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SQL exercises

September 26, 16:25 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: 13862

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
2	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
3	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31		4447
4	Sarkis'yan G. (gennadi_s)	14	187	53	2026-09-18 17:50:12	2026-09-19 18:45:38	1495
5	Krasovskij E.A. (pegoopik)	1	266	53	2026-09-18 15:39:39	2026-09-18 15:39:44	0
6	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		27854
7	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		41924
8	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		52432
9	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		82252
10	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		85144
11	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		93852
12	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		96620
13	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		146747
14	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		181176
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		214840
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		225068
17	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		225910
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		256622
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		349849
20	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		425689
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		637392
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		871516
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		883704
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1031557
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1032865
26	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1055615
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1165154
28	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1277219
29	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1277219
30	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1306375
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1332896
32	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1346528
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1412570
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1415884
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1418273
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1450938
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1503201
38	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1527778
39	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1844355
40	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1948344
41	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2044509
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2083717
43	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2200627
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2347208
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2598964
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2727316
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2861670
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2903857
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2907604
50	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3149670
51	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3217033
52	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3291363
53	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3356317
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3364288
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3403803
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3427530
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3737919
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3765201
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3773263
60	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3791547
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3835625
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3975600
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4073868
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4077049
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4219240
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4279787
67	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4333146
68	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4380611
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4472678
70	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4476587
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4476666
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4499295
73	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4513452
74	F (uff)	65	25	95	2018-01-22 15:57:03		4563388
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4615057
76	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4652527
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4654288
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4655356
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4693071
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4720188
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4753251
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4829896
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4876441
84	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4880590
85	F (uff)	65	25	185	2017-06-01 10:27:49		4902118
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4941991
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5003882
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5238785
89	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5274258
90	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5353481
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5483817
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5525916
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5695337
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5727024
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5761023
96	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5770384
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5796231
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5810535
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5812221
100	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5823830

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