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SQL exercises

October 04, 20:44 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: 13877

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	130	2	140	2026-10-04 15:59:22		285
2	Vinogradova S.M. (Tigra1)	130	2	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
3	Filippkin D.V. (_dimon_)	3	259	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
4	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		6470
5	Vinogradova S.M. (Tigra1)	130	2	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
6	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
7	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
8	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
9	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		39633
10	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		53702
11	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		64211
12	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		94030
13	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		96923
14	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		105631
15	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		108399
16	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		158525
17	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		192954
18	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		226619
19	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		236847
20	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		237689
21	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		268401
22	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		361628
23	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		437468
24	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		649171
25	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		883294
26	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		895483
27	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1043336
28	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1044644
29	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1067394
30	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1176933
31	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1288998
32	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1288998
33	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1318154
34	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1344675
35	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1358306
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1424349
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1427663
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1430052
39	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1462717
40	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1514980
41	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1539556
42	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1856134
43	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1960123
44	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2056287
45	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2095496
46	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2212405
47	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2358987
48	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2610743
49	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2739095
50	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2873449
51	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2915636
52	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2919383
53	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3161449
54	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3228812
55	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3303142
56	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3368096
57	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3376067
58	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3415582
59	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3439309
60	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3749698
61	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3776980
62	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3785042
63	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3803325
64	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3847404
65	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3987379
66	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4085647
67	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4088828
68	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4231019
69	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4291566
70	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4344925
71	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4392390
72	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4484457
73	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4488366
74	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4488444
75	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4511074
76	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4525231
77	F (uff)	65	25	95	2018-01-22 15:57:03		4575167
78	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4626836
79	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4664306
80	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4666067
81	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4667135
82	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4704850
83	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4731967
84	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4765030
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4841675
86	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4888219
87	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4892368
88	F (uff)	65	25	185	2017-06-01 10:27:49		4913896
89	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4953769
90	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5015660
91	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5250564
92	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5286037
93	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5365260
94	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5495596
95	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5537695
96	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5707115
97	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5738803
98	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5772802
99	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5782163
100	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5808010

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