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SQL exercises

September 05, 09:04 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: 15161

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
2	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
3	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		11243
4	Vinogradova S.M. (Tigra1)	148	0	135	2026-08-26 09:13:14	2026-08-26 13:14:03	241
5	Vinogradova S.M. (Tigra1)	148	0	134	2026-08-24 15:47:47	2026-08-24 21:53:04	365
6	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		21752
7	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		51571
8	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		54463
9	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		63172
10	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		65940
11	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		116066
12	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		150495
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		184160
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		194388
15	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		195230
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		225941
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		319169
18	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		395009
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		606712
20	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		840835
21	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		853023
22	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1000876
23	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1002184
24	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1024935
25	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1134474
26	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1246538
27	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1246539
28	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1275694
29	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1302215
30	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1315847
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1381889
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1385203
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1387593
34	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1420258
35	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1472520
36	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1497097
37	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1813674
38	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1917663
39	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2013828
40	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2053037
41	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2169946
42	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2316527
43	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2568284
44	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2696636
45	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2830990
46	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2873176
47	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2876924
48	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3118990
49	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3186353
50	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3260683
51	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3325637
52	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3333608
53	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3373122
54	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3396849
55	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3707239
56	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3734521
57	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3742583
58	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3760866
59	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3804945
60	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3944920
61	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4043188
62	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4046368
63	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4188559
64	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4249107
65	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4302466
66	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4349931
67	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4441997
68	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4445906
69	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4445985
70	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4468615
71	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4482771
72	F (uff)	65	25	95	2018-01-22 15:57:03		4532708
73	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4584376
74	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4621846
75	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4623607
76	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4624676
77	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4662391
78	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4689507
79	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4722570
80	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4799215
81	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4845760
82	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4849909
83	F (uff)	65	25	185	2017-06-01 10:27:49		4871437
84	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4911310
85	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4973201
86	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5208105
87	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5243578
88	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5322801
89	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5453136
90	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5495235
91	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5664656
92	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5696344
93	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5730343
94	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5739704
95	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5765550
96	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5779854
97	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5781540
98	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5793149
99	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5796720
100	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5800051

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