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SQL exercises

July 07, 00:33 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: 15114

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	67	23	177	2025-07-06 09:38:39	2025-07-06 11:56:40	138
2	Makarov I.A. (_Bkmz_)	67	23	166	2025-07-05 10:06:56	2025-07-05 10:51:15	44
3	Sarkis'yan G. (gennadi_s)	24	99	175	2025-07-04 14:31:46		3482
4	Sarkis'yan G. (gennadi_s)	24	99	174	2025-06-29 14:46:07	2025-06-30 13:01:05	1335
5	Makarov I.A. (_Bkmz_)	67	23	170	2025-06-29 10:21:01	2025-06-29 12:50:43	150
6	Makarov I.A. (_Bkmz_)	67	23	204	2025-06-28 10:03:44	2025-06-28 12:34:50	151
7	Sarkis'yan G. (gennadi_s)	24	99	173	2025-06-22 15:29:39	2025-06-27 10:00:13	6871
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		115921
9	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		189977
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		198076
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		228324
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		240512
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		388365
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		389673
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		412424
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		439864
17	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		521963
18	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		634027
19	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		634028
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		663183
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		689704
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		703336
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		769378
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		772692
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		775082
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		807747
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		852922
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		860009
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		884586
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1129618
31	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1167174
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1201163
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1305152
34	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1401317
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1440526
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1557435
37	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1704016
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1818066
39	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1955773
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2084125
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2218479
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2260665
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2264413
44	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2506479
45	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2573842
46	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2648172
47	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2713126
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2721096
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2760611
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2784338
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3094728
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3122010
53	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3130072
54	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3148355
55	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3192434
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3332409
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3430676
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3433857
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3576048
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3636595
61	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3689955
62	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3737420
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3829486
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3833395
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3833474
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3856104
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3870260
68	F (uff)	64	25	95	2018-01-22 15:57:03		3920197
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3971865
70	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4009335
71	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4011096
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4012165
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4049880
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4076996
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4110059
76	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4186704
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4233249
78	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4237398
79	F (uff)	64	25	185	2017-06-01 10:27:49		4258926
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4298799
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4360690
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4595594
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4631066
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4710290
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4840625
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4882724
87	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		5052145
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5083833
89	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5117831
90	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5127193
91	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5153039
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5167343
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5169029
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5180638
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5184209
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5187540
97	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5231226
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5232493
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5241055
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5250785

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