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SQL exercises

February 02, 04:43 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: 15354

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	147	192	2026-01-29 14:47:50	2026-01-29 16:40:41	113
2	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		9307
3	Sarkis'yan G. (gennadi_s)	16	147	191	2026-01-19 15:25:23	2026-01-25 17:31:40	8766
4	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37	2026-01-24 00:54:53	479438
5	Petrov Y. (YuriPetrov)	32	78	198	2026-01-17 16:11:10	2026-01-20 01:16:01	3425
6	Lukov D.R. (Gendalf)	243	0	32	2025-12-05 01:36:21		85147
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		296850
8	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		418571
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		500725
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		530973
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		543162
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		691015
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		692323
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		715073
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		742514
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		824612
17	Slavutinskij V.V. (Vasilko)	450	0	5	2024-04-22 17:26:35		936677
18	Slavutinskij V.V. (Vasilko)	450	0	7	2024-04-22 17:26:21		936677
19	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		965833
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		992354
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1005985
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1072028
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1075342
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1077731
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1110396
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1155572
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1162659
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1187235
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1432267
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1469823
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1503813
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1607802
33	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1703966
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1743175
35	Lukov D.R. (Gendalf)	243	0	90	2022-07-21 11:18:50		1860084
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2006666
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2258422
38	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2386774
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2521128
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2563315
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2567062
42	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2809128
43	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2876491
44	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2950821
45	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3015775
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3023746
47	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3063261
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3086988
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3397377
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3424659
51	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3432721
52	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3451004
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3495083
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3635058
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3733326
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3736507
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3878698
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3939245
59	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3992604
60	Zyrin V.E. (Vezyr)	542	0	29	2018-05-29 14:14:19		4040069
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4132136
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4136045
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4136123
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4158753
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4172910
66	F (uff)	65	25	95	2018-01-22 15:57:03		4222846
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4274515
68	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4311985
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4313746
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4314814
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4352529
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4379646
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4412709
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4489354
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4535898
76	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4540047
77	F (uff)	65	25	185	2017-06-01 10:27:49		4561575
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4601448
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4663339
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4898243
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4933716
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5012939
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5143275
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5185374
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5354794
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5386482
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5420481
88	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5429842
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5455689
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5469992
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5471678
92	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5483288
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5486859
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5490190
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5533875
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5535142
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5543704
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5553434
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5562061
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5792500

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