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SQL exercises

November 16, 20:54 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: 15219

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	128	186	2025-11-12 16:36:56	2025-11-14 15:14:47	2798
2	Sarkis'yan G. (gennadi_s)	19	128	185	2025-11-08 14:38:59	2025-11-10 12:02:03	2723
3	Sarkis'yan G. (gennadi_s)	19	128	184	2025-10-30 12:40:58	2025-11-07 11:56:37	11476
4	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		185502
5	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		307222
6	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		381278
7	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		389377
8	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		419625
9	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		431813
10	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		579666
11	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		580974
12	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		603725
13	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		631165
14	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		713263
15	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		825328
16	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		825328
17	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		854484
18	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		881005
19	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		894637
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		960679
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		963993
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		966383
23	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		999048
24	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1044223
25	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1051310
26	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1075887
27	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1320919
28	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1358475
29	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1392464
30	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1496453
31	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1592618
32	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1631827
33	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1748736
34	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1895317
35	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2147074
36	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2275426
37	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2409780
38	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2451966
39	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2455714
40	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2697780
41	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2765143
42	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2839473
43	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2904427
44	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2912397
45	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2951912
46	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2975639
47	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3286029
48	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3313311
49	Romanov K.Yu. (kostik)	307	0	12	2019-07-25 08:42:10		3321373
50	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3339656
51	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3383734
52	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3523710
53	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3621977
54	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3625158
55	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3767349
56	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3827896
57	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3881256
58	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3928721
59	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4020787
60	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4024696
61	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4024775
62	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4047404
63	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4061561
64	F (uff)	65	25	95	2018-01-22 15:57:03		4111498
65	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4163166
66	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4200636
67	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4202397
68	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4203466
69	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4241180
70	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4268297
71	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4301360
72	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4378005
73	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4424550
74	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4428699
75	F (uff)	65	25	185	2017-06-01 10:27:49		4450227
76	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4490100
77	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4551991
78	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4786895
79	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4822367
80	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4901591
81	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5031926
82	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5074025
83	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5243446
84	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5275134
85	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5309132
86	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5318494
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5344340
88	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5358644
89	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5360330
90	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5371939
91	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5375510
92	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5378841
93	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5422527
94	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5423794
95	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5432356
96	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5442086
97	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5450713
98	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5681152
99	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5682778
100	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5730939

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