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SQL exercises

January 22, 07:32 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: 15350

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Petrov Y. (YuriPetrov)	32	78	198	2026-01-17 16:11:10	2026-01-20 01:16:01	3425
2	Sarkis'yan G. (gennadi_s)	16	142	191	2026-01-19 15:25:23		3847
3	Sarkis'yan G. (gennadi_s)	16	142	190	2026-01-11 13:55:22	2026-01-12 11:21:39	1286
4	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		69476
5	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		281179
6	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		402900
7	Fomichev A.V. (Fomichev)	198	0	7	2025-02-25 02:16:37		476956
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		485054
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		515302
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		527491
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		675344
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		676652
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		699402
14	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		726842
15	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		808941
16	Slavutinskij V.V. (Vasilko)	449	0	5	2024-04-22 17:26:35		921006
17	Slavutinskij V.V. (Vasilko)	449	0	7	2024-04-22 17:26:21		921006
18	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		950162
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		976683
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		990314
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1056357
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1059671
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1062060
24	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1094725
25	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1139901
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1146988
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1171564
28	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1416596
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1454152
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1488142
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1592131
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1688295
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1727504
34	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1844413
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1990995
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2242751
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2371103
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2505457
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2547644
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2551391
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2793457
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2860820
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2935150
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3000104
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3008075
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3047589
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3071317
48	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3381706
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3408988
50	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3417050
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3435333
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3479412
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3619387
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3717655
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3720836
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3863027
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3923574
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3976933
59	Zyrin V.E. (Vezyr)	541	0	29	2018-05-29 14:14:19		4024398
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4116465
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4120374
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4120452
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4143082
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4157239
65	F (uff)	65	25	95	2018-01-22 15:57:03		4207175
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4258844
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4296314
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4298075
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4299143
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4336858
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4363975
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4397038
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4473683
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4520227
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4524376
76	F (uff)	65	25	185	2017-06-01 10:27:49		4545904
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4585777
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4647668
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4882572
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4918045
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4997268
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5127604
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5169703
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5339123
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5370811
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5404810
87	Fomichev A.V. (Fomichev)	198	0	101	2015-10-07 11:21:04		5414171
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5440017
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5454321
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5456007
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5467617
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5471188
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5474519
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5518204
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5519471
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5528033
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5537763
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5546390
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5776829
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5778456

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