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SQL exercises

October 04, 00:46 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: 13876

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	130	2	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
2	Filippkin D.V. (_dimon_)	3	259	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
3	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		5273
4	Vinogradova S.M. (Tigra1)	130	2	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
5	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
6	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
7	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
8	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		38436
9	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		52505
10	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		63014
11	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		92833
12	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		95725
13	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		104434
14	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		107202
15	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		157328
16	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		191757
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		225422
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		235650
19	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		236492
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		267203
21	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		360431
22	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		436270
23	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		647974
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		882097
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		894285
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1042138
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1043446
28	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1066197
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1175735
30	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1287800
31	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1287800
32	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1316956
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1343477
34	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1357109
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1423151
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1426465
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1428855
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1461520
39	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1513782
40	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1538359
41	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1854936
42	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1958925
43	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2055090
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2094298
45	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2211208
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2357789
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2609546
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2737898
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2872252
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2914438
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2918186
52	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3160252
53	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3227615
54	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3301945
55	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3366899
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3374869
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3414384
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3438111
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3748501
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3775783
61	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3783845
62	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3802128
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3846206
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3986182
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4084449
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4087630
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4229821
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4290368
69	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4343728
70	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4391192
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4483259
72	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4487168
73	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4487247
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4509876
75	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4524033
76	F (uff)	65	25	95	2018-01-22 15:57:03		4573970
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4625638
78	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4663108
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4664869
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4665938
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4703652
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4730769
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4763832
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4840477
85	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4887022
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4891171
87	F (uff)	65	25	185	2017-06-01 10:27:49		4912699
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4952572
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5014463
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5249367
91	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5284839
92	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5364063
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5494398
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5536497
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5705918
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5737605
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5771604
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5780966
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5806812
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5821116

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