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SQL exercises

November 05, 05:37 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: 15240

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	124	184	2025-10-30 12:40:58		8217
2	Varenikov D.M. (Dmitriy Varenikov)	18	128	264	2025-10-27 23:48:59	2025-10-27 23:50:54	2
3	Varenikov D.M. (Dmitriy Varenikov)	18	128	308	2025-10-27 16:55:56	2025-10-27 23:31:04	395
4	Varenikov D.M. (Dmitriy Varenikov)	18	128	175	2022-01-21 11:28:01	2025-10-27 02:35:26	1979467
5	Sarkis'yan G. (gennadi_s)	19	124	183	2025-10-23 18:10:46	2025-10-24 17:33:49	1403
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		168745
7	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		290465
8	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		364521
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		372620
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		402868
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		415056
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		562909
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		564217
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		586968
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		614408
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		696506
17	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		808571
18	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		808571
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		837727
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		864248
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		877880
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		943922
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		947236
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		949626
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		982291
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1027466
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1034553
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1059130
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1304162
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1341717
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1375707
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1479696
33	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1575861
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1615069
35	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1731979
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1878560
37	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2130317
38	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2258669
39	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2393023
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2435209
41	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2438957
42	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2681023
43	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2748386
44	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2822716
45	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2887670
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2895640
47	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2935155
48	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2958882
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3269271
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3296554
51	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3304616
52	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3322899
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3366977
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3506952
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3605220
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3608401
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3750592
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3811139
59	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3864498
60	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3911963
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4004030
62	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4007939
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4008018
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4030647
65	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4044804
66	F (uff)	65	25	95	2018-01-22 15:57:03		4094741
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4146409
68	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4183879
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4185640
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4186708
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4224423
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4251540
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4284603
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4361248
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4407793
76	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4411942
77	F (uff)	65	25	185	2017-06-01 10:27:49		4433470
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4473343
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4535234
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4770137
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4805610
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4884834
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5015169
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5057268
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5226689
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5258376
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5292375
88	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5301737
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5327583
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5341887
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5343573
92	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5355182
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5358753
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5362084
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5405770
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5407037
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5415599
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5425329
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5433956
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5664395

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