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SQL exercises

November 15, 08:03 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: 13929

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Safronov P.A. (Paulus73)	101	8	235	2026-11-10 10:18:05	2026-11-12 02:05:51	2388
2	Sarkis'yan G. (gennadi_s)	13	195	210	2026-11-03 14:52:53	2026-11-09 18:02:46	8830
3	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15	2026-11-09 17:14:09	30132
4	Kuritsyn V.N. (ValNick)	137	0	53	2026-11-04 16:28:05	2026-11-05 02:38:55	611
5	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59	2026-11-03 11:42:59	49129
6	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		51302
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		99352
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		113422
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		123930
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		153750
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		156642
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		165350
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		168118
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		218244
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		252674
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		286338
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		296566
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		297408
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		328120
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		421347
21	Lukov D.R. (Gendalf)	249	0	32	2025-12-05 01:36:21		497187
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		708890
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		943013
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		955202
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1103055
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1104363
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1127113
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1236652
29	Slavutinskij V.V. (Vasilko)	460	0	5	2024-04-22 17:26:35		1348717
30	Slavutinskij V.V. (Vasilko)	460	0	7	2024-04-22 17:26:21		1348717
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1377873
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1404394
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1418026
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1484068
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1487382
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1489771
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1522436
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1574699
39	Rudikov E. (cubie)	138	0	138	2023-10-31 17:27:54		1599275
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1915853
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		2019842
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2116007
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2155215
44	Lukov D.R. (Gendalf)	249	0	90	2022-07-21 11:18:50		2272125
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2418706
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2670462
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2798814
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2933168
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2975355
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2979102
51	Kozharinov A. (bubala)	216	0	10	2020-09-30 09:55:07		3221168
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3288531
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3362861
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3427815
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3435786
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3475301
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3499028
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3809417
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3836699
60	Romanov K.Yu. (kostik)	314	0	12	2019-07-25 08:42:10		3844761
61	Kordyum A. (alko58)	234	0	12	2019-07-12 15:58:52		3863045
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3907123
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		4047098
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4145366
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4148547
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4290738
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4351285
68	Voevutskij S.A. (SergLK)	223	0	45	2018-07-01 13:19:14		4404644
69	Zyrin V.E. (Vezyr)	556	0	29	2018-05-29 14:14:19		4452109
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4544176
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4548085
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4548164
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4570793
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4584950
75	F (uff)	66	23	95	2018-01-22 15:57:03		4634886
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4686555
77	Kordyum A. (alko58)	234	0	101	2017-11-21 18:18:43		4724025
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4725786
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4726854
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4764569
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4791686
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4824749
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4901394
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4947938
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4952088
86	F (uff)	66	23	185	2017-06-01 10:27:49		4973616
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		5013488
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5075380
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5310283
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5345756
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5424979
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5555315
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5597414
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5766835
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5798522
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5832521
97	Fomichev A.V. (Fomichev)	201	0	101	2015-10-07 11:21:04		5841882
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5867729
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5882033
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5883718

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