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SQL exercises

June 08, 14:37 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: 15101

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
2	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
3	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
4	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
5	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
6	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
7	Makarov I.A. (_Bkmz_)	55	35	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
8	Vyazovetskov A.S. (alex_v)	7	241	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
9	Vyazovetskov A.S. (alex_v)	7	241	216	2026-05-26 11:29:01	2026-05-27 11:29:15	1440
10	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		22668
11	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		22694
12	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		34632
13	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		43273
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		56332
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		66560
16	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		67402
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		98114
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		191341
19	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		267181
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		478884
21	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		600605
22	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		682759
23	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		713007
24	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		725196
25	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		873049
26	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		874357
27	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		897107
28	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1006646
29	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1118711
30	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1118711
31	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1147867
32	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1174388
33	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1188020
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1254062
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1257376
36	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1259765
37	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1292430
38	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1344693
39	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1369270
40	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1685847
41	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1789836
42	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1886001
43	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1925209
44	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2042119
45	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2188700
46	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2440456
47	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2568808
48	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2703162
49	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2745349
50	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2749096
51	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2991162
52	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3058525
53	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3132855
54	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3197809
55	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3205780
56	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3245295
57	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3269022
58	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3579411
59	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3606693
60	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3614755
61	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3633039
62	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3677117
63	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3817092
64	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3915360
65	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3918541
66	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4060732
67	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4121279
68	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4174638
69	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4222103
70	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4314170
71	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4318079
72	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4318158
73	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4340787
74	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4354944
75	F (uff)	65	25	95	2018-01-22 15:57:03		4404880
76	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4456549
77	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4494019
78	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4495780
79	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4496848
80	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4534563
81	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4561680
82	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4594743
83	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4671388
84	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4717933
85	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4722082
86	F (uff)	65	25	185	2017-06-01 10:27:49		4743610
87	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4783483
88	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4845374
89	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5080277
90	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5115750
91	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5194973
92	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5325309
93	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5367408
94	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5536829
95	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5568516
96	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5602515
97	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5611876
98	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5637723
99	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5652027
100	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5653713

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