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SQL exercises

August 13, 01:44 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: 15148

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	180	205	2026-08-07 13:45:21	2026-08-10 17:09:13	4524
2	Sarkis'yan G. (gennadi_s)	15	180	204	2026-08-04 12:34:26	2026-08-04 13:41:32	67
3	Koptel'tsev V. (selber)	19	133	198	2026-07-12 02:54:38	2026-07-31 20:31:37	28417
4	Williams B. (BW)	35	67	252	2026-07-31 13:33:49		18011
5	Williams B. (BW)	35	67	236	2026-07-29 13:21:56	2026-07-31 13:32:08	2890
6	Williams B. (BW)	35	67	264	2026-07-29 13:21:27		20904
7	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		29612
8	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		32380
9	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		82506
10	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		116935
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		137541
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		150600
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		160828
14	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		161670
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		192382
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		285609
17	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		361449
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		573152
19	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		807275
20	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		819464
21	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		967316
22	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		968624
23	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		991375
24	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1100914
25	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1212978
26	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1212979
27	Williams B. (BW)	35	67	141	2024-04-02 11:30:28		1242135
28	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1268655
29	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1282287
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1348329
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1351643
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1354033
33	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1386698
34	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1438960
35	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1463537
36	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1780115
37	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1884103
38	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		1980268
39	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2019477
40	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2136386
41	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2282967
42	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2534724
43	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2663076
44	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2797430
45	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2839616
46	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2843364
47	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3085430
48	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3152793
49	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3227123
50	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3292077
51	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3300048
52	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3339562
53	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3363289
54	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3673679
55	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3700961
56	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3709023
57	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3727306
58	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3771385
59	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3911360
60	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4009628
61	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4012809
62	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4155000
63	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4215547
64	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4268906
65	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4316371
66	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4408437
67	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4412346
68	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4412425
69	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4435055
70	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4449211
71	F (uff)	65	25	95	2018-01-22 15:57:03		4499148
72	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4550816
73	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4588286
74	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4590047
75	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4591116
76	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4628831
77	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4655948
78	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4689010
79	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4765655
80	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4812200
81	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4816349
82	F (uff)	65	25	185	2017-06-01 10:27:49		4837877
83	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4877750
84	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4939641
85	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5174545
86	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5210018
87	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5289241
88	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5419576
89	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5461675
90	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5631096
91	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5662784
92	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5696783
93	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5706144
94	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5731990
95	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5746294
96	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5747980
97	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5759589
98	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5763160
99	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5766492
100	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5810177

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