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SQL exercises

July 13, 14:17 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: 15138

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	19	130	198	2026-07-12 02:54:38		2123
2	Koptel'tsev V. (selber)	19	130	241	2026-05-23 20:23:43	2026-07-07 07:38:38	64035
3	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		38619
4	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		73048
5	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		93654
6	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		106713
7	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		116941
8	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		117783
9	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		148494
10	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		241722
11	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		317562
12	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		529265
13	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		733140
14	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		763388
15	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		775576
16	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		923429
17	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		924737
18	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		947488
19	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1057027
20	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1169091
21	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1169092
22	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1198247
23	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1224768
24	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1238400
25	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1304442
26	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1307756
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1310146
28	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1342811
29	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1395073
30	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1419650
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1736227
32	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1840216
33	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1936381
34	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1975590
35	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		2092499
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2239080
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2490837
38	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2619189
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2753543
40	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2795729
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2799477
42	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3041543
43	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3108906
44	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3183236
45	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3248190
46	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3256161
47	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3295675
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3319402
49	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3629792
50	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3657074
51	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3665136
52	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3683419
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3727498
54	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3867473
55	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3965741
56	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3968921
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4111112
58	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4171660
59	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4225019
60	Zyrin V.E. (Vezyr)	551	0	29	2018-05-29 14:14:19		4272484
61	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4364550
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4368459
63	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4368538
64	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4391168
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4405324
66	F (uff)	65	25	95	2018-01-22 15:57:03		4455261
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4506929
68	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4544399
69	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4546160
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4547229
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4584944
72	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4612060
73	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4645123
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4721768
75	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4768313
76	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4772462
77	F (uff)	65	25	185	2017-06-01 10:27:49		4793990
78	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4833863
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4895754
80	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5130658
81	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5166131
82	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5245354
83	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5375689
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5417788
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5587209
86	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5618897
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5652895
88	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5662257
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5688103
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5702407
91	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5704093
92	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5715702
93	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5719273
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5722604
95	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5766290
96	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5767557
97	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5776119
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5785849
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5794476
100	Skorohod I. (Dracul4ik)	79	15	256	2015-01-28 15:03:11		6024915

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