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SQL exercises

May 13, 04:52 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: 15087

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	218	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
2	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		5248
3	Vyazovetskov A.S. (alex_v)	11	218	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
4	Vyazovetskov A.S. (alex_v)	11	218	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
5	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
6	Vyazovetskov A.S. (alex_v)	11	218	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
7	Vyazovetskov A.S. (alex_v)	11	218	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
8	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
9	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
10	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
11	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		18307
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		28535
13	Vyazovetskov A.S. (alex_v)	11	218	264	2026-04-22 19:15:17		29377
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		60089
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		153316
16	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		229156
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		440859
18	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		562580
19	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		644734
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		674982
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		687171
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		835024
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		836332
24	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		859082
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		968621
26	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1080686
27	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1080686
28	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1109842
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1136363
30	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1149994
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1216037
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1219351
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1221740
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1254405
35	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1306668
36	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1331244
37	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1647822
38	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1751811
39	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1847975
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1887184
41	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2004093
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2150675
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2402431
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2530783
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2665137
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2707324
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2711071
48	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2953137
49	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3020500
50	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3094830
51	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3159784
52	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3167755
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3207270
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3230997
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3541386
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3568668
57	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3576730
58	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3595013
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3639092
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3779067
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3877335
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3880516
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4022707
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4083254
65	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4136613
66	Zyrin V.E. (Vezyr)	548	0	29	2018-05-29 14:14:19		4184078
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4276145
68	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4280054
69	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4280132
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4302762
71	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4316919
72	F (uff)	65	25	95	2018-01-22 15:57:03		4366855
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4418524
74	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4455994
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4457755
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4458823
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4496538
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4523655
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4556718
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4633363
81	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4679907
82	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4684056
83	F (uff)	65	25	185	2017-06-01 10:27:49		4705584
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4745457
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4807348
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5042252
87	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5077725
88	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5156948
89	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5287284
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5329383
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5498803
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5530491
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5564490
94	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5573851
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5599698
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5614001
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5615687
98	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5627297
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5630868
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5634199

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