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SQL exercises

April 04, 07:15 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: 15046

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	262	24	2026-04-03 23:24:48	2026-04-03 23:24:51	0
2	Polyakov V.M. (rock_4)	116	6	148	2026-04-01 11:23:28		4072
3	Polyakov V.M. (rock_4)	116	6	140	2026-03-31 09:33:07	2026-04-01 10:33:47	1501
4	Polyakov V.M. (rock_4)	116	6	256	2026-03-25 09:59:37	2026-03-30 17:47:18	7668
5	Sarkis'yan G. (gennadi_s)	15	156	195	2026-03-23 13:36:04	2026-03-29 14:18:04	8682
6	Polyakov V.M. (rock_4)	116	6	142	2026-03-26 09:29:52	2026-03-27 15:24:51	1795
7	Polyakov V.M. (rock_4)	116	6	139	2026-03-24 13:03:07	2026-03-25 16:32:20	1649
8	Polyakov V.M. (rock_4)	116	6	254	2026-03-25 09:58:47		14236
9	Polyakov V.M. (rock_4)	116	6	138	2026-02-20 17:03:21	2026-03-24 11:15:38	45732
10	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		97299
11	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		173139
12	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		384842
13	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		506562
14	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		588717
15	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		618965
16	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		631154
17	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		779006
18	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		780314
19	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		803065
20	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		912604
21	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		1024668
22	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		1024669
23	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1053825
24	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1080345
25	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1093977
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1160020
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1163333
28	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1165723
29	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1198388
30	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1250650
31	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1275227
32	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1591805
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1695793
34	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1791958
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1831167
36	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1948076
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2094657
38	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2346414
39	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2474766
40	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2609120
41	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2651306
42	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2655054
43	Kozharinov A. (bubala)	211	0	10	2020-09-30 09:55:07		2897120
44	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2964483
45	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3038813
46	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3103767
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3111738
48	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3151252
49	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3174980
50	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3485369
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3512651
52	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3520713
53	Kordyum A. (alko58)	229	0	12	2019-07-12 15:58:52		3538996
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3583075
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3723050
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3821318
57	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3824499
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3966690
59	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		4027237
60	Voevutskij S.A. (SergLK)	217	0	45	2018-07-01 13:19:14		4080596
61	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4128061
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4220127
63	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4224037
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4224115
65	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4246745
66	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4260902
67	F (uff)	65	25	95	2018-01-22 15:57:03		4310838
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4362506
69	Kordyum A. (alko58)	229	0	101	2017-11-21 18:18:43		4399976
70	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4401738
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4402806
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4440521
73	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4467638
74	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4500701
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4577345
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4623890
77	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4628039
78	F (uff)	65	25	185	2017-06-01 10:27:49		4649567
79	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4689440
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4751331
81	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4986235
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5021708
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5100931
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5231266
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5273366
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5442786
87	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5474474
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5508473
89	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5517834
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5543680
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5557984
92	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5559670
93	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5571279
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5574851
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5578182
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5621867
97	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5623134
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5631696
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5641426
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5650053

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