87	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5050584
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5285488
89	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5320960
90	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5400184
91	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5530519
92	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5572618
93	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5742039
94	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5773727
95	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5807725
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5817087
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5842933
98	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5857237
99	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5858923
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5870532

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