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SQL exercises

May 20, 00:11 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: 15091

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		2112
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		6406
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		15047
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	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		28106
10	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		38334
11	Vyazovetskov A.S. (alex_v)	11	221	264	2026-04-22 19:15:17		39176
12	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		69888
13	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		163115
14	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		238955
15	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		450659
16	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		572379
17	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		654533
18	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		684782
19	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		696970
20	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		844823
21	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		846131
22	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		868882
23	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		978420
24	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1090485
25	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1090485
26	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1119641
27	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1146162
28	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1159794
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1225836
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1229150
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1231539
32	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1264204
33	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1316467
34	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1341044
35	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1657621
36	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1761610
37	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1857775
38	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1896983
39	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2013893
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2160474
41	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2412231
42	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2540582
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2674936
44	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2717123
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2720870
46	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2962936
47	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3030299
48	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3104629
49	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3169583
50	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3177554
51	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3217069
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3240796
53	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3551185
54	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3578467
55	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3586529
56	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3604813
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3648891
58	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3788866
59	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3887134
60	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3890315
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4032506
62	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4093053
63	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4146412
64	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4193877
65	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4285944
66	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4289853
67	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4289932
68	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4312561
69	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4326718
70	F (uff)	65	25	95	2018-01-22 15:57:03		4376654
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4428323
72	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4465793
73	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4467554
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4468622
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4506337
76	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4533454
77	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4566517
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4643162
79	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4689707
80	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4693856
81	F (uff)	65	25	185	2017-06-01 10:27:49		4715384
82	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4755257
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4817148
84	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5052051
85	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5087524
86	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5166747
87	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5297083
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5339182
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5508603
90	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5540290
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5574289
92	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5583650
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5609497
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5623801
95	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5625487
96	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5637096
97	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5640667
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5643998
99	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5687684
100	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5688951

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