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SQL exercises

July 19, 18:05 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: 15110

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	61	28	202	2025-07-19 10:07:28	2025-07-19 12:15:02	128
2	Sarkis'yan G. (gennadi_s)	24	105	176	2025-07-14 10:47:08	2025-07-18 13:39:50	5933
3	Chebykin D. (GriGrim)	38	62	32	2025-07-14 00:48:13	2025-07-14 23:43:31	1375
4	Chebykin D. (GriGrim)	38	62	5	2025-07-13 18:57:04	2025-07-14 00:44:45	348
5	Makarov I.A. (_Bkmz_)	61	28	162	2025-07-13 09:28:38	2025-07-13 11:51:03	142
6	Sarkis'yan G. (gennadi_s)	24	105	175	2025-07-04 14:31:46	2025-07-12 13:47:07	11475
7	Makarov I.A. (_Bkmz_)	61	28	209	2025-07-12 09:51:05	2025-07-12 11:17:41	87
8	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		12532
9	Makarov I.A. (_Bkmz_)	61	28	177	2025-07-06 09:38:39	2025-07-06 11:56:40	138
10	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		134252
11	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37		208308
12	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		216407
13	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		246655
14	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		258844
15	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		406696
16	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		408004
17	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		430755
18	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		458195
19	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		540294
20	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		652359
21	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		652359
22	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		681515
23	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		708035
24	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		721667
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		787710
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		791023
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		793413
28	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		826078
29	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		871254
30	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		878341
31	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		902917
32	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1147949
33	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1185505
34	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1219495
35	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1323483
36	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1419648
37	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1458857
38	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1575766
39	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1722347
40	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1836397
41	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1974104
42	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2102456
43	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2236810
44	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2278997
45	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2282744
46	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2524810
47	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2592173
48	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2666503
49	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2731457
50	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2739428
51	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2778942
52	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2802670
53	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3113059
54	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3140341
55	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3148403
56	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3166686
57	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3210765
58	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3350740
59	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3449008
60	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3452189
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3594380
62	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3654927
63	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3708286
64	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3755751
65	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3847817
66	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3851727
67	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3851805
68	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3874435
69	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3888592
70	F (uff)	65	25	95	2018-01-22 15:57:03		3938528
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3990196
72	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4027666
73	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4029428
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4030496
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4068211
76	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4095328
77	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4128391
78	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4205035
79	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4251580
80	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4255729
81	F (uff)	65	25	185	2017-06-01 10:27:49		4277257
82	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4317130
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4379021
84	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4613925
85	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4649398
86	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4728621
87	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4858956
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4901056
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5070476
90	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5102164
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5136163
92	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5145524
93	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5171370
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5185674
95	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5187360
96	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5198969
97	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5202541
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5205872
99	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5249557
100	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5250824

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