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SQL exercises

November 06, 09:05 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: 13949

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Kuritsyn V.N. (ValNick)	137	0	53	2026-11-04 16:28:05	2026-11-05 02:38:55	611
2	Sarkis'yan G. (gennadi_s)	13	193	210	2026-11-03 14:52:53		3972
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	Frolov K.A. (Murderface_)	136	0	53	2026-10-19 19:02:15		25323
6	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		38404
7	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		86454
8	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		100523
9	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		111032
10	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		140851
11	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		143744
12	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		152452
13	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		155220
14	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		205346
15	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		239775
16	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		273440
17	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		283668
18	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		284510
19	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		315222
20	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		408449
21	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		484289
22	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		695992
23	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		930115
24	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		942304
25	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1090157
26	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1091465
27	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1114215
28	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1223754
29	Slavutinskij V.V. (Vasilko)	460	0	5	2024-04-22 17:26:35		1335819
30	Slavutinskij V.V. (Vasilko)	460	0	7	2024-04-22 17:26:21		1335819
31	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1364975
32	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1391496
33	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1405127
34	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1471170
35	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1474484
36	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1476873
37	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1509538
38	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1561801
39	Rudikov E. (cubie)	138	0	138	2023-10-31 17:27:54		1586377
40	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1902955
41	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		2006944
42	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2103108
43	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2142317
44	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2259226
45	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2405808
46	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2657564
47	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2785916
48	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2920270
49	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2962457
50	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2966204
51	Kozharinov A. (bubala)	215	0	10	2020-09-30 09:55:07		3208270
52	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3275633
53	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3349963
54	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3414917
55	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3422888
56	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3462402
57	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3486130
58	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3796519
59	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3823801
60	Romanov K.Yu. (kostik)	314	0	12	2019-07-25 08:42:10		3831863
61	Kordyum A. (alko58)	233	0	12	2019-07-12 15:58:52		3850146
62	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3894225
63	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4034200
64	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4132468
65	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4135649
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4277840
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4338387
68	Voevutskij S.A. (SergLK)	222	0	45	2018-07-01 13:19:14		4391746
69	Zyrin V.E. (Vezyr)	555	0	29	2018-05-29 14:14:19		4439211
70	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4531278
71	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4535187
72	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4535265
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4557895
74	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4572052
75	F (uff)	66	23	95	2018-01-22 15:57:03		4621988
76	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4673657
77	Kordyum A. (alko58)	233	0	101	2017-11-21 18:18:43		4711127
78	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4712888
79	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4713956
80	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4751671
81	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4778788
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4811851
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4888496
84	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4935040
85	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4939189
86	F (uff)	66	23	185	2017-06-01 10:27:49		4960717
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		5000590
88	Movlyanov A.P. (Oct)	14	191	218	2017-03-22 18:23:50		5062481
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5297385
90	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5332858
91	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5412081
92	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5542417
93	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5584516
94	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5753936
95	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5785624
96	Sivoglazov M.A. (Gaizenberg)	70	22	261	2015-10-13 23:22:26		5819623
97	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5828984
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	188	2015-09-19 12:34:48		5854830
99	Movlyanov A.P. (Oct)	14	191	194	2015-09-09 14:10:52		5869134
100	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5870820

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