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SQL exercises

May 07, 17:57 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: 15098

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	214	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
2	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
3	Vyazovetskov A.S. (alex_v)	11	214	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
4	Vyazovetskov A.S. (alex_v)	11	214	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
5	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
6	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
7	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
8	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		10452
9	Sarkis'yan G. (gennadi_s)	15	170	200	2026-04-27 16:55:45	2026-04-29 19:00:00	3004
10	Polyakov V.M. (rock_4)	76	15	152	2026-04-16 13:35:42	2026-04-29 17:07:29	18932
11	Vyazovetskov A.S. (alex_v)	11	214	251	2026-04-24 09:27:23	2026-04-24 19:57:36	630
12	Sarkis'yan G. (gennadi_s)	15	170	199	2026-04-23 12:02:01	2026-04-24 15:25:39	1644
13	Koptel'tsev V. (selber)	19	129	212	2026-04-23 19:44:40	2026-04-24 09:01:21	797
14	Komarov A.N. (Shveda Saulya)	37	65	159	2026-04-10 16:59:02	2026-04-24 00:17:20	19158
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		20680
16	Vyazovetskov A.S. (alex_v)	11	214	264	2026-04-22 19:15:17		21522
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		52234
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		145461
19	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		221301
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		433004
21	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		554725
22	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		636879
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		667127
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		679316
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		827169
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		828477
27	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		851227
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		960766
29	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1072831
30	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1072831
31	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1101987
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1128508
33	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1142139
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1208182
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1211496
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1213885
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1246550
38	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1298813
39	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1323389
40	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1639967
41	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1743956
42	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1840120
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1879329
44	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		1996238
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2142820
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2394576
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2522928
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2657282
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2699469
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2703216
51	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2945282
52	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3012645
53	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3086975
54	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3151929
55	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3159900
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3199414
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3223142
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3533531
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3560813
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3568875
61	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3587158
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3631237
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3771212
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3869480
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3872661
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4014852
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4075399
68	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4128758
69	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4176223
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4268290
71	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4272199
72	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4272277
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4294907
74	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4309064
75	F (uff)	65	25	95	2018-01-22 15:57:03		4359000
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4410669
77	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4448139
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4449900
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4450968
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4488683
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4515800
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4548863
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4625508
84	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4672052
85	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4676201
86	F (uff)	65	25	185	2017-06-01 10:27:49		4697729
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4737602
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4799493
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5034397
90	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5069870
91	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5149093
92	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5279429
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5321528
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5490948
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5522636
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5556635
97	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5565996
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5591842
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5606146
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5607832

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