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SQL exercises

May 07, 05:53 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: 15090

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
2	Vyazovetskov A.S. (alex_v)	12	211	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
3	Vyazovetskov A.S. (alex_v)	12	211	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
4	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
5	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
6	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
7	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		9728
8	Sarkis'yan G. (gennadi_s)	15	170	200	2026-04-27 16:55:45	2026-04-29 19:00:00	3004
9	Polyakov V.M. (rock_4)	76	15	152	2026-04-16 13:35:42	2026-04-29 17:07:29	18932
10	Vyazovetskov A.S. (alex_v)	12	211	251	2026-04-24 09:27:23	2026-04-24 19:57:36	630
11	Sarkis'yan G. (gennadi_s)	15	170	199	2026-04-23 12:02:01	2026-04-24 15:25:39	1644
12	Koptel'tsev V. (selber)	19	129	212	2026-04-23 19:44:40	2026-04-24 09:01:21	797
13	Komarov A.N. (Shveda Saulya)	37	65	159	2026-04-10 16:59:02	2026-04-24 00:17:20	19158
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		19956
15	Vyazovetskov A.S. (alex_v)	12	211	264	2026-04-22 19:15:17		20798
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		51510
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		144737
18	Lukov D.R. (Gendalf)	246	0	32	2025-12-05 01:36:21		220577
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		432280
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		554001
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		636155
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		666403
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		678592
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		826445
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		827753
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		850503
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		960042
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1072107
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1072107
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1101263
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1127784
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1141415
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1207458
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1210772
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1213161
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1245826
37	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1298089
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1322665
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1639243
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1743232
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1839396
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1878605
43	Lukov D.R. (Gendalf)	246	0	90	2022-07-21 11:18:50		1995514
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2142096
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2393852
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2522204
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2656558
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2698745
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2702492
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2944558
51	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3011921
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3086251
53	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3151205
54	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3159176
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3198690
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3222418
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3532807
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3560089
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3568151
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3586434
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3630513
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3770488
63	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3868756
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3871937
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4014128
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4074675
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4128034
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4175499
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4267565
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4271475
71	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4271553
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4294183
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4308340
74	F (uff)	65	25	95	2018-01-22 15:57:03		4358276
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4409945
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4447414
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4449176
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4450244
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4487959
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4515076
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4548139
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4624784
83	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4671328
84	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4675477
85	F (uff)	65	25	185	2017-06-01 10:27:49		4697005
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4736878
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4798769
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5033673
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5069146
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5148369
91	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5278704
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5320804
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5490224
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5521912
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5555911
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5565272
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5591118
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5605422
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5607108
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5618718

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