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SQL exercises

May 13, 23:35 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: 15093

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	218	220	2026-05-13 11:51:48		703
2	Vyazovetskov A.S. (alex_v)	11	218	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
3	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		6371
4	Vyazovetskov A.S. (alex_v)	11	218	217	2026-05-08 10:20:20	2026-05-08 13:08:42	168
5	Vyazovetskov A.S. (alex_v)	11	218	232	2026-05-07 10:40:43	2026-05-07 16:36:28	356
6	Sarkis'yan G. (gennadi_s)	15	170	201	2026-05-06 17:02:11	2026-05-06 21:59:40	297
7	Vyazovetskov A.S. (alex_v)	11	218	160	2026-05-06 10:59:16	2026-05-06 17:58:52	420
8	Vyazovetskov A.S. (alex_v)	11	218	233	2026-05-05 16:32:39	2026-05-05 21:01:23	269
9	Koptel'tsev V. (selber)	19	129	147	2026-04-27 19:09:38	2026-05-05 18:01:02	11451
10	Varenikov D.M. (Dmitriy Varenikov)	20	128	24	2026-05-03 22:31:13	2026-05-03 22:51:54	21
11	Karasyova N.V. (vlksm)	9	225	24	2026-05-01 17:08:12	2026-05-01 17:42:21	34
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		19430
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		29658
14	Vyazovetskov A.S. (alex_v)	11	218	264	2026-04-22 19:15:17		30500
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		61212
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		154439
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		230279
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		441982
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		563703
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		645857
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		676105
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		688294
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		836147
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		837455
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		860205
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		969744
27	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1081809
28	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1081809
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1110965
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1137486
31	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1151117
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1217160
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1220474
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1222863
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1255528
36	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1307791
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1332367
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1648945
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1752934
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1849098
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1888307
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2005216
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2151798
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2403554
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2531906
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2666260
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2708447
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2712194
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2954260
50	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3021623
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3095953
52	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3160907
53	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3168878
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3208392
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3232120
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3542509
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3569791
58	Romanov K.Yu. (kostik)	311	0	12	2019-07-25 08:42:10		3577853
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3596136
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3640215
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3780190
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3878458
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3881639
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4023830
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4084377
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4137736
67	Zyrin V.E. (Vezyr)	548	0	29	2018-05-29 14:14:19		4185201
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4277267
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4281177
70	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4281255
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4303885
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4318042
73	F (uff)	65	25	95	2018-01-22 15:57:03		4367978
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4419647
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4457116
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4458878
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4459946
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4497661
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4524778
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4557841
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4634486
82	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4681030
83	Vorob'ev E.V. (Johnnymnemonic)	162	0	138	2017-06-16 09:15:49		4685179
84	F (uff)	65	25	185	2017-06-01 10:27:49		4706707
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4746580
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4808471
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5043375
88	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5078848
89	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5158071
90	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5288406
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5330506
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5499926
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5531614
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5565613
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5574974
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5600820
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5615124
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5616810
99	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5628420
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5631991

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