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SQL exercises

October 11, 20:15 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: 15173

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		133622
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		255342
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		329398
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		337497
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		367745
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		379934
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		527786
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		529094
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		551845
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		579285
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		661384
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		773449
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		773449
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		802605
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		829125
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		842757
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		908800
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		912113
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		914503
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		947168
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		992344
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		999430
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1024007
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1269039
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1306595
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1340585
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1444573
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1540738
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1579947
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1696856
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1843437
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1957487
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2095194
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2223546
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2357900
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2400086
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2403834
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2645900
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2713263
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2787593
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2852547
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2860518
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2900032
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2923760
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3234149
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3261431
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3269493
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3287776
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3331855
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3471830
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3570098
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3573279
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3715470
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3776017
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3829376
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3876841
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3968907
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3972817
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3972895
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3995525
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4009682
63	F (uff)	65	25	95	2018-01-22 15:57:03		4059618
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4111286
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4148756
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4150518
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4151586
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4189301
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4216418
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4249481
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4326125
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4372670
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4376819
74	F (uff)	65	25	185	2017-06-01 10:27:49		4398347
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4438220
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4500111
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4735015
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4770488
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4849711
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4980046
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5022146
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5191566
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5223254
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5257253
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5266614
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5292460
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5306764
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5308450
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5320059
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5323631
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5326962
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5370647
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5371914
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5380476
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5390206
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5398833
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5629272
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5630898
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5679059
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5707219

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