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SQL exercises

July 06, 07:44 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: 15121

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Varenikov D.M. (Dmitriy Varenikov)	20	129	251	2026-06-28 23:28:11	2026-06-29 16:31:13	1023
2	Williams B. (BW)	35	66	262	2025-04-17 12:32:37	2026-06-24 13:25:33	623573
3	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		28146
4	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		62575
5	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		62601
6	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		83180
7	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		96239
8	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		106467
9	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		107309
10	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		138021
11	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		231248
12	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		307088
13	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		518791
14	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		722666
15	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		752914
16	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		765103
17	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		912956
18	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		914264
19	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		937014
20	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1046553
21	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1158618
22	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1158618
23	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1187774
24	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1214295
25	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1227927
26	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1293969
27	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1297283
28	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1299672
29	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1332337
30	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1384600
31	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1409177
32	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1725754
33	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1829743
34	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1925908
35	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1965116
36	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		2082026
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2228607
38	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2480363
39	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2608715
40	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2743069
41	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2785256
42	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2789003
43	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		3031069
44	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3098432
45	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3172762
46	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3237716
47	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3245687
48	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3285202
49	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3308929
50	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3619318
51	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3646600
52	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3654662
53	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3672946
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3717024
55	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3856999
56	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3955267
57	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3958448
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4100639
59	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4161186
60	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4214545
61	Zyrin V.E. (Vezyr)	550	0	29	2018-05-29 14:14:19		4262010
62	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4354077
63	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4357986
64	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4358065
65	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4380694
66	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4394851
67	F (uff)	65	25	95	2018-01-22 15:57:03		4444787
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4496456
69	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4533926
70	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4535687
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4536755
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4574470
73	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4601587
74	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4634650
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4711295
76	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4757840
77	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4761989
78	F (uff)	65	25	185	2017-06-01 10:27:49		4783517
79	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4823390
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4885281
81	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5120184
82	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5155657
83	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5234880
84	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5365216
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5407315
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5576736
87	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5608423
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5642422
89	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5651783
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5677630
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5691934
92	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5693620
93	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5705229
94	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5708800
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5712131
96	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5755817
97	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5757084
98	Chebykin D. (GriGrim)	39	62	216	2015-07-20 09:39:02		5765645
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5775376
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5784002

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