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SQL exercises

June 01, 22:00 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: 15104

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	9	232	231	2026-06-01 13:05:50		535
2	Makarov I.A. (_Bkmz_)	55	33	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
3	Vyazovetskov A.S. (alex_v)	9	232	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
4	Vyazovetskov A.S. (alex_v)	9	232	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
5	Vyazovetskov A.S. (alex_v)	9	232	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
6	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57		12939
7	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		13031
8	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		13057
9	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26	2026-05-23 19:54:13	265
10	Makarov I.A. (_Bkmz_)	55	33	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
11	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
12	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
13	Vyazovetskov A.S. (alex_v)	9	232	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
14	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		24995
15	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		33637
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		46696
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		56924
18	Vyazovetskov A.S. (alex_v)	9	232	264	2026-04-22 19:15:17		57766
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		88477
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		181705
21	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		257545
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		469248
23	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		590968
24	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		673123
25	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		703371
26	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		715559
27	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		863412
28	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		864720
29	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		887471
30	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		997010
31	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1109074
32	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1109075
33	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1138230
34	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1164751
35	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1178383
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1244425
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1247739
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1250129
39	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1282794
40	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1335056
41	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1359633
42	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1676211
43	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1780199
44	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1876364
45	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1915573
46	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2032482
47	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2179063
48	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2430820
49	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2559172
50	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2693526
51	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2735712
52	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2739460
53	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2981526
54	Samarin A. (not.yet.sql.master)	145	0	112	2020-08-14 15:12:10		3048889
55	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3123219
56	Samarin A. (not.yet.sql.master)	145	0	138	2020-05-09 21:48:04		3188173
57	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3196144
58	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3235658
59	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3259385
60	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3569775
61	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3597057
62	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3605119
63	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3623402
64	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3667481
65	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3807456
66	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3905724
67	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3908905
68	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4051095
69	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4111643
70	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4165002
71	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4212467
72	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4304533
73	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4308442
74	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4308521
75	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4331151
76	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4345307
77	F (uff)	65	25	95	2018-01-22 15:57:03		4395244
78	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4446912
79	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4484382
80	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4486143
81	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4487212
82	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4524927
83	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4552044
84	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4585106
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4661751
86	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4708296
87	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4712445
88	F (uff)	65	25	185	2017-06-01 10:27:49		4733973
89	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4773846
90	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4835737
91	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5070641
92	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5106114
93	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5185337
94	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5315672
95	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5357771
96	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5527192
97	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5558880
98	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5592879
99	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5602240
100	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5628086

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