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SQL exercises

May 26, 00:58 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: 15098

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	9	226	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
2	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57		3037
3	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		3129
4	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		3155
5	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26	2026-05-23 19:54:13	265
6	Makarov I.A. (_Bkmz_)	56	32	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
7	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
8	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
9	Vyazovetskov A.S. (alex_v)	9	226	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
10	Makarov I.A. (_Bkmz_)	56	32	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		15093
12	Vyazovetskov A.S. (alex_v)	9	226	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
13	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		23734
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		36794
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		47021
16	Vyazovetskov A.S. (alex_v)	9	226	264	2026-04-22 19:15:17		47863
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		78575
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		171803
19	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		247642
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		459346
21	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		581066
22	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		663221
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		693469
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		705657
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		853510
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		854818
27	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		877569
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		987107
29	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1099172
30	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1099172
31	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1128328
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1154849
33	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1168481
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1234523
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1237837
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1240227
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1272892
38	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1325154
39	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1349731
40	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1666308
41	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1770297
42	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1866462
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1905670
44	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2022580
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2169161
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2420918
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2549270
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2683624
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2725810
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2729558
51	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2971624
52	Samarin A. (not.yet.sql.master)	145	0	112	2020-08-14 15:12:10		3038987
53	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3113317
54	Samarin A. (not.yet.sql.master)	145	0	138	2020-05-09 21:48:04		3178271
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3186241
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3225756
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3249483
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3559872
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3587155
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3595217
61	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3613500
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3657578
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3797553
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3895821
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3899002
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4041193
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4101740
68	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4155099
69	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4202564
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4294631
71	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4298540
72	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4298619
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4321248
74	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4335405
75	F (uff)	65	25	95	2018-01-22 15:57:03		4385342
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4437010
77	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4474480
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4476241
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4477309
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4515024
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4542141
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4575204
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4651849
84	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4698394
85	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4702543
86	F (uff)	65	25	185	2017-06-01 10:27:49		4724071
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4763944
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4825835
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5060738
90	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5096211
91	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5175435
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5305770
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5347869
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5517290
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5548977
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5582976
97	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5592338
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5618184
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5632488
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5634174

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