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SQL exercises

November 08, 13:26 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: 13923

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Kuritsyn V.N. (ValNick)	137	0	53	2026-11-04 16:28:05	2026-11-05 02:38:55	611
2	Sarkis'yan G. (gennadi_s)	13	193	210	2026-11-03 14:52:53		7114
3	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59	2026-11-03 11:42:59	49129
4	Sarkis'yan G. (gennadi_s)	13	193	209	2026-10-30 12:41:46	2026-10-30 14:06:57	85
5	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		28465
6	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		41546
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		89596
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		103665
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		114174
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		143993
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		146885
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		155594
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		158362
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		208488
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		242917
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		276582
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		286810
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		287651
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		318363
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		411591
21	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		487430
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		699134
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		933257
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		945445
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1093298
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1094606
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1117357
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1226895
29	Slavutinskij V.V. (Vasilko)	460	0	5	2024-04-22 17:26:35		1338960
30	Slavutinskij V.V. (Vasilko)	460	0	7	2024-04-22 17:26:21		1338960
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1368116
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1394637
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1408269
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1474311
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1477625
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1480015
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1512680
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1564942
39	Rudikov E. (cubie)	138	0	138	2023-10-31 17:27:54		1589519
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1906096
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		2010085
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2106250
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2145458
44	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2262368
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2408949
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2660706
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2789058
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2923412
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2965598
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2969346
51	Kozharinov A. (bubala)	216	0	10	2020-09-30 09:55:07		3211412
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3278775
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3353105
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3418059
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3426029
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3465544
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3489271
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3799661
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3826943
60	Romanov K.Yu. (kostik)	314	0	12	2019-07-25 08:42:10		3835005
61	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3853288
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3897366
63	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4037341
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4135609
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4138790
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4280981
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4341528
68	Voevutskij S.A. (SergLK)	222	0	45	2018-07-01 13:19:14		4394888
69	Zyrin V.E. (Vezyr)	555	0	29	2018-05-29 14:14:19		4442352
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4534419
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4538328
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4538407
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4561036
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4575193
75	F (uff)	66	23	95	2018-01-22 15:57:03		4625130
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4676798
77	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4714268
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4716029
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4717097
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4754812
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4781929
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4814992
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4891637
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4938182
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4942331
86	F (uff)	66	23	185	2017-06-01 10:27:49		4963859
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		5003732
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5065623
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5300527
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5335999
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5415223
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5545558
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5587657
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5757078
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5788765
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5822764
97	Fomichev A.V. (Fomichev)	201	0	101	2015-10-07 11:21:04		5832126
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5857972
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5872276
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5873962

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