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SQL exercises

October 03, 18:56 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: 13876

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	130	2	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
2	Filippkin D.V. (_dimon_)	3	259	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
3	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		4923
4	Vinogradova S.M. (Tigra1)	130	2	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
5	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
6	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
7	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
8	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		38086
9	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		52155
10	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		62664
11	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		92483
12	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		95375
13	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		104084
14	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		106852
15	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		156978
16	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		191407
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		225072
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		235300
19	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		236142
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		266853
21	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		360081
22	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		435921
23	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		647624
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		881747
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		893935
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1041788
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1043096
28	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1065847
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1175386
30	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1287450
31	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1287451
32	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1316606
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1343127
34	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1356759
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1422801
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1426115
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1428505
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1461170
39	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1513432
40	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1538009
41	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1854586
42	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1958575
43	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2054740
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2093949
45	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2210858
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2357439
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2609196
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2737548
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2871902
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2914088
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2917836
52	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3159902
53	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3227265
54	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3301595
55	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3366549
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3374519
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3414034
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3437761
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3748151
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3775433
61	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3783495
62	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3801778
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3845857
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3985832
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4084099
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4087280
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4229471
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4290019
69	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4343378
70	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4390843
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4482909
72	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4486818
73	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4486897
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4509527
75	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4523683
76	F (uff)	65	25	95	2018-01-22 15:57:03		4573620
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4625288
78	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4662758
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4664519
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4665588
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4703303
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4730419
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4763482
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4840127
85	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4886672
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4890821
87	F (uff)	65	25	185	2017-06-01 10:27:49		4912349
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4952222
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5014113
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5249017
91	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5284489
92	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5363713
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5494048
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5536147
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5705568
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5737256
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5771254
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5780616
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5806462
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5820766

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