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SQL exercises

April 04, 00:57 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		3694
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		13859
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		96922
11	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		172761
12	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		384465
13	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		506185
14	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		588340
15	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		618588
16	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		630776
17	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		778629
18	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		779937
19	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		802688
20	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		912226
21	Slavutinskij V.V. (Vasilko)	453	0	5	2024-04-22 17:26:35		1024291
22	Slavutinskij V.V. (Vasilko)	453	0	7	2024-04-22 17:26:21		1024291
23	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1053447
24	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1079968
25	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1093600
26	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1159642
27	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1162956
28	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1165346
29	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1198011
30	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1250273
31	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1274850
32	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1591427
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1695416
34	Koptel'tsev V. (selber)	20	122	237	2022-11-06 21:16:51		1791581
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1830789
36	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		1947699
37	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2094280
38	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2346037
39	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2474389
40	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2608743
41	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2650929
42	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2654677
43	Kozharinov A. (bubala)	211	0	10	2020-09-30 09:55:07		2896743
44	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2964106
45	Koptel'tsev V. (selber)	20	122	259	2020-06-24 00:22:07		3038436
46	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3103390
47	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3111360
48	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3150875
49	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3174602
50	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3484992
51	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3512274
52	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3520336
53	Kordyum A. (alko58)	229	0	12	2019-07-12 15:58:52		3538619
54	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3582697
55	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3722672
56	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3820940
57	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3824121
58	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3966312
59	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		4026859
60	Voevutskij S.A. (SergLK)	217	0	45	2018-07-01 13:19:14		4080219
61	Zyrin V.E. (Vezyr)	544	0	29	2018-05-29 14:14:19		4127683
62	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4219750
63	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4223659
64	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4223738
65	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4246367
66	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4260524
67	F (uff)	65	25	95	2018-01-22 15:57:03		4310461
68	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4362129
69	Kordyum A. (alko58)	229	0	101	2017-11-21 18:18:43		4399599
70	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4401360
71	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4402428
72	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4440143
73	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4467260
74	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4500323
75	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4576968
76	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4623513
77	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4627662
78	F (uff)	65	25	185	2017-06-01 10:27:49		4649190
79	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4689063
80	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4750954
81	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4985858
82	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5021330
83	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5100554
84	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5230889
85	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5272988
86	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5442409
87	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5474096
88	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5508095
89	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5517457
90	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5543303
91	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5557607
92	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5559293
93	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5570902
94	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5574473
95	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5577804
96	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5621490
97	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5622757
98	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5631319
99	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5641049
100	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5649676

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