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SQL exercises

October 12, 17:51 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: 15176

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	20	119	181	2025-09-06 14:04:35	2025-10-06 15:31:50	43287
2	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		134918
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		256639
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		330695
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		338793
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		369041
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		381230
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		529083
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		530391
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		553141
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		580581
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		662680
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		774745
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		774745
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		803901
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		830422
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		844053
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		910096
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		913410
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		915799
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		948464
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		993640
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1000727
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1025303
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1270335
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1307891
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1341881
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1445870
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1542034
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1581243
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1698152
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1844734
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1958783
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2096490
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2224842
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2359196
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2401383
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2405130
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2647196
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2714559
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2788889
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2853843
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2861814
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2901328
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2925056
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3235445
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3262727
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3270789
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3289072
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3333151
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3473126
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3571394
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3574575
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3716766
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3777313
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3830672
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3878137
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3970204
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3974113
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3974191
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3996821
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4010978
63	F (uff)	65	25	95	2018-01-22 15:57:03		4060914
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4112583
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4150053
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4151814
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4152882
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4190597
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4217714
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4250777
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4327422
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4373966
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4378115
74	F (uff)	65	25	185	2017-06-01 10:27:49		4399643
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4439516
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4501407
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4736311
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4771784
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4851007
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4981343
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5023442
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5192862
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5224550
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5258549
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5267910
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5293756
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5308060
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5309746
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5321356
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5324927
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5328258
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5371943
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5373210
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5381772
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5391502
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5400129
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5630568
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5632195
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5680355
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5708515

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