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SQL exercises

May 09, 21:23 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: 15075

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		479
2	Vyazovetskov A.S. (alex_v)	11	216	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
3	Vyazovetskov A.S. (alex_v)	11	216	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
4	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
5	Vyazovetskov A.S. (alex_v)	11	216	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
6	Vyazovetskov A.S. (alex_v)	11	216	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
7	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
8	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
9	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
10	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		13538
11	Sarkis'yan G. (gennadi_s)	15	170	200	2026-04-27 16:55:45	2026-04-29 19:00:00	3004
12	Polyakov V.M. (rock_4)	76	15	152	2026-04-16 13:35:42	2026-04-29 17:07:29	18932
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		23766
14	Vyazovetskov A.S. (alex_v)	11	216	264	2026-04-22 19:15:17		24608
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		55320
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		148547
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		224387
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		436090
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		557810
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		639965
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		670213
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		682402
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		830254
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		831562
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		854313
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		963852
27	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1075916
28	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1075917
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1105073
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1131593
31	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1145225
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1211268
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1214581
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1216971
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1249636
36	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1301898
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1326475
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1643053
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1747041
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1843206
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1882415
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1999324
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2145905
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2397662
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2526014
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2660368
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2702554
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2706302
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2948368
50	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3015731
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3090061
52	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3155015
53	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3162986
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3202500
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3226227
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3536617
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3563899
58	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3571961
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3590244
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3634323
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3774298
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3872566
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3875747
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4017938
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4078485
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4131844
67	Zyrin V.E. (Vezyr)	548	0	29	2018-05-29 14:14:19		4179309
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4271375
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4275284
70	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4275363
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4297993
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4312150
73	F (uff)	65	25	95	2018-01-22 15:57:03		4362086
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4413754
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4451224
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4452986
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4454054
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4491769
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4518886
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4551948
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4628593
82	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4675138
83	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4679287
84	F (uff)	65	25	185	2017-06-01 10:27:49		4700815
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4740688
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4802579
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5037483
88	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5072956
89	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5152179
90	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5282514
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5324614
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5494034
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5525722
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5559721
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5569082
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5594928
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5609232
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5610918
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5622527
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5626099

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