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SQL exercises

October 07, 10:49 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: 13885

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Safronov P.A. (Paulus73)	135	0	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
2	Filippkin D.V. (_dimon_)	2	262	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
3	Safronov P.A. (Paulus73)	135	0	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
4	Vinogradova S.M. (Tigra1)	124	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
5	Vinogradova S.M. (Tigra1)	124	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
6	Filippkin D.V. (_dimon_)	2	262	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
7	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		10196
8	Vinogradova S.M. (Tigra1)	124	4	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
9	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
10	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
11	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		43359
12	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		57428
13	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		67937
14	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		97756
15	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		100648
16	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		109357
17	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		112125
18	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		162251
19	Chernov D.V. (Kursist)	3	262	241	2026-05-23 20:49:50		196680
20	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		230345
21	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		240573
22	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		241415
23	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		272126
24	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		365354
25	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		441194
26	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		652897
27	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		887020
28	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		899208
29	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1047061
30	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1048369
31	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1071120
32	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1180658
33	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1292723
34	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1292724
35	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1321879
36	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1348400
37	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1362032
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1428074
39	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1431388
40	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1433778
41	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1466443
42	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1518705
43	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1543282
44	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1859859
45	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1963848
46	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2060013
47	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2099222
48	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2216131
49	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2362712
50	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2614469
51	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2742821
52	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2877175
53	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2919361
54	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2923109
55	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3165175
56	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3232538
57	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3306868
58	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3371822
59	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3379792
60	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3419307
61	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3443034
62	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3753424
63	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3780706
64	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3788768
65	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3807051
66	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3851130
67	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3991105
68	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4089372
69	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4092553
70	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4234744
71	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4295291
72	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4348651
73	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4396116
74	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4488182
75	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4492091
76	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4492170
77	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4514800
78	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4528956
79	F (uff)	65	25	95	2018-01-22 15:57:03		4578893
80	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4630561
81	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4668031
82	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4669792
83	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4670861
84	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4708576
85	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4735692
86	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4768755
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4845400
88	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4891945
89	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4896094
90	F (uff)	65	25	185	2017-06-01 10:27:49		4917622
91	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4957495
92	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5019386
93	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5254290
94	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5289762
95	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5368986
96	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5499321
97	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5541420
98	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5710841
99	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5742529
100	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5776527

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