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SQL exercises

October 15, 16:48 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: 15201

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	182	2025-10-13 15:25:57		2962
2	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
3	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		139175
4	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		260896
5	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		334952
6	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		343050
7	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		373298
8	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		385487
9	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		533340
10	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		534648
11	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		557398
12	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		584839
13	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		666937
14	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		779002
15	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		779002
16	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		808158
17	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		834679
18	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		848310
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		914353
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		917667
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		920056
22	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		952721
23	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		997897
24	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1004984
25	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1029560
26	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1274592
27	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1312148
28	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1346138
29	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1450127
30	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1546291
31	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1585500
32	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1702409
33	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1848991
34	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1963040
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2100747
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2229099
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2363453
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2405640
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2409387
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2651453
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2718816
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2793146
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2858100
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2866071
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2905586
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2929313
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3239702
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3266984
49	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3275046
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3293329
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3337408
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3477383
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3575651
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3578832
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3721023
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3781570
57	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3834929
58	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3882394
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3974461
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3978370
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3978448
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4001078
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4015235
64	F (uff)	65	25	95	2018-01-22 15:57:03		4065171
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4116840
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4154310
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4156071
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4157139
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4194854
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4221971
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4255034
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4331679
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4378223
74	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4382372
75	F (uff)	65	25	185	2017-06-01 10:27:49		4403900
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4443773
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4505664
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4740568
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4776041
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4855264
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4985600
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5027699
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5197119
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5228807
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5262806
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5272167
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5298014
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5312317
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5314003
90	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5325613
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5329184
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5332515
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5376200
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5377467
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5386029
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5395759
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5404386
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5634825
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5636452
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5684612

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