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SQL exercises

February 18, 21:07 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: 15418

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	41	56	150	2023-11-22 17:11:28	2026-02-13 01:49:19	1171238
2	Sarkis'yan G. (gennadi_s)	16	149	194	2026-02-10 15:42:58		11844
3	Sarkis'yan G. (gennadi_s)	16	149	193	2026-02-02 14:48:13	2026-02-06 14:23:09	5735
4	Komarov A.N. (Shveda Saulya)	41	56	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
5	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		33331
6	Lukov D.R. (Gendalf)	244	0	32	2025-12-05 01:36:21		109171
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		320874
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		442595
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		524749
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		554997
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		567186
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		715039
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		716347
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		739097
15	Komarov A.N. (Shveda Saulya)	41	56	157	2024-09-04 13:29:47		766538
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		848636
17	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		960701
18	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		960701
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		989857
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		1016378
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1030009
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1096052
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1099366
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1101755
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1134420
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1186683
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1211259
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1493847
29	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1527837
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1631826
31	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1727990
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1767199
33	Lukov D.R. (Gendalf)	244	0	90	2022-07-21 11:18:50		1884108
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2030690
35	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2282446
36	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2410798
37	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2545152
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2587339
39	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2591086
40	Kozharinov A. (bubala)	209	0	10	2020-09-30 09:55:07		2833152
41	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2900515
42	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2974845
43	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3039799
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3047770
45	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3087284
46	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3111012
47	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3421401
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3448683
49	Romanov K.Yu. (kostik)	309	0	12	2019-07-25 08:42:10		3456745
50	Kordyum A. (alko58)	227	0	12	2019-07-12 15:58:52		3475028
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3519107
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3659082
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3757350
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3760531
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3902722
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3963269
57	Voevutskij S.A. (SergLK)	215	0	45	2018-07-01 13:19:14		4016628
58	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4064093
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4156160
60	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4160069
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4160147
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4182777
63	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4196934
64	F (uff)	65	25	95	2018-01-22 15:57:03		4246870
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4298539
66	Kordyum A. (alko58)	227	0	101	2017-11-21 18:18:43		4336009
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4337770
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4338838
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4376553
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4403670
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4436733
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4513378
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4559922
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4564071
75	F (uff)	65	25	185	2017-06-01 10:27:49		4585599
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4625472
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4687363
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4922267
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4957740
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5036963
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5167299
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5209398
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5378818
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5410506
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5444505
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5453866
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5479712
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5494016
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5495702
90	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5507312
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5510883
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5514214
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5557899
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5559166
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5567728
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5577458
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5586085
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5816524
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5818151
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5866311

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