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SQL exercises

October 04, 16:32 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	140	2026-10-04 15:59:22		34
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		6219
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		39382
10	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		53451
11	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		63960
12	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		93779
13	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		96671
14	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		105380
15	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		108148
16	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		158274
17	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		192703
18	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		226368
19	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		236596
20	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		237438
21	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		268149
22	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		361377
23	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		437217
24	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		648920
25	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		883043
26	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		895231
27	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1043084
28	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1044392
29	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1067143
30	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1176682
31	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1288746
32	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1288747
33	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1317902
34	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1344423
35	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1358055
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1424097
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1427411
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1429801
39	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1462466
40	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1514728
41	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1539305
42	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1855882
43	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1959871
44	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2056036
45	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2095245
46	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2212154
47	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2358735
48	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2610492
49	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2738844
50	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2873198
51	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2915384
52	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2919132
53	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3161198
54	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3228561
55	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3302891
56	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3367845
57	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3375816
58	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3415330
59	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3439057
60	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3749447
61	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3776729
62	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3784791
63	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3803074
64	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3847153
65	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3987128
66	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4085396
67	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4088576
68	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4230767
69	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4291315
70	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4344674
71	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4392139
72	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4484205
73	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4488114
74	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4488193
75	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4510823
76	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4524979
77	F (uff)	65	25	95	2018-01-22 15:57:03		4574916
78	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4626584
79	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4664054
80	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4665815
81	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4666884
82	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4704599
83	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4731715
84	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4764778
85	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4841423
86	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4887968
87	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4892117
88	F (uff)	65	25	185	2017-06-01 10:27:49		4913645
89	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4953518
90	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5015409
91	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5250313
92	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5285786
93	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5365009
94	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5495344
95	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5537443
96	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5706864
97	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5738552
98	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5772551
99	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5781912
100	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5807758

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