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SQL exercises

May 28, 22:17 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: 15117

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	9	229	157	2026-05-28 09:45:32		752
2	Vyazovetskov A.S. (alex_v)	9	229	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
3	Vyazovetskov A.S. (alex_v)	9	229	155	2026-05-22 11:18:23	2026-05-25 14:49:10	4531
4	Varenikov D.M. (Dmitriy Varenikov)	20	128	303	2026-05-23 22:21:57		7196
5	Chernov D.V. (Kursist)	2	262	303	2026-05-23 20:49:50		7288
6	Koptel'tsev V. (selber)	19	129	303	2026-05-23 20:23:43		7314
7	Krasovskij E.A. (pegoopik)	1	262	303	2026-05-23 15:29:26	2026-05-23 19:54:13	265
8	Makarov I.A. (_Bkmz_)	56	32	195	2026-05-23 10:27:06	2026-05-23 15:11:29	284
9	Sarkis'yan G. (gennadi_s)	15	170	303	2026-05-23 13:24:38	2026-05-23 13:24:42	0
10	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
11	Vyazovetskov A.S. (alex_v)	9	229	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
12	Makarov I.A. (_Bkmz_)	56	32	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
13	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		19252
14	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		27893
15	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		40953
16	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		51181
17	Vyazovetskov A.S. (alex_v)	9	229	264	2026-04-22 19:15:17		52022
18	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		82734
19	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		175962
20	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		251801
21	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		463505
22	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		585225
23	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		667380
24	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		697628
25	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		709816
26	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		857669
27	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		858977
28	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		881728
29	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		991266
30	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1103331
31	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1103331
32	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1132487
33	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1159008
34	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1172640
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1238682
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1241996
37	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1244386
38	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1277051
39	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1329313
40	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1353890
41	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1670467
42	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1774456
43	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1870621
44	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1909829
45	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2026739
46	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2173320
47	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2425077
48	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2553429
49	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2687783
50	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2729969
51	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2733717
52	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2975783
53	Samarin A. (not.yet.sql.master)	145	0	112	2020-08-14 15:12:10		3043146
54	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3117476
55	Samarin A. (not.yet.sql.master)	145	0	138	2020-05-09 21:48:04		3182430
56	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3190400
57	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3229915
58	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3253642
59	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3564032
60	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3591314
61	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3599376
62	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3617659
63	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3661737
64	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3801712
65	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3899980
66	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3903161
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4045352
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4105899
69	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4159259
70	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4206723
71	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4298790
72	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4302699
73	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4302778
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4325407
75	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4339564
76	F (uff)	65	25	95	2018-01-22 15:57:03		4389501
77	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4441169
78	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4478639
79	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4480400
80	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4481468
81	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4519183
82	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4546300
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4579363
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4656008
85	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4702553
86	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4706702
87	F (uff)	65	25	185	2017-06-01 10:27:49		4728230
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4768103
89	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4829994
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5064898
91	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5100370
92	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5179594
93	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5309929
94	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5352028
95	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5521449
96	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5553136
97	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5587135
98	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5596497
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5622343
100	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5636647

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