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SQL exercises

April 02, 02:03 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: 15420

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Polyakov V.M. (rock_4)	116	6	148	2026-04-01 11:23:28		880
2	Polyakov V.M. (rock_4)	116	6	140	2026-03-31 09:33:07	2026-04-01 10:33:47	1501
3	Polyakov V.M. (rock_4)	116	6	256	2026-03-25 09:59:37	2026-03-30 17:47:18	7668
4	Sarkis'yan G. (gennadi_s)	15	156	195	2026-03-23 13:36:04	2026-03-29 14:18:04	8682
5	Polyakov V.M. (rock_4)	116	6	142	2026-03-26 09:29:52	2026-03-27 15:24:51	1795
6	Polyakov V.M. (rock_4)	116	6	139	2026-03-24 13:03:07	2026-03-25 16:32:20	1649
7	Polyakov V.M. (rock_4)	116	6	254	2026-03-25 09:58:47		11045
8	Polyakov V.M. (rock_4)	116	6	138	2026-02-20 17:03:21	2026-03-24 11:15:38	45732
9	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		94107
10	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		169947
11	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		381650
12	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		503371
13	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		585525
14	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		615773
15	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		627962
16	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		775815
17	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		777123
18	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		799873
19	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		909412
20	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		1021477
21	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		1021477
22	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1050633
23	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1077154
24	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1090786
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1156828
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1160142
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1162531
28	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1195196
29	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1247459
30	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1272035
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1588613
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1692602
33	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1788767
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1827975
35	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1944885
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2091466
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2343222
38	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2471574
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2605928
40	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2648115
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2651862
42	Kozharinov A. (bubala)	211	0	10	2020-09-30 09:55:07		2893928
43	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2961291
44	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3035621
45	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3100575
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3108546
47	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3148061
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3171788
49	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3482177
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3509459
51	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3517521
52	Kordyum A. (alko58)	229	0	12	2019-07-12 15:58:52		3535805
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3579883
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3719858
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3818126
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3821307
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3963498
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		4024045
59	Voevutskij S.A. (SergLK)	217	0	45	2018-07-01 13:19:14		4077404
60	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4124869
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4216936
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4220845
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4220924
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4243553
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4257710
66	F (uff)	65	25	95	2018-01-22 15:57:03		4307646
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4359315
68	Kordyum A. (alko58)	229	0	101	2017-11-21 18:18:43		4396785
69	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4398546
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4399614
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4437329
72	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4464446
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4497509
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4574154
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4620698
76	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4624848
77	F (uff)	65	25	185	2017-06-01 10:27:49		4646376
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4686248
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4748140
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4983043
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5018516
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5097739
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5228075
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5270174
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5439595
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5471282
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5505281
88	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5514642
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5540489
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5554793
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5556478
92	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5568088
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5571659
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5574990
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5618676
96	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5619943
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5628504
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5638234
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5646861
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5877300

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