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SQL exercises

May 23, 02:20 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: 15086

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vyazovetskov A.S. (alex_v)	11	223	155	2026-05-22 11:18:23		902
2	Filippkin D.V. (_dimon_)	3	259	24	2026-05-21 10:12:47	2026-05-21 10:19:45	7
3	Vyazovetskov A.S. (alex_v)	11	223	230	2026-05-18 12:59:52	2026-05-20 15:56:52	3057
4	Makarov I.A. (_Bkmz_)	59	29	24	2026-05-16 11:11:27	2026-05-16 11:27:42	16
5	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		10855
6	Vyazovetskov A.S. (alex_v)	11	223	220	2026-05-13 11:51:48	2026-05-14 20:04:14	1932
7	Vyazovetskov A.S. (alex_v)	11	223	225	2026-05-12 11:55:53	2026-05-12 16:20:41	265
8	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		19496
9	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		32555
10	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		42783
11	Vyazovetskov A.S. (alex_v)	11	223	264	2026-04-22 19:15:17		43625
12	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		74337
13	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		167564
14	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		243404
15	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		455107
16	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		576827
17	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		658982
18	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		689230
19	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		701419
20	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		849271
21	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		850579
22	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		873330
23	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		982869
24	Slavutinskij V.V. (Vasilko)	454	0	5	2024-04-22 17:26:35		1094933
25	Slavutinskij V.V. (Vasilko)	454	0	7	2024-04-22 17:26:21		1094934
26	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1124090
27	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1150610
28	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1164242
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1230285
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1233598
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1235988
32	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1268653
33	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1320915
34	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1345492
35	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1662070
36	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1766058
37	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1862223
38	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1901432
39	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2018341
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2164922
41	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2416679
42	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2545031
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2679385
44	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2721571
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2725319
46	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2967385
47	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		3034748
48	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3109078
49	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3174032
50	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3182003
51	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3221517
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3245245
53	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3555634
54	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3582916
55	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3590978
56	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3609261
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3653340
58	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3793315
59	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3891583
60	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3894764
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4036955
62	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4097502
63	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4150861
64	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4198326
65	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4290392
66	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4294302
67	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4294380
68	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4317010
69	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4331167
70	F (uff)	65	25	95	2018-01-22 15:57:03		4381103
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4432771
72	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4470241
73	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4472003
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4473071
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4510786
76	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4537903
77	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4570966
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4647610
79	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4694155
80	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4698304
81	F (uff)	65	25	185	2017-06-01 10:27:49		4719832
82	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4759705
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4821596
84	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5056500
85	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5091973
86	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5171196
87	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5301531
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5343631
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5513051
90	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5544739
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5578738
92	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5588099
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5613945
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5628249
95	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5629935
96	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5641544
97	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5645116
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5648447
99	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5692132
100	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5693399

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