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SQL exercises

August 24, 14:21 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: 15149

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	184	206	2026-08-15 14:26:50	2026-08-21 15:41:57	8715
2	Frolov K.A. (Murderface_)	135	0	24	2026-08-21 11:04:04	2026-08-21 11:17:39	14
3	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		4789
4	Komarov A.N. (Shveda Saulya)	35	68	160	2026-05-09 13:24:21	2026-08-20 17:24:55	148561
5	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		34608
6	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		37500
7	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		46209
8	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		48977
9	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		99103
10	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		133532
11	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		167197
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		177425
13	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		178267
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		208978
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		302206
16	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		378045
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		589749
18	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		823872
19	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		836060
20	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		983913
21	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		985221
22	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1007972
23	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1117510
24	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1229575
25	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1229575
26	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1258731
27	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1285252
28	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1298884
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1364926
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1368240
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1370630
32	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1403295
33	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1455557
34	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1480134
35	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1796711
36	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1900700
37	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		1996865
38	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2036073
39	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2152983
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2299564
41	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2551321
42	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2679673
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2814027
44	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2856213
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2859961
46	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3102027
47	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3169390
48	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3243720
49	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3308674
50	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3316644
51	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3356159
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3379886
53	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3690276
54	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3717558
55	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3725620
56	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3743903
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3787981
58	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3927957
59	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4026224
60	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4029405
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4171596
62	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4232143
63	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4285503
64	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4332967
65	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4425034
66	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4428943
67	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4429022
68	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4451651
69	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4465808
70	F (uff)	65	25	95	2018-01-22 15:57:03		4515745
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4567413
72	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4604883
73	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4606644
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4607713
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4645427
76	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4672544
77	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4705607
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4782252
79	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4828797
80	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4832946
81	F (uff)	65	25	185	2017-06-01 10:27:49		4854474
82	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4894347
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4956238
84	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5191142
85	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5226614
86	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5305838
87	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5436173
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5478272
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5647693
90	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5679380
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5713379
92	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5722741
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5748587
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5762891
95	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5764577
96	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5776186
97	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5779757
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5783088
99	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5826774
100	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5828041

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