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SQL exercises

April 27, 15:51 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: 14575

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		7105
2	Slavutinskij V.V. (Vasilko)	425	0	7	2024-04-22 17:26:21		7106
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		36261
5	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		62782
6	Latyntsev N.G. (aks_nsk)	51	37	253	2024-03-05 14:17:51		76414
7	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	305	2024-01-19 17:35:31		142456
8	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	306	2024-01-17 10:21:39		145770
9	Kurbanoff N.I. (Nariman Kurbanoff)	96	9	71	2024-01-15 18:32:03		148160
10	Nikolaenko A.V. (Shadow77)	80	14	135	2023-12-24 02:07:10		180825
11	Komarov A.N. (Shveda Saulya)	53	34	150	2023-11-22 17:11:28		226000
12	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		233087
13	Rudikov E. (cubie)	130	0	138	2023-10-31 17:27:54		257664
14	Komarov A.N. (Shveda Saulya)	53	34	149	2023-05-14 13:36:07		502696
15	Zajtsev V.S. (Sleeping)	20	109	150	2023-04-18 11:40:16		540252
16	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		574241
17	Latyntsev N.G. (aks_nsk)	51	37	255	2023-01-12 16:01:39		678230
18	Koptel'tsev V. (selber)	25	95	237	2022-11-06 21:16:51		774395
19	Borisenkov D.V. (xuser)	94	9	173	2022-10-10 15:48:20		813604
20	Lukov D.R. (Gendalf)	231	0	90	2022-07-21 11:18:50		930513
21	Pavlov A.V. (Anton)	58	29	141	2022-04-10 16:17:39		1077094
22	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1191144
23	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1328851
24	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1457203
25	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1591557
26	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1633743
27	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1637491
28	Kozharinov A. (bubala)	196	0	10	2020-09-30 09:55:07		1879557
29	Samarin A. (not.yet.sql.master)	133	0	112	2020-08-14 15:12:10		1946920
30	Koptel'tsev V. (selber)	25	95	259	2020-06-24 00:22:07		2021250
31	Samarin A. (not.yet.sql.master)	133	0	138	2020-05-09 21:48:04		2086204
32	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2094175
33	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2133689
34	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2157416
35	Fokin A. (Vizitor )	42	52	217	2019-08-18 21:46:14		2467806
36	Bazavluk M. (DoNotLook)	92	9	141	2019-07-30 23:04:12		2495088
37	Romanov K.Yu. (kostik)	289	0	12	2019-07-25 08:42:10		2503150
38	Kordyum A. (alko58)	213	0	12	2019-07-12 15:58:52		2521433
39	Pavlov A.V. (Anton)	58	29	168	2019-06-12 01:20:21		2565512
40	Mal'tsev A.V. (Palkin)	108	8	218	2019-03-06 20:25:17		2705487
41	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		2803755
42	Grishunin M.F. (MikhailFG)	88	10	144	2018-12-26 09:36:27		2806935
43	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		2949126
44	Skorohod I. (Dracul4ik)	75	15	45	2018-08-07 14:38:23		3009674
45	Voevutskij S.A. (SergLK)	199	0	45	2018-07-01 13:19:14		3063033
46	Zyrin V.E. (Vezyr)	512	0	29	2018-05-29 14:14:19		3110498
47	Zajtsev V.S. (Sleeping)	20	109	226	2018-04-05 11:18:07		3188434
48	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3202564
49	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3206473
50	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3206552
51	Azbel' E.G. (enull)	74	15	148	2018-03-08 04:10:21		3229182
52	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3243338
53	F (uff)	63	25	95	2018-01-22 15:57:03		3293275
54	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3344943
55	Kordyum A. (alko58)	213	0	101	2017-11-21 18:18:43		3382413
56	Zajtsev V.S. (Sleeping)	20	109	190	2017-11-20 12:57:31		3384174
57	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3385243
58	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3422958
59	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3450074
60	Skorohod I. (Dracul4ik)	75	15	156	2017-09-12 19:34:33		3483137
61	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3559782
62	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3606327
63	Vorob'ev E.V. (Johnnymnemonic)	147	0	138	2017-06-16 09:15:49		3610476
64	F (uff)	63	25	185	2017-06-01 10:27:49		3632004
65	Skorohod I. (Dracul4ik)	75	15	146	2017-05-04 17:54:53		3671877
66	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		3733768
67	Skorohod I. (Dracul4ik)	75	15	144	2016-10-10 15:20:14		3968672
68	Sysoev A.V. (Sysa)	47	39	165	2016-09-16 00:07:24		4004145
69	Sysoev A.V. (Sysa)	47	39	168	2016-07-22 23:44:07		4083368
70	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4213703
71	Titovskij P.S. (kli3ma)	45	45	164	2016-03-25 05:49:30		4255802
72	Sivoglazov M.A. (Gaizenberg)	64	24	127	2015-11-28 14:08:52		4425223
73	Maslyaev V.S. (Velmont)	86	11	170	2015-11-06 14:01:20		4456911
74	Sivoglazov M.A. (Gaizenberg)	64	24	261	2015-10-13 23:22:26		4490909
75	Fomichev A.V. (Fomichev)	186	0	101	2015-10-07 11:21:04		4500271
76	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4526117
77	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4540421
78	Frolov (dr.shtopor)	78	14	141	2015-09-08 10:04:55		4542107
79	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4553716
80	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4557287
81	Halushka B. (halushka)	44	46	211	2015-08-26 13:33:28		4560618
82	Maslyaev V.S. (Velmont)	86	11	140	2015-07-27 05:27:50		4604304
83	Khromulyak O.M. (ChOleg)	117	5	150	2015-07-26 08:20:51		4605571
84	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4614133
85	Halushka B. (halushka)	44	46	143	2015-07-13 15:28:55		4623863
86	Halushka B. (halushka)	44	46	204	2015-07-07 15:42:03		4632490
87	Skorohod I. (Dracul4ik)	75	15	256	2015-01-28 15:03:11		4862929
88	Skorohod I. (Dracul4ik)	75	15	252	2015-01-27 11:56:41		4864555
89	Sysoev A.V. (Sysa)	47	39	143	2014-12-25 01:16:19		4912716
90	Grishin (alvigr)	76	15	185	2014-12-05 11:56:29		4940875
91	Fajnberg M.L. (burnall)	70	21	122	2014-10-31 12:46:14		4991226
92	Kabanets E.G. (azkaban)	90	9	209	2014-09-27 01:00:23		5040892
93	Sivoglazov M.A. (Gaizenberg)	64	24	178	2014-08-26 23:17:37		5085634
94	Perfilov B.V. (B o r i s)	97	9	29	2014-02-23 19:20:39		5350831
95	Utyonkov M.N. (=Maxim=)	46	42	255	2014-02-03 12:39:35		5380032
96	Shaymardanov M.M. (xLiSPirit)	38	62	147	2013-12-11 13:22:21		5457750
97	Martynyuk (Wiedzmen)	55	32	135	2013-11-26 20:27:27		5478924
98	Chebykin D. (GriGrim)	37	62	255	2013-11-07 15:23:46		5506588
99	Titovskij P.S. (kli3ma)	45	45	203	2013-10-31 10:01:45		5516990
100	Martynyuk (Wiedzmen)	55	32	185	2013-10-22 15:41:24		5529611

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