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SQL exercises

October 16, 02:33 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: 13896

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
2	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		7772
3	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
4	Safronov P.A. (Paulus73)	117	6	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
5	Safronov P.A. (Paulus73)	117	6	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
6	Safronov P.A. (Paulus73)	117	6	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
7	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
8	Safronov P.A. (Paulus73)	117	6	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
9	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
10	Vinogradova S.M. (Tigra1)	125	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
11	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		22659
12	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		55822
13	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		69891
14	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		80400
15	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		110219
16	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		113112
17	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		121820
18	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		124588
19	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		174714
20	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		209143
21	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		242808
22	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		253036
23	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		253878
24	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		284590
25	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		377817
26	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		453657
27	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		665360
28	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		899483
29	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		911672
30	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1059524
31	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1060832
32	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1083583
33	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1193122
34	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1305186
35	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1305187
36	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1334343
37	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1360863
38	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1374495
39	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1440538
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1443851
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1446241
42	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1478906
43	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1531168
44	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1555745
45	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1872323
46	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1976311
47	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2072476
48	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2111685
49	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2228594
50	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2375175
51	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2626932
52	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2755284
53	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2889638
54	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2931824
55	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2935572
56	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3177638
57	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3245001
58	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3319331
59	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3384285
60	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3392256
61	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3431770
62	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3455497
63	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3765887
64	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3793169
65	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3801231
66	Kordyum A. (alko58)	232	0	12	2019-07-12 15:58:52		3819514
67	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3863593
68	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4003568
69	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4101836
70	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4105017
71	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4247208
72	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4307755
73	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4361114
74	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4408579
75	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4500645
76	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4504554
77	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4504633
78	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4527263
79	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4541420
80	F (uff)	66	23	95	2018-01-22 15:57:03		4591356
81	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4643024
82	Kordyum A. (alko58)	232	0	101	2017-11-21 18:18:43		4680494
83	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4682256
84	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4683324
85	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4721039
86	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4748156
87	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4781218
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4857863
89	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4904408
90	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4908557
91	F (uff)	66	23	185	2017-06-01 10:27:49		4930085
92	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4969958
93	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5031849
94	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5266753
95	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5302226
96	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5381449
97	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5511784
98	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5553884
99	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5723304
100	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5754992

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