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SQL exercises

April 27, 19:04 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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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: 14575

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	53	34	152	2024-04-27 19:00:22		4
2	Slavutinskij V.V. (Vasilko)	425	0	5	2024-04-22 17:26:35		7298
3	Slavutinskij V.V. (Vasilko)	425	0	7	2024-04-22 17:26:21		7298
4	Komarov A.N. (Shveda Saulya)	53	34	151	2024-01-04 20:54:03	2024-04-16 01:11:59	147138
5	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		36454
6	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		62975
7	Latyntsev N.G. (aks_nsk)	51	37	253	2024-03-05 14:17:51		76607
8	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	305	2024-01-19 17:35:31		142649
9	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	306	2024-01-17 10:21:39		145963
10	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	71	2024-01-15 18:32:03		148353
11	Nikolaenko A.V. (Shadow77)	80	14	135	2023-12-24 02:07:10		181017
12	Komarov A.N. (Shveda Saulya)	53	34	150	2023-11-22 17:11:28		226193
13	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		233280
14	Rudikov E. (cubie)	130	0	138	2023-10-31 17:27:54		257857
15	Komarov A.N. (Shveda Saulya)	53	34	149	2023-05-14 13:36:07		502888
16	Zajtsev V.S. (Sleeping)	20	109	150	2023-04-18 11:40:16		540444
17	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		574434
18	Latyntsev N.G. (aks_nsk)	51	37	255	2023-01-12 16:01:39		678423
19	Koptel'tsev V. (selber)	25	95	237	2022-11-06 21:16:51		774588
20	Borisenkov D.V. (xuser)	94	9	173	2022-10-10 15:48:20		813796
21	Lukov D.R. (Gendalf)	231	0	90	2022-07-21 11:18:50		930706
22	Pavlov A.V. (Anton)	58	29	141	2022-04-10 16:17:39		1077287
23	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1191337
24	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1329044
25	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1457395
26	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1591749
27	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1633936
28	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1637683
29	Kozharinov A. (bubala)	196	0	10	2020-09-30 09:55:07		1879749
30	Samarin A. (not.yet.sql.master)	133	0	112	2020-08-14 15:12:10		1947112
31	Koptel'tsev V. (selber)	25	95	259	2020-06-24 00:22:07		2021442
32	Samarin A. (not.yet.sql.master)	133	0	138	2020-05-09 21:48:04		2086396
33	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2094367
34	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2133882
35	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2157609
36	Fokin A. (Vizitor )	42	52	217	2019-08-18 21:46:14		2467998
37	Bazavluk M. (DoNotLook)	92	9	141	2019-07-30 23:04:12		2495280
38	Romanov K.Yu. (kostik)	289	0	12	2019-07-25 08:42:10		2503342
39	Kordyum A. (alko58)	213	0	12	2019-07-12 15:58:52		2521626
40	Pavlov A.V. (Anton)	58	29	168	2019-06-12 01:20:21		2565704
41	Mal'tsev A.V. (Palkin)	108	8	218	2019-03-06 20:25:17		2705679
42	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		2803947
43	Grishunin M.F. (MikhailFG)	88	10	144	2018-12-26 09:36:27		2807128
44	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		2949319
45	Skorohod I. (Dracul4ik)	75	15	45	2018-08-07 14:38:23		3009866
46	Voevutskij S.A. (SergLK)	199	0	45	2018-07-01 13:19:14		3063225
47	Zyrin V.E. (Vezyr)	512	0	29	2018-05-29 14:14:19		3110690
48	Zajtsev V.S. (Sleeping)	20	109	226	2018-04-05 11:18:07		3188626
49	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3202757
50	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3206666
51	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3206745
52	Azbel' E.G. (enull)	74	15	148	2018-03-08 04:10:21		3229374
53	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3243531
54	F (uff)	63	25	95	2018-01-22 15:57:03		3293468
55	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3345136
56	Kordyum A. (alko58)	213	0	101	2017-11-21 18:18:43		3382606
57	Zajtsev V.S. (Sleeping)	20	109	190	2017-11-20 12:57:31		3384367
58	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3385435
59	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3423150
60	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3450267
61	Skorohod I. (Dracul4ik)	75	15	156	2017-09-12 19:34:33		3483330
62	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3559975
63	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3606520
64	Vorob'ev E.V. (Johnnymnemonic)	147	0	138	2017-06-16 09:15:49		3610669
65	F (uff)	63	25	185	2017-06-01 10:27:49		3632197
66	Skorohod I. (Dracul4ik)	75	15	146	2017-05-04 17:54:53		3672070
67	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		3733961
68	Skorohod I. (Dracul4ik)	75	15	144	2016-10-10 15:20:14		3968864
69	Sysoev A.V. (Sysa)	47	39	165	2016-09-16 00:07:24		4004337
70	Sysoev A.V. (Sysa)	47	39	168	2016-07-22 23:44:07		4083560
71	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4213896
72	Titovskij P.S. (kli3ma)	45	45	164	2016-03-25 05:49:30		4255995
73	Sivoglazov M.A. (Gaizenberg)	64	24	127	2015-11-28 14:08:52		4425416
74	Maslyaev V.S. (Velmont)	86	11	170	2015-11-06 14:01:20		4457103
75	Sivoglazov M.A. (Gaizenberg)	64	24	261	2015-10-13 23:22:26		4491102
76	Fomichev A.V. (Fomichev)	187	0	101	2015-10-07 11:21:04		4500463
77	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4526310
78	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4540614
79	Frolov (dr.shtopor)	78	14	141	2015-09-08 10:04:55		4542300
80	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4553909
81	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4557480
82	Halushka B. (halushka)	44	46	211	2015-08-26 13:33:28		4560811
83	Maslyaev V.S. (Velmont)	86	11	140	2015-07-27 05:27:50		4604497
84	Khromulyak O.M. (ChOleg)	117	5	150	2015-07-26 08:20:51		4605764
85	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4614326
86	Halushka B. (halushka)	44	46	143	2015-07-13 15:28:55		4624056
87	Halushka B. (halushka)	44	46	204	2015-07-07 15:42:03		4632683
88	Skorohod I. (Dracul4ik)	75	15	256	2015-01-28 15:03:11		4863121
89	Skorohod I. (Dracul4ik)	75	15	252	2015-01-27 11:56:41		4864748
90	Sysoev A.V. (Sysa)	47	39	143	2014-12-25 01:16:19		4912908
91	Grishin (alvigr)	76	15	185	2014-12-05 11:56:29		4941068
92	Fajnberg M.L. (burnall)	70	21	122	2014-10-31 12:46:14		4991418
93	Kabanets E.G. (azkaban)	90	9	209	2014-09-27 01:00:23		5041084
94	Sivoglazov M.A. (Gaizenberg)	64	24	178	2014-08-26 23:17:37		5085827
95	Perfilov B.V. (B o r i s)	97	9	29	2014-02-23 19:20:39		5351024
96	Utyonkov M.N. (=Maxim=)	46	42	255	2014-02-03 12:39:35		5380225
97	Shaymardanov M.M. (xLiSPirit)	38	62	147	2013-12-11 13:22:21		5457942
98	Martynyuk (Wiedzmen)	55	32	135	2013-11-26 20:27:27		5479117
99	Chebykin D. (GriGrim)	37	62	255	2013-11-07 15:23:46		5506781
100	Titovskij P.S. (kli3ma)	45	45	203	2013-10-31 10:01:45		5517183

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