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SQL exercises

October 19, 00:00 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: 13894

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	188	192	2026-10-17 13:29:17		2071
2	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
3	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
4	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		11939
5	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
6	Safronov P.A. (Paulus73)	117	6	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
7	Safronov P.A. (Paulus73)	117	6	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
8	Safronov P.A. (Paulus73)	117	6	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
9	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
10	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		26827
11	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		59989
12	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		74059
13	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		84568
14	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		114387
15	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		117279
16	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		125987
17	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		128755
18	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		178882
19	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		213311
20	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		246975
21	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		257203
22	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		258045
23	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		288757
24	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		381984
25	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		457824
26	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		669528
27	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		903651
28	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		915839
29	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1063692
30	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1065000
31	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1087751
32	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1197289
33	Slavutinskij V.V. (Vasilko)	457	0	5	2024-04-22 17:26:35		1309354
34	Slavutinskij V.V. (Vasilko)	457	0	7	2024-04-22 17:26:21		1309354
35	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1338510
36	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1365031
37	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1378663
38	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1444705
39	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1448019
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1450408
41	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1483073
42	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1535336
43	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1559913
44	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1876490
45	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1980479
46	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2076644
47	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2115852
48	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2232762
49	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2379343
50	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2631100
51	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2759451
52	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2893805
53	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2935992
54	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2939739
55	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3181805
56	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3249168
57	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3323498
58	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3388452
59	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3396423
60	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3435938
61	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3459665
62	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3770054
63	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3797336
64	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3805398
65	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3823682
66	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3867760
67	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4007735
68	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4106003
69	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4109184
70	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4251375
71	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4311922
72	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4365281
73	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4412746
74	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4504813
75	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4508722
76	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4508801
77	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4531430
78	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4545587
79	F (uff)	66	23	95	2018-01-22 15:57:03		4595523
80	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4647192
81	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4684662
82	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4686423
83	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4687491
84	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4725206
85	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4752323
86	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4785386
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4862031
88	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4908576
89	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4912725
90	F (uff)	66	23	185	2017-06-01 10:27:49		4934253
91	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4974126
92	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5036017
93	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5270920
94	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5306393
95	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5385616
96	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5515952
97	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5558051
98	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5727472
99	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5759159
100	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5793158

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