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SQL exercises

November 04, 21:29 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: 13939

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Kuritsyn V.N. (ValNick)	138	0	53	2026-11-04 16:28:05		301
2	Sarkis'yan G. (gennadi_s)	13	193	210	2026-11-03 14:52:53		1837
3	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59	2026-11-03 11:42:59	49129
4	Sarkis'yan G. (gennadi_s)	13	193	209	2026-10-30 12:41:46	2026-10-30 14:06:57	85
5	Sarkis'yan G. (gennadi_s)	13	193	192	2026-10-17 13:29:17	2026-10-22 14:52:53	7284
6	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		23187
7	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		36268
8	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		84318
9	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		98388
10	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		108896
11	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		138716
12	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		141608
13	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		150316
14	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		153084
15	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		203211
16	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		237640
17	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		271304
18	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		281532
19	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		282374
20	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		313086
21	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		406313
22	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		482153
23	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		693856
24	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		927980
25	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		940168
26	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1088021
27	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1089329
28	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1112079
29	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1221618
30	Slavutinskij V.V. (Vasilko)	460	0	5	2024-04-22 17:26:35		1333683
31	Slavutinskij V.V. (Vasilko)	460	0	7	2024-04-22 17:26:21		1333683
32	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1362839
33	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1389360
34	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1402992
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1469034
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1472348
37	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1474737
38	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1507402
39	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1559665
40	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1584242
41	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1900819
42	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		2004808
43	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2100973
44	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2140181
45	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2257091
46	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2403672
47	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2655428
48	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2783780
49	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2918134
50	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2960321
51	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2964068
52	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3206134
53	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3273497
54	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3347827
55	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3412781
56	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3420752
57	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3460267
58	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3483994
59	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3794383
60	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3821665
61	Romanov K.Yu. (kostik)	314	0	12	2019-07-25 08:42:10		3829727
62	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3848011
63	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3892089
64	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4032064
65	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4130332
66	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4133513
67	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4275704
68	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4336251
69	Voevutskij S.A. (SergLK)	222	0	45	2018-07-01 13:19:14		4389610
70	Zyrin V.E. (Vezyr)	555	0	29	2018-05-29 14:14:19		4437075
71	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4529142
72	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4533051
73	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4533130
74	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4555759
75	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4569916
76	F (uff)	66	23	95	2018-01-22 15:57:03		4619852
77	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4671521
78	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4708991
79	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4710752
80	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4711820
81	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4749535
82	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4776652
83	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4809715
84	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4886360
85	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4932905
86	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4937054
87	F (uff)	66	23	185	2017-06-01 10:27:49		4958582
88	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4998455
89	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5060346
90	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5295249
91	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5330722
92	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5409945
93	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5540281
94	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5582380
95	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5751801
96	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5783488
97	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5817487
98	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5826848
99	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5852695
100	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5866999

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