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SQL exercises

September 10, 20:30 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: 15195

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	187	207	2026-09-08 14:40:13	2026-09-10 12:22:30	2742
2	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		5060
3	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20		6141
4	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
5	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
6	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		19129
7	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		29638
8	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		59457
9	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		62349
10	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		71058
11	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		73826
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		123952
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		158381
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		192046
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		202274
16	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		203115
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		233827
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		327055
19	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		402894
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		614598
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		848721
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		860909
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1008762
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1010070
25	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1032821
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1142359
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1254424
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1254424
29	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1283580
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1310101
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1323733
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1389775
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1393089
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1395479
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1428144
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1480406
37	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1504983
38	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1821560
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1925549
40	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2021714
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2060922
42	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2177832
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2324413
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2576170
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2704522
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2838876
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2881062
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2884810
49	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3126876
50	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3194239
51	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3268569
52	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3333523
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3341493
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3381008
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3404735
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3715125
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3742407
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3750469
59	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3768752
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3812830
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3952805
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4051073
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4054254
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4196445
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4256992
66	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4310352
67	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4357816
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4449883
69	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4453792
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4453871
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4476500
72	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4490657
73	F (uff)	65	25	95	2018-01-22 15:57:03		4540594
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4592262
75	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4629732
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4631493
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4632561
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4670276
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4697393
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4730456
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4807101
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4853646
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4857795
84	F (uff)	65	25	185	2017-06-01 10:27:49		4879323
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4919196
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4981087
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5215991
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5251463
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5330687
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5461022
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5503121
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5672542
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5704229
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5738228
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5747590
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5773436
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5787740
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5789426
99	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5801035
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5804606

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