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SQL exercises

May 16, 18:41 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: 15083

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	59	29	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
2	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		1756
3	Vyazovetskov A.S. (alex_v)	11	221	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
4	Vyazovetskov A.S. (alex_v)	11	221	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
5	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		10397
6	Vyazovetskov A.S. (alex_v)	11	221	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
7	Vyazovetskov A.S. (alex_v)	11	221	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
8	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
9	Vyazovetskov A.S. (alex_v)	11	221	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
10	Vyazovetskov A.S. (alex_v)	11	221	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
11	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
12	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		23456
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		33684
15	Vyazovetskov A.S. (alex_v)	11	221	264	2026-04-22 19:15:17		34526
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		65238
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		158465
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		234305
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		446009
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		567729
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		649883
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		680132
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		692320
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		840173
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		841481
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		864232
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		973770
28	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1085835
29	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1085835
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1114991
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1141512
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1155144
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1221186
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1224500
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1226889
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1259554
37	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1311817
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1336394
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1652971
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1756960
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1853125
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1892333
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2009243
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2155824
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2407580
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2535932
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2670286
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2712473
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2716220
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2958286
51	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3025649
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3099979
53	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3164933
54	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3172904
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3212419
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3236146
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3546535
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3573817
59	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3581879
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3600163
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3644241
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3784216
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3882484
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3885665
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4027856
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4088403
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4141762
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4189227
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4281294
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4285203
71	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4285282
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4307911
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4322068
74	F (uff)	65	25	95	2018-01-22 15:57:03		4372004
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4423673
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4461143
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4462904
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4463972
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4501687
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4528804
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4561867
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4638512
83	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4685057
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4689206
85	F (uff)	65	25	185	2017-06-01 10:27:49		4710734
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4750607
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4812498
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5047401
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5082874
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5162097
91	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5292433
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5334532
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5503953
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5535640
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5569639
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5579000
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5604847
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5619151
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5620837
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5632446

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