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SQL exercises

January 25, 22:30 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: 15336

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	16	145	191	2026-01-19 15:25:23	2026-01-25 17:31:40	8766
2	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37	2026-01-24 00:54:53	479438
3	Petrov Y. (YuriPetrov)	32	78	198	2026-01-17 16:11:10	2026-01-20 01:16:01	3425
4	Sarkis'yan G. (gennadi_s)	16	145	190	2026-01-11 13:55:22	2026-01-12 11:21:39	1286
5	Lukov D.R. (Gendalf)	242	0	32	2025-12-05 01:36:21		74694
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		286398
7	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		408118
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		490273
9	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		520521
10	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		532709
11	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		680562
12	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		681870
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		704621
14	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		732061
15	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		814159
16	Slavutinskij V.V. (Vasilko)	449	0	5	2024-04-22 17:26:35		926224
17	Slavutinskij V.V. (Vasilko)	449	0	7	2024-04-22 17:26:21		926224
18	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		955380
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		981901
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		995533
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1061575
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1064889
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1067279
24	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1099943
25	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1145119
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1152206
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1176783
28	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1421814
29	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1459370
30	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1493360
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1597349
32	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1693514
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1732722
34	Lukov D.R. (Gendalf)	242	0	90	2022-07-21 11:18:50		1849632
35	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1996213
36	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2247970
37	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2376321
38	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2510675
39	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2552862
40	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2556609
41	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2798675
42	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2866038
43	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2940368
44	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3005323
45	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3013293
46	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3052808
47	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3076535
48	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3386924
49	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3414206
50	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3422268
51	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3440552
52	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3484630
53	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3624605
54	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3722873
55	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3726054
56	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3868245
57	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3928792
58	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3982151
59	Zyrin V.E. (Vezyr)	541	0	29	2018-05-29 14:14:19		4029616
60	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4121683
61	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4125592
62	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4125671
63	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4148300
64	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4162457
65	F (uff)	65	25	95	2018-01-22 15:57:03		4212394
66	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4264062
67	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4301532
68	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4303293
69	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4304361
70	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4342076
71	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4369193
72	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4402256
73	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4478901
74	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4525446
75	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4529595
76	F (uff)	65	25	185	2017-06-01 10:27:49		4551123
77	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4590996
78	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4652887
79	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4887790
80	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4923263
81	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5002486
82	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5132822
83	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5174921
84	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5344342
85	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5376029
86	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5410028
87	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5419390
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5445236
89	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5459540
90	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5461226
91	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5472835
92	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5476406
93	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5479737
94	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5523423
95	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5524690
96	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5533252
97	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5542982
98	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5551609
99	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5782047
100	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5783674

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