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SQL exercises

October 12, 15:13 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		134760
3	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		256481
4	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		330537
5	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		338635
6	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		368883
7	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		381072
8	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		528925
9	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		530233
10	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		552983
11	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		580423
12	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		662522
13	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		774587
14	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		774587
15	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		803743
16	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		830264
17	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		843895
18	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		909938
19	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		913252
20	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		915641
21	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		948306
22	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		993482
23	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1000569
24	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1025145
25	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1270177
26	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1307733
27	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1341723
28	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1445712
29	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1541876
30	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1581085
31	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1697994
32	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1844576
33	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1958625
34	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2096332
35	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2224684
36	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2359038
37	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2401225
38	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2404972
39	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2647038
40	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2714401
41	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2788731
42	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2853685
43	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2861656
44	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2901170
45	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2924898
46	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3235287
47	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3262569
48	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3270631
49	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3288914
50	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3332993
51	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3472968
52	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3571236
53	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3574417
54	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3716608
55	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3777155
56	Voevutskij S.A. (SergLK)	212	0	45	2018-07-01 13:19:14		3830514
57	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3877979
58	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3970046
59	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3973955
60	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3974033
61	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3996663
62	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4010820
63	F (uff)	65	25	95	2018-01-22 15:57:03		4060756
64	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4112425
65	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4149895
66	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4151656
67	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4152724
68	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4190439
69	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4217556
70	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4250619
71	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4327264
72	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4373808
73	Vorob'ev E.V. (Johnnymnemonic)	159	0	138	2017-06-16 09:15:49		4377957
74	F (uff)	65	25	185	2017-06-01 10:27:49		4399485
75	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4439358
76	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4501249
77	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4736153
78	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4771626
79	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4850849
80	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4981185
81	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5023284
82	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5192704
83	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5224392
84	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5258391
85	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5267752
86	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5293598
87	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5307902
88	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5309588
89	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5321198
90	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5324769
91	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5328100
92	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5371785
93	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5373052
94	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5381614
95	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5391344
96	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5399971
97	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5630410
98	Skorohod I. (Dracul4ik)	78	15	252	2015-01-27 11:56:41		5632037
99	Sysoev A.V. (Sysa)	49	39	143	2014-12-25 01:16:19		5680197
100	Grishin (alvigr)	79	15	185	2014-12-05 11:56:29		5708357

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