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SQL exercises

October 05, 11:57 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: 13878

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	124	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
2	Safronov P.A. (Paulus73)	135	0	53	2026-10-05 09:54:21		123
3	Vinogradova S.M. (Tigra1)	124	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
4	Filippkin D.V. (_dimon_)	3	259	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
5	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		7384
6	Vinogradova S.M. (Tigra1)	124	4	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
7	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
8	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
9	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
10	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		40546
11	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		54616
12	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		65125
13	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		94944
14	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		97836
15	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		106544
16	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		109312
17	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		159439
18	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		193868
19	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		227532
20	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		237760
21	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		238602
22	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		269314
23	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		362541
24	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		438381
25	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		650085
26	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		884208
27	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		896396
28	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1044249
29	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1045557
30	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1068308
31	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1177846
32	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1289911
33	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1289911
34	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1319067
35	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1345588
36	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1359220
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1425262
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1428576
39	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1430965
40	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1463630
41	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1515893
42	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1540470
43	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1857047
44	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1961036
45	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2057201
46	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2096409
47	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2213319
48	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2359900
49	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2611657
50	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2740008
51	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2874362
52	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2916549
53	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2920296
54	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3162362
55	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3229725
56	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3304055
57	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3369009
58	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3376980
59	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3416495
60	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3440222
61	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3750611
62	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3777893
63	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3785955
64	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3804239
65	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3848317
66	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3988292
67	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4086560
68	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4089741
69	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4231932
70	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4292479
71	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4345838
72	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4393303
73	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4485370
74	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4489279
75	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4489358
76	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4511987
77	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4526144
78	F (uff)	65	25	95	2018-01-22 15:57:03		4576080
79	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4627749
80	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4665219
81	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4666980
82	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4668048
83	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4705763
84	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4732880
85	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4765943
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4842588
87	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4889133
88	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4893282
89	F (uff)	65	25	185	2017-06-01 10:27:49		4914810
90	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4954683
91	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5016574
92	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5251477
93	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5286950
94	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5366173
95	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5496509
96	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5538608
97	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5708029
98	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5739716
99	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5773715
100	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5783076

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