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SQL exercises

November 21, 21:06 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: 15217

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	128	187	2025-11-21 15:27:25		339
2	Sarkis'yan G. (gennadi_s)	19	128	186	2025-11-12 16:36:56	2025-11-14 15:14:47	2798
3	Sarkis'yan G. (gennadi_s)	19	128	185	2025-11-08 14:38:59	2025-11-10 12:02:03	2723
4	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		192714
5	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		314434
6	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		388490
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		396588
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		426837
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		439025
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		586878
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		588186
12	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		610937
13	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		638377
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		720475
15	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		832540
16	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		832540
17	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		861696
18	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		888217
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		901849
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		967891
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		971205
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		973594
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1006259
24	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1051435
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1058522
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1083099
27	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1328130
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1365686
29	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1399676
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1503665
31	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1599830
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1639038
33	Lukov D.R. (Gendalf)	241	0	90	2022-07-21 11:18:50		1755948
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1902529
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2154285
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2282637
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2416991
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2459178
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2462925
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2704991
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2772354
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2846684
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2911638
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2919609
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2959124
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2982851
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3293240
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3320522
49	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3328584
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3346868
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3390946
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3530921
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3629189
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3632370
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3774561
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3835108
57	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3888467
58	Zyrin V.E. (Vezyr)	539	0	29	2018-05-29 14:14:19		3935932
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4027999
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4031908
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4031987
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4054616
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4068773
64	F (uff)	65	25	95	2018-01-22 15:57:03		4118709
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4170378
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4207848
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4209609
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4210677
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4248392
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4275509
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4308572
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4385217
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4431762
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4435911
75	F (uff)	65	25	185	2017-06-01 10:27:49		4457439
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4497312
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4559203
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4794106
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4829579
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4908802
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5039138
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5081237
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5250658
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5282345
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5316344
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5325705
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5351552
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5365856
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5367542
90	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5379151
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5382722
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5386053
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5429739
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5431006
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5439567
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5449298
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5457924
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5688363
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5689990
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5738150

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