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SQL exercises

May 18, 20:57 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: 15088

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	221	230	2026-05-18 12:59:52		477
2	Makarov I.A. (_Bkmz_)	59	29	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
3	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		4772
4	Vyazovetskov A.S. (alex_v)	11	221	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
5	Vyazovetskov A.S. (alex_v)	11	221	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
6	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		13413
7	Vyazovetskov A.S. (alex_v)	11	221	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
8	Vyazovetskov A.S. (alex_v)	11	221	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
9	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
10	Vyazovetskov A.S. (alex_v)	11	221	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
11	Vyazovetskov A.S. (alex_v)	11	221	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
12	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		26472
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		36700
15	Vyazovetskov A.S. (alex_v)	11	221	264	2026-04-22 19:15:17		37542
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		68254
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		161481
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		237321
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		449024
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		570745
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		652899
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		683147
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		695336
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		843189
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		844497
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		867247
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		976786
28	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1088851
29	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1088851
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1118007
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1144528
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1158159
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1224202
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1227516
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1229905
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1262570
37	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1314833
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1339409
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1655987
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1759976
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1856140
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1895349
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2012258
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2158840
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2410596
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2538948
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2673302
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2715489
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2719236
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2961302
51	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3028665
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3102995
53	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3167949
54	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3175920
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3215434
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3239162
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3549551
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3576833
59	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3584895
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3603178
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3647257
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3787232
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3885500
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3888681
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4030872
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4091419
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4144778
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4192243
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4284309
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4288219
71	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4288297
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4310927
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4325084
74	F (uff)	65	25	95	2018-01-22 15:57:03		4375020
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4426689
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4464158
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4465920
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4466988
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4504703
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4531820
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4564883
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4641528
83	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4688072
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4692221
85	F (uff)	65	25	185	2017-06-01 10:27:49		4713749
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4753622
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4815513
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5050417
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5085890
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5165113
91	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5295448
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5337548
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5506968
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5538656
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5572655
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5582016
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5607862
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5622166
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5623852
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5635462

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