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SQL exercises

August 30, 16:43 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: 15152

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		3062
2	Sarkis'yan G. (gennadi_s)	14	184	206	2026-08-15 14:26:50	2026-08-21 15:41:57	8715
3	Frolov K.A. (Murderface_)	135	0	24	2026-08-21 11:04:04	2026-08-21 11:17:39	14
4	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		13571
5	Komarov A.N. (Shveda Saulya)	35	68	160	2026-05-09 13:24:21	2026-08-20 17:24:55	148561
6	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		43390
7	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		46282
8	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		54991
9	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		57758
10	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		107885
11	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		142314
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		175978
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		186206
14	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		187048
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		217760
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		310987
17	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		386827
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		598531
19	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		832654
20	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		844842
21	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		992695
22	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		994003
23	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1016754
24	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1126292
25	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1238357
26	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1238357
27	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1267513
28	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1294034
29	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1307666
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1373708
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1377022
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1379412
33	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1412076
34	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1464339
35	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1488916
36	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1805493
37	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1909482
38	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2005647
39	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2044855
40	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2161765
41	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2308346
42	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2560103
43	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2688455
44	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2822809
45	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2864995
46	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2868742
47	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3110809
48	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3178171
49	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3252502
50	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3317456
51	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3325426
52	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3364941
53	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3388668
54	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3699057
55	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3726339
56	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3734401
57	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3752685
58	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3796763
59	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3936738
60	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4035006
61	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4038187
62	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4180378
63	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4240925
64	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4294284
65	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4341749
66	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4433816
67	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4437725
68	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4437804
69	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4460433
70	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4474590
71	F (uff)	65	25	95	2018-01-22 15:57:03		4524527
72	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4576195
73	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4613665
74	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4615426
75	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4616494
76	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4654209
77	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4681326
78	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4714389
79	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4791034
80	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4837579
81	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4841728
82	F (uff)	65	25	185	2017-06-01 10:27:49		4863256
83	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4903129
84	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4965020
85	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5199923
86	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5235396
87	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5314620
88	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5444955
89	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5487054
90	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5656475
91	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5688162
92	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5722161
93	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5731523
94	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5757369
95	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5771673
96	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5773359
97	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5784968
98	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5788539
99	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5791870
100	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5835556

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