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SQL exercises

July 24, 17:37 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: 15146

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Filippkin D.V. (_dimon_)	3	259	264	2026-07-23 15:54:45	2026-07-23 15:55:46	1
2	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04	2026-07-23 15:27:06	747609
3	Williams B. (BW)	35	66	308	2026-07-23 14:59:30		1598
4	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		1764
5	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		4532
6	Sarkis'yan G. (gennadi_s)	15	175	202	2026-07-19 14:34:28	2026-07-20 18:03:08	1649
7	Krasovskij E.A. (pegoopik)	1	265	242	2026-07-18 10:53:25	2026-07-18 19:12:40	499
8	Sarkis'yan G. (gennadi_s)	15	175	242	2026-07-18 13:38:46	2026-07-18 13:39:00	0
9	Timofeeva E.V. (Umrikhina)	26	96	24	2026-07-15 10:55:13	2026-07-15 11:24:36	29
10	Safronov P.A. (Paulus73)	134	0	137	2026-07-13 10:19:08	2026-07-14 00:12:15	833
11	Koptel'tsev V. (selber)	19	130	198	2026-07-12 02:54:38		18163
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		54658
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		89088
14	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		109693
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		122752
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		132980
17	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		133822
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		164534
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		257761
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		333601
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		545304
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		779427
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		791616
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		939469
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		940777
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		963527
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1073066
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1185131
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1185131
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1214287
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1240808
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1254440
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1320482
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1323796
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1326185
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1358850
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1411113
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1435689
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1752267
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1856256
41	Koptel'tsev V. (selber)	19	130	237	2022-11-06 21:16:51		1952421
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1991629
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2108539
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2255120
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2506876
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2635228
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2769582
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2811769
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2815516
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3057582
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3124945
52	Koptel'tsev V. (selber)	19	130	259	2020-06-24 00:22:07		3199275
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3264229
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3272200
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3311715
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3335442
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3645831
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3673113
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3681175
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3699458
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3743537
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3883512
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3981780
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3984961
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4127152
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4187699
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4241058
68	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4288523
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4380590
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4384499
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4384578
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4407207
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4421364
74	F (uff)	65	25	95	2018-01-22 15:57:03		4471300
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4522969
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4560439
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4562200
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4563268
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4600983
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4628100
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4661163
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4737808
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4784352
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4788502
85	F (uff)	65	25	185	2017-06-01 10:27:49		4810030
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4849902
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4911794
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5146697
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5182170
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5261393
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5391729
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5433828
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5603248
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5634936
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5668935
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5678296
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5704143
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5718446
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5720132
100	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5731742

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