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SQL exercises

June 10, 00:11 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		24682
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		24708
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		36646
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		45287
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		58347
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		68575
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		69416
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		100128
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		193356
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		269195
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		480899
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		602619
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		684774
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		715022
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		727210
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		875063
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		876371
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		899122
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1008660
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1120725
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1120725
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1149881
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1176402
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1190034
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1256076
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1259390
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1261780
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1294445
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1346707
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1371284
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1687861
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1791850
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1888015
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1927223
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2044133
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2190714
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2442471
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2570823
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2705177
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2747363
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2751111
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2993177
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3060540
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3134870
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3199824
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3207794
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3247309
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3271036
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3581425
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3608708
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3616770
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3635053
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3679131
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3819106
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3917374
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3920555
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4062746
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4123293
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4176652
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4224117
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4316184
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4320093
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4320172
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4342801
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4356958
74	F (uff)	65	25	95	2018-01-22 15:57:03		4406895
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4458563
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4496033
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4497794
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4498862
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4536577
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4563694
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4596757
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4673402
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4719947
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4724096
85	F (uff)	65	25	185	2017-06-01 10:27:49		4745624
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4785497
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4847388
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5082291
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5117764
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5196988
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5327323
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5369422
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5538843
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5570530
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5604529
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5613891
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5639737
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5654041
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5655727
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5667336

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