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SQL exercises

January 22, 15:58 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: 14950

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Chuvstvin M. (chuvstvinmaxim)	127	3	142	2025-01-21 19:19:05		1239
2	Sarkis'yan G. (gennadi_s)	35	66	159	2025-01-16 15:33:13	2025-01-21 15:44:02	7211
3	Chuvstvin M. (chuvstvinmaxim)	127	3	197	2025-01-21 00:09:37	2025-01-21 01:41:48	92
4	Chuvstvin M. (chuvstvinmaxim)	127	3	258	2025-01-21 00:01:28		2397
5	Chuvstvin M. (chuvstvinmaxim)	127	3	192	2025-01-20 10:46:29	2025-01-20 23:52:58	786
6	Chuvstvin M. (chuvstvinmaxim)	127	3	138	2025-01-14 01:48:28	2025-01-20 01:53:02	8645
7	Sarkis'yan G. (gennadi_s)	35	66	158	2025-01-12 14:21:35	2025-01-14 17:52:54	3091
8	Koptel'tsev V. (selber)	24	98	143	2025-01-14 06:44:30		12074
9	Chuvstvin M. (chuvstvinmaxim)	127	3	137	2025-01-06 01:47:12	2025-01-14 01:07:31	11480
10	Makarov I.A. (_Bkmz_)	93	9	99	2025-01-12 10:29:27	2025-01-12 16:28:41	359
11	Makarov I.A. (_Bkmz_)	93	9	93	2025-01-11 14:46:23	2025-01-11 19:10:48	264
12	Makarov I.A. (_Bkmz_)	93	9	82	2025-01-11 10:14:35	2025-01-11 14:05:11	231
13	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		150250
14	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		151558
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		174308
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		201749
17	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		283847
18	Slavutinskij V.V. (Vasilko)	436	0	5	2024-04-22 17:26:35		395912
19	Slavutinskij V.V. (Vasilko)	436	0	7	2024-04-22 17:26:21		395912
20	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		425068
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		451589
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		465221
23	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	305	2024-01-19 17:35:31		531263
24	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	306	2024-01-17 10:21:39		534577
25	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	71	2024-01-15 18:32:03		536966
26	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		569631
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		614807
28	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		621894
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		646471
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		891502
31	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		929058
32	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		963048
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1067037
34	Koptel'tsev V. (selber)	24	98	237	2022-11-06 21:16:51		1163202
35	Borisenkov D.V. (xuser)	97	9	173	2022-10-10 15:48:20		1202410
36	Lukov D.R. (Gendalf)	237	0	90	2022-07-21 11:18:50		1319320
37	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1465901
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1579950
39	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1717657
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		1846009
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1980363
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2022550
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2026297
44	Kozharinov A. (bubala)	202	0	10	2020-09-30 09:55:07		2268363
45	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2335726
46	Koptel'tsev V. (selber)	24	98	259	2020-06-24 00:22:07		2410056
47	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2475010
48	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2482981
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2522496
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2546223
51	Fokin A. (Vizitor )	43	52	217	2019-08-18 21:46:14		2856612
52	Bazavluk M. (DoNotLook)	95	9	141	2019-07-30 23:04:12		2883894
53	Romanov K.Yu. (kostik)	297	0	12	2019-07-25 08:42:10		2891956
54	Kordyum A. (alko58)	218	0	12	2019-07-12 15:58:52		2910240
55	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		2954318
56	Mal'tsev A.V. (Palkin)	110	8	218	2019-03-06 20:25:17		3094293
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3192561
58	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		3195742
59	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		3337933
60	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3398480
61	Voevutskij S.A. (SergLK)	206	0	45	2018-07-01 13:19:14		3451839
62	Zyrin V.E. (Vezyr)	527	0	29	2018-05-29 14:14:19		3499304
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3591371
64	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3595280
65	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3595359
66	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3617988
67	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3632145
68	F (uff)	64	25	95	2018-01-22 15:57:03		3682081
69	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3733750
70	Kordyum A. (alko58)	218	0	101	2017-11-21 18:18:43		3771220
71	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3772981
72	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3774049
73	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3811764
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3838881
75	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3871944
76	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3948589
77	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3995134
78	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		3999283
79	F (uff)	64	25	185	2017-06-01 10:27:49		4020811
80	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4060684
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4122575
82	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4357478
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4392951
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4472174
85	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4602510
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4644609
87	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4814030
88	Maslyaev V.S. (Velmont)	88	11	170	2015-11-06 14:01:20		4845717
89	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4879716
90	Fomichev A.V. (Fomichev)	192	0	101	2015-10-07 11:21:04		4889077
91	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4914924
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4929228
93	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		4930914
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4942523
95	Chebykin D. (GriGrim)	38	62	217	2015-08-28 21:04:30		4946094
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		4949425
97	Maslyaev V.S. (Velmont)	88	11	140	2015-07-27 05:27:50		4993111
98	Khromulyak O.M. (ChOleg)	119	5	150	2015-07-26 08:20:51		4994378
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5002939
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5012670

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