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SQL exercises

October 06, 05:18 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: 13881

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Filippkin D.V. (_dimon_)	3	259	240	2026-10-05 14:13:38		905
2	Safronov P.A. (Paulus73)	135	0	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
3	Vinogradova S.M. (Tigra1)	124	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
4	Vinogradova S.M. (Tigra1)	124	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
5	Filippkin D.V. (_dimon_)	3	259	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
6	Kostomarov A.V. (al29)	5	247	53	2026-09-30 08:53:59		8424
7	Vinogradova S.M. (Tigra1)	124	4	53	2026-09-27 16:28:34	2026-09-27 18:57:12	149
8	Sigankov V.I. (vasilyvanc)	33	74	53	2026-09-23 14:18:31	2026-09-27 11:56:35	5618
9	Sarkis'yan G. (gennadi_s)	14	187	303	2026-09-26 14:18:02	2026-09-26 14:40:37	23
10	Koptel'tsev V. (selber)	19	133	53	2026-09-20 05:35:11	2026-09-23 22:59:05	5364
11	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		41587
12	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		55656
13	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		66165
14	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		95985
15	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		98877
16	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		107585
17	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		110353
18	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		160479
19	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		194909
20	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		228573
21	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		238801
22	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		239643
23	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		270355
24	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		363582
25	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		439422
26	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		651125
27	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		885248
28	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		897437
29	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1045290
30	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1046598
31	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1069348
32	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1178887
33	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1290952
34	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1290952
35	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1320108
36	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1346629
37	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1360260
38	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1426303
39	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1429617
40	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1432006
41	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1464671
42	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1516934
43	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1541510
44	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1858088
45	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1962077
46	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2058241
47	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2097450
48	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2214360
49	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2360941
50	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2612697
51	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2741049
52	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2875403
53	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2917590
54	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2921337
55	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3163403
56	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3230766
57	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3305096
58	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3370050
59	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3378021
60	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3417536
61	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3441263
62	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3751652
63	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3778934
64	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3786996
65	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3805279
66	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3849358
67	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3989333
68	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4087601
69	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4090782
70	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4232973
71	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4293520
72	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4346879
73	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4394344
74	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4486411
75	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4490320
76	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4490398
77	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4513028
78	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4527185
79	F (uff)	65	25	95	2018-01-22 15:57:03		4577121
80	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4628790
81	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4666260
82	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4668021
83	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4669089
84	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4706804
85	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4733921
86	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4766984
87	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4843629
88	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4890173
89	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4894323
90	F (uff)	65	25	185	2017-06-01 10:27:49		4915851
91	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4955723
92	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		5017615
93	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5252518
94	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5287991
95	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5367214
96	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5497550
97	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5539649
98	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5709069
99	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5740757
100	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5774756

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