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SQL exercises

April 27, 11:42 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: 14573

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Slavutinskij V.V. (Vasilko)	425	0	5	2024-04-22 17:26:35		6856
2	Slavutinskij V.V. (Vasilko)	425	0	7	2024-04-22 17:26:21		6856
3	Komarov A.N. (Shveda Saulya)	53	34	151	2024-01-04 20:54:03	2024-04-16 01:11:59	147138
4	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		36012
5	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		62533
6	Latyntsev N.G. (aks_nsk)	51	37	253	2024-03-05 14:17:51		76165
7	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	305	2024-01-19 17:35:31		142207
8	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	306	2024-01-17 10:21:39		145521
9	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	71	2024-01-15 18:32:03		147910
10	Nikolaenko A.V. (Shadow77)	80	14	135	2023-12-24 02:07:10		180575
11	Komarov A.N. (Shveda Saulya)	53	34	150	2023-11-22 17:11:28		225751
12	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		232838
13	Rudikov E. (cubie)	130	0	138	2023-10-31 17:27:54		257415
14	Komarov A.N. (Shveda Saulya)	53	34	149	2023-05-14 13:36:07		502446
15	Zajtsev V.S. (Sleeping)	20	109	150	2023-04-18 11:40:16		540002
16	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		573992
17	Latyntsev N.G. (aks_nsk)	51	37	255	2023-01-12 16:01:39		677981
18	Koptel'tsev V. (selber)	25	95	237	2022-11-06 21:16:51		774146
19	Borisenkov D.V. (xuser)	94	9	173	2022-10-10 15:48:20		813354
20	Lukov D.R. (Gendalf)	231	0	90	2022-07-21 11:18:50		930264
21	Pavlov A.V. (Anton)	58	29	141	2022-04-10 16:17:39		1076845
22	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1190894
23	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1328601
24	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1456953
25	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1591307
26	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1633494
27	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1637241
28	Kozharinov A. (bubala)	196	0	10	2020-09-30 09:55:07		1879307
29	Samarin A. (not.yet.sql.master)	133	0	112	2020-08-14 15:12:10		1946670
30	Koptel'tsev V. (selber)	25	95	259	2020-06-24 00:22:07		2021000
31	Samarin A. (not.yet.sql.master)	133	0	138	2020-05-09 21:48:04		2085954
32	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2093925
33	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2133440
34	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2157167
35	Fokin A. (Vizitor )	42	52	217	2019-08-18 21:46:14		2467556
36	Bazavluk M. (DoNotLook)	92	9	141	2019-07-30 23:04:12		2494838
37	Romanov K.Yu. (kostik)	289	0	12	2019-07-25 08:42:10		2502900
38	Kordyum A. (alko58)	213	0	12	2019-07-12 15:58:52		2521184
39	Pavlov A.V. (Anton)	58	29	168	2019-06-12 01:20:21		2565262
40	Mal'tsev A.V. (Palkin)	108	8	218	2019-03-06 20:25:17		2705237
41	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		2803505
42	Grishunin M.F. (MikhailFG)	88	10	144	2018-12-26 09:36:27		2806686
43	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		2948877
44	Skorohod I. (Dracul4ik)	75	15	45	2018-08-07 14:38:23		3009424
45	Voevutskij S.A. (SergLK)	199	0	45	2018-07-01 13:19:14		3062783
46	Zyrin V.E. (Vezyr)	512	0	29	2018-05-29 14:14:19		3110248
47	Zajtsev V.S. (Sleeping)	20	109	226	2018-04-05 11:18:07		3188184
48	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3202315
49	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3206224
50	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3206303
51	Azbel' E.G. (enull)	74	15	148	2018-03-08 04:10:21		3228932
52	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3243089
53	F (uff)	63	25	95	2018-01-22 15:57:03		3293025
54	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3344694
55	Kordyum A. (alko58)	213	0	101	2017-11-21 18:18:43		3382164
56	Zajtsev V.S. (Sleeping)	20	109	190	2017-11-20 12:57:31		3383925
57	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3384993
58	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3422708
59	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3449825
60	Skorohod I. (Dracul4ik)	75	15	156	2017-09-12 19:34:33		3482888
61	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3559533
62	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3606078
63	Vorob'ev E.V. (Johnnymnemonic)	147	0	138	2017-06-16 09:15:49		3610227
64	F (uff)	63	25	185	2017-06-01 10:27:49		3631755
65	Skorohod I. (Dracul4ik)	75	15	146	2017-05-04 17:54:53		3671628
66	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		3733519
67	Skorohod I. (Dracul4ik)	75	15	144	2016-10-10 15:20:14		3968422
68	Sysoev A.V. (Sysa)	47	39	165	2016-09-16 00:07:24		4003895
69	Sysoev A.V. (Sysa)	47	39	168	2016-07-22 23:44:07		4083118
70	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4213454
71	Titovskij P.S. (kli3ma)	45	45	164	2016-03-25 05:49:30		4255553
72	Sivoglazov M.A. (Gaizenberg)	64	24	127	2015-11-28 14:08:52		4424974
73	Maslyaev V.S. (Velmont)	86	11	170	2015-11-06 14:01:20		4456661
74	Sivoglazov M.A. (Gaizenberg)	64	24	261	2015-10-13 23:22:26		4490660
75	Fomichev A.V. (Fomichev)	186	0	101	2015-10-07 11:21:04		4500021
76	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4525868
77	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4540172
78	Frolov (dr.shtopor)	78	14	141	2015-09-08 10:04:55		4541858
79	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4553467
80	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4557038
81	Halushka B. (halushka)	44	46	211	2015-08-26 13:33:28		4560369
82	Maslyaev V.S. (Velmont)	86	11	140	2015-07-27 05:27:50		4604055
83	Khromulyak O.M. (ChOleg)	117	5	150	2015-07-26 08:20:51		4605322
84	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4613883
85	Halushka B. (halushka)	44	46	143	2015-07-13 15:28:55		4623614
86	Halushka B. (halushka)	44	46	204	2015-07-07 15:42:03		4632240
87	Skorohod I. (Dracul4ik)	75	15	256	2015-01-28 15:03:11		4862679
88	Skorohod I. (Dracul4ik)	75	15	252	2015-01-27 11:56:41		4864306
89	Sysoev A.V. (Sysa)	47	39	143	2014-12-25 01:16:19		4912466
90	Grishin (alvigr)	76	15	185	2014-12-05 11:56:29		4940626
91	Fajnberg M.L. (burnall)	70	21	122	2014-10-31 12:46:14		4990976
92	Kabanets E.G. (azkaban)	90	9	209	2014-09-27 01:00:23		5040642
93	Sivoglazov M.A. (Gaizenberg)	64	24	178	2014-08-26 23:17:37		5085385
94	Perfilov B.V. (B o r i s)	97	9	29	2014-02-23 19:20:39		5350582
95	Utyonkov M.N. (=Maxim=)	46	42	255	2014-02-03 12:39:35		5379783
96	Shaymardanov M.M. (xLiSPirit)	38	62	147	2013-12-11 13:22:21		5457500
97	Martynyuk (Wiedzmen)	55	32	135	2013-11-26 20:27:27		5478675
98	Chebykin D. (GriGrim)	37	62	255	2013-11-07 15:23:46		5506339
99	Titovskij P.S. (kli3ma)	45	45	203	2013-10-31 10:01:45		5516741
100	Martynyuk (Wiedzmen)	55	32	185	2013-10-22 15:41:24		5529361

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