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SQL exercises

September 18, 00:57 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: 15165

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Filippkin D.V. (_dimon_)	3	259	308	2025-09-12 13:42:31	2025-09-12 16:17:01	155
2	Koptel'tsev V. (selber)	21	113	240	2025-09-08 22:07:14		13130
3	Krasovskij E.A. (pegoopik)	1	262	308	2025-09-06 21:40:44	2025-09-06 22:55:33	75
4	Chernov D.V. (Kursist)	2	262	308	2025-09-06 21:42:05		16036
5	Sarkis'yan G. (gennadi_s)	20	115	181	2025-09-06 14:04:35		16493
6	Koptel'tsev V. (selber)	21	113	308	2025-09-05 21:56:38	2025-09-05 21:56:42	0
7	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		99345
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		221065
9	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		295121
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		303220
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		333468
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		345656
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		493509
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		494817
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		517568
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		545008
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		627106
18	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		739171
19	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		739171
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		768327
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		794848
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		808480
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		874522
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		877836
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		880226
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		912890
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		958066
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		965153
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		989730
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1234762
31	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1272317
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1306307
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1410296
34	Koptel'tsev V. (selber)	21	113	237	2022-11-06 21:16:51		1506461
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1545669
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1662579
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1809160
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1923210
39	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2060917
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2189269
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2323623
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2365809
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2369556
44	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2611623
45	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2678985
46	Koptel'tsev V. (selber)	21	113	259	2020-06-24 00:22:07		2753316
47	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2818270
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2826240
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2865755
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2889482
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3199871
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3227153
53	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3235215
54	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3253499
55	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3297577
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3437552
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3535820
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3539001
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3681192
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3741739
61	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3795098
62	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3842563
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3934630
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3938539
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3938618
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3961247
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3975404
68	F (uff)	65	25	95	2018-01-22 15:57:03		4025341
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4077009
70	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4114479
71	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4116240
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4117308
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4155023
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4182140
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4215203
76	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4291848
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4338393
78	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4342542
79	F (uff)	65	25	185	2017-06-01 10:27:49		4364070
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4403943
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4465834
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4700737
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4736210
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4815434
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4945769
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4987868
87	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5157289
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5188976
89	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5222975
90	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5232337
91	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5258183
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5272487
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5274173
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5285782
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5289353
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5292684
97	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5336370
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5337637
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5346199
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5355929

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