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SQL exercises

May 30, 07:23 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: 15091

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	29	91	171	2025-05-26 13:59:15		5364
2	Sarkis'yan G. (gennadi_s)	29	91	170	2025-05-24 14:28:57	2025-05-25 11:20:34	1252
3	Makarov I.A. (_Bkmz_)	93	9	132	2025-05-24 09:32:58	2025-05-24 15:24:39	352
4	Sarkis'yan G. (gennadi_s)	29	91	169	2025-05-10 14:31:13	2025-05-18 13:39:46	11469
5	Makarov I.A. (_Bkmz_)	93	9	133	2025-05-17 10:35:27	2025-05-17 14:19:16	224
6	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		61611
7	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		135667
8	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		143765
9	Chuvstvin M. (chuvstvinmaxim)	87	11	141	2025-01-29 11:09:56		174013
10	Chuvstvin M. (chuvstvinmaxim)	87	11	258	2025-01-21 00:01:28		186202
11	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		334055
12	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		335363
13	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		358113
14	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		385554
15	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		467652
16	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		579717
17	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		579717
18	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		608873
19	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		635394
20	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		649026
21	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		715068
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		718382
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		720771
24	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		753436
25	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		798612
26	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		805699
27	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		830276
28	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1075307
29	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1112863
30	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1146853
31	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1250842
32	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1347007
33	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1386215
34	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1503125
35	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1649706
36	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1763755
37	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1901462
38	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2029814
39	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2164168
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2206355
41	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2210102
42	Kozharinov A. (bubala)	205	0	10	2020-09-30 09:55:07		2452168
43	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2519531
44	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2593861
45	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2658815
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2666786
47	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2706301
48	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2730028
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3040417
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3067699
51	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3075761
52	Kordyum A. (alko58)	223	0	12	2019-07-12 15:58:52		3094045
53	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3138123
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3278098
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3376366
56	Grishunin M.F. (MikhailFG)	91	10	144	2018-12-26 09:36:27		3379547
57	Shindin A.V. (AlShin)	24	99	45	2018-09-18 15:45:28		3521738
58	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3582285
59	Voevutskij S.A. (SergLK)	210	0	45	2018-07-01 13:19:14		3635644
60	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3683109
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3775176
62	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3779085
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3779164
64	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3801793
65	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3815950
66	F (uff)	64	25	95	2018-01-22 15:57:03		3865886
67	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3917555
68	Kordyum A. (alko58)	223	0	101	2017-11-21 18:18:43		3955025
69	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		3956786
70	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3957854
71	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3995569
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4022686
73	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		4055749
74	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4132394
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4178939
76	Vorob'ev E.V. (Johnnymnemonic)	157	0	138	2017-06-16 09:15:49		4183088
77	F (uff)	64	25	185	2017-06-01 10:27:49		4204616
78	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4244489
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4306380
80	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4541283
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4576756
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4655979
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4786315
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4828414
85	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4997835
86	Maslyaev V.S. (Velmont)	89	11	170	2015-11-06 14:01:20		5029522
87	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5063521
88	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5072882
89	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5098729
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5113033
91	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		5114718
92	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5126328
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5129899
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5133230
95	Maslyaev V.S. (Velmont)	89	11	140	2015-07-27 05:27:50		5176916
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5178183
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5186744
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5196474
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5205101
100	Skorohod I. (Dracul4ik)	77	15	256	2015-01-28 15:03:11		5435540

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