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SQL exercises

October 11, 17:55 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: 15172

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		133483
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		255203
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		329259
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		337358
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		367606
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		379794
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		527647
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		528955
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		551706
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		579146
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		661245
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		773309
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		773310
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		802465
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		828986
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		842618
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		908660
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		911974
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		914364
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		947029
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		992204
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		999291
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1023868
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1268900
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1306456
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1340445
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1444434
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1540599
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1579808
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1696717
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1843298
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1957348
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2095055
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2223407
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2357761
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2399947
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2403695
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2645761
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2713124
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2787454
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2852408
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2860378
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2899893
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2923620
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3234010
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3261292
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3269354
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3287637
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3331716
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3471691
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3569958
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3573139
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3715330
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3775878
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3829237
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3876702
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3968768
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3972677
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3972756
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3995386
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4009542
63	F (uff)	65	25	95	2018-01-22 15:57:03		4059479
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4111147
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4148617
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4150378
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4151447
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4189162
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4216278
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4249341
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4325986
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4372531
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4376680
74	F (uff)	65	25	185	2017-06-01 10:27:49		4398208
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4438081
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4499972
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4734876
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4770349
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4849572
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4979907
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5022006
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5191427
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5223115
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5257113
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5266475
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5292321
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5306625
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5308311
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5319920
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5323491
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5326822
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5370508
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5371775
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5380337
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5390067
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5398694
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5629133
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5630759
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5678920
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5707079

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