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SQL exercises

June 13, 01:58 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: 15120

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	55	35	143	2026-06-12 10:09:54		948
2	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
3	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
4	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
5	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
6	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
7	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
8	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		29108
9	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		29135
10	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		41073
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		49714
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		62773
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		73001
14	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		73843
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		104555
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		197782
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		273622
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		485325
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		607046
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		689200
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		719448
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		731637
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		879490
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		880798
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		903548
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1013087
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1125152
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1125152
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1154308
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1180829
31	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1194460
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1260503
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1263817
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1266206
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1298871
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1351134
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1375710
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1692288
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1796277
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1892441
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1931650
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2048559
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2195141
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2446897
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2575249
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2709603
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2751790
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2755537
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2997603
50	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3064966
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3139296
52	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3204250
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3212221
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3251735
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3275463
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3585852
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3613134
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3621196
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3639479
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3683558
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3823533
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3921801
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3924982
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4067173
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4127720
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4181079
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4228544
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4320610
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4324520
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4324598
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4347228
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4361385
73	F (uff)	65	25	95	2018-01-22 15:57:03		4411321
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4462990
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4500460
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4502221
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4503289
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4541004
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4568121
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4601184
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4677829
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4724373
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4728522
84	F (uff)	65	25	185	2017-06-01 10:27:49		4750050
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4789923
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4851814
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5086718
88	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5122191
89	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5201414
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5331750
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5373849
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5543269
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5574957
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5608956
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5618317
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5644163
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5658467
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5660153
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5671763
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5675334

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