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SQL exercises

November 23, 19:19 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: 15247

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		3112
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		195486
5	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		317207
6	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		391263
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		399361
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		429609
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		441798
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		589651
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		590959
12	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		613709
13	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		641150
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		723248
15	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		835313
16	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		835313
17	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		864469
18	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		890990
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		904622
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		970664
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		973978
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		976367
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1009032
24	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1054208
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1061295
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1085872
27	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1330903
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1368459
29	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1402449
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1506438
31	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1602603
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1641811
33	Lukov D.R. (Gendalf)	241	0	90	2022-07-21 11:18:50		1758721
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1905302
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2157058
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2285410
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2419764
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2461951
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2465698
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2707764
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2775127
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2849457
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2914411
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2922382
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2961897
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2985624
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3296013
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3323295
49	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3331357
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3349641
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3393719
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3533694
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3631962
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3635143
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3777334
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3837881
57	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3891240
58	Zyrin V.E. (Vezyr)	539	0	29	2018-05-29 14:14:19		3938705
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4030772
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4034681
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4034760
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4057389
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4071546
64	F (uff)	65	25	95	2018-01-22 15:57:03		4121482
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4173151
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4210621
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4212382
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4213450
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4251165
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4278282
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4311345
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4387990
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4434535
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4438684
75	F (uff)	65	25	185	2017-06-01 10:27:49		4460212
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4500085
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4561976
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4796879
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4832352
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4911575
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5041911
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5084010
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5253431
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5285118
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5319117
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5328478
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5354325
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5368629
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5370315
90	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5381924
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5385495
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5388826
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5432512
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5433779
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5442340
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5452071
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5460697
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5691136
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5692763
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5740923

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