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SQL exercises

June 12, 08:52 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: 15119

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	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		28083
9	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		28109
10	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		40047
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		48688
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		61747
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		71975
14	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		72817
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		103529
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		196756
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		272596
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		484299
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		606020
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		688174
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		718422
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		730611
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		878464
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		879772
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		902522
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1012061
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1124126
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1124126
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1153282
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1179803
31	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1193435
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1259477
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1262791
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1265180
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1297845
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1350108
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1374684
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1691262
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1795251
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1891416
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1930624
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2047534
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2194115
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2445871
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2574223
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2708577
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2750764
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2754511
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2996577
50	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3063940
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3138270
52	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3203224
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3211195
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3250710
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3274437
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3584826
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3612108
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3620170
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3638454
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3682532
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3822507
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3920775
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3923956
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4066147
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4126694
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4180053
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4227518
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4319585
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4323494
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4323573
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4346202
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4360359
73	F (uff)	65	25	95	2018-01-22 15:57:03		4410295
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4461964
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4499434
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4501195
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4502263
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4539978
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4567095
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4600158
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4676803
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4723347
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4727497
84	F (uff)	65	25	185	2017-06-01 10:27:49		4749025
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4788897
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4850789
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5085692
88	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5121165
89	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5200388
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5330724
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5372823
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5542244
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5573931
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5607930
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5617291
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5643138
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5657442
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5659127
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5670737
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5674308

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