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SQL exercises

October 03, 01:55 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: 13875

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Filippkin D.V. (_dimon_)	3	259	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
2	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		3901
3	Vinogradova S.M. (Tigra1)	148	0	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
4	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
5	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
6	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
7	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		37064
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		51133
9	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		61642
10	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		91461
11	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		94354
12	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		103062
13	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		105830
14	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		155956
15	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		190385
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		224050
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		234278
18	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		235120
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		265832
20	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		359059
21	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		434899
22	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		646602
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		880725
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		892914
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1040766
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1042074
27	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1064825
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1174364
29	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1286429
30	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1286429
31	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1315585
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1342105
33	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1355737
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1421780
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1425093
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1427483
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1460148
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1512411
39	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1536987
40	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1853565
41	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1957553
42	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2053718
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2092927
44	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2209836
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2356417
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2608174
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2736526
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2870880
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2913067
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2916814
51	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3158880
52	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3226243
53	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3300573
54	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3365527
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3373498
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3413012
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3436740
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3747129
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3774411
60	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3782473
61	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3800756
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3844835
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3984810
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4083078
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4086259
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4228450
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4288997
68	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4342356
69	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4389821
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4481887
71	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4485797
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4485875
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4508505
74	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4522662
75	F (uff)	65	25	95	2018-01-22 15:57:03		4572598
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4624266
77	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4661736
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4663498
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4664566
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4702281
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4729398
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4762461
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4839105
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4885650
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4889799
86	F (uff)	65	25	185	2017-06-01 10:27:49		4911327
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4951200
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5013091
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5247995
90	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5283468
91	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5362691
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5493026
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5535126
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5704546
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5736234
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5770233
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5779594
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5805440
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5819744
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5821430

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