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SQL exercises

June 10, 04:22 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: 15113

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
2	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
3	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
4	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
5	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
6	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
7	Makarov I.A. (_Bkmz_)	55	35	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
8	Vyazovetskov A.S. (alex_v)	7	241	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
9	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		24933
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		24959
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		36897
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		45538
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		58598
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		68826
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		69668
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		100379
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		193607
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		269446
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		481150
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		602870
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		685025
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		715273
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		727461
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		875314
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		876622
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		899373
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1008911
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1120976
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1120976
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1150132
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1176653
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1190285
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1256327
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1259641
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1262031
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1294696
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1346958
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1371535
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1688112
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1792101
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1888266
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1927474
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2044384
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2190965
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2442722
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2571074
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2705428
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2747614
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2751362
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2993428
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3060791
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3135121
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3200075
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3208045
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3247560
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3271287
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3581677
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3608959
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3617021
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3635304
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3679382
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3819358
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3917625
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3920806
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4062997
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4123544
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4176904
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4224369
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4316435
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4320344
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4320423
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4343052
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4357209
74	F (uff)	65	25	95	2018-01-22 15:57:03		4407146
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4458814
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4496284
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4498045
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4499114
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4536828
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4563945
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4597008
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4673653
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4720198
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4724347
85	F (uff)	65	25	185	2017-06-01 10:27:49		4745875
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4785748
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4847639
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5082543
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5118015
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5197239
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5327574
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5369673
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5539094
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5570781
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5604780
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5614142
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5639988
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5654292
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5655978
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5667587

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