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SQL exercises

July 09, 02:19 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: 15136

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Koptel'tsev V. (selber)	19	130	241	2026-05-23 20:23:43	2026-07-07 07:38:38	64035
2	Varenikov D.M. (Dmitriy Varenikov)	20	129	251	2026-06-28 23:28:11	2026-06-29 16:31:13	1023
3	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		32140
4	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		66570
5	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		87175
6	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		100234
7	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		110462
8	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		111304
9	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		142016
10	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		235243
11	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		311083
12	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		522786
13	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		726661
14	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		756909
15	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		769098
16	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		916951
17	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		918259
18	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		941009
19	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1050548
20	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1162613
21	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1162613
22	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1191769
23	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1218290
24	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1231922
25	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1297964
26	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1301278
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1303667
28	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1336332
29	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1388595
30	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1413172
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1729749
32	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1833738
33	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1929903
34	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1969111
35	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		2086021
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2232602
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2484358
38	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2612710
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2747064
40	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2789251
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2792998
42	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3035064
43	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3102427
44	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3176757
45	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3241711
46	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3249682
47	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3289197
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3312924
49	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3623313
50	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3650595
51	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3658657
52	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3676941
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3721019
54	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3860994
55	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3959262
56	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3962443
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4104634
58	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4165181
59	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4218540
60	Zyrin V.E. (Vezyr)	551	0	29	2018-05-29 14:14:19		4266005
61	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4358072
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4361981
63	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4362060
64	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4384689
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4398846
66	F (uff)	65	25	95	2018-01-22 15:57:03		4448782
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4500451
68	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4537921
69	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4539682
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4540750
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4578465
72	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4605582
73	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4638645
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4715290
75	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4761835
76	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4765984
77	F (uff)	65	25	185	2017-06-01 10:27:49		4787512
78	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4827385
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4889276
80	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5124179
81	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5159652
82	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5238875
83	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5369211
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5411310
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5580731
86	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5612418
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5646417
88	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5655778
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5681625
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5695929
91	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5697614
92	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5709224
93	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5712795
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5716126
95	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5759812
96	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5761079
97	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5769640
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5779370
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5787997
100	Skorohod I. (Dracul4ik)	79	15	256	2015-01-28 15:03:11		6018436

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