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SQL exercises

February 06, 00:40 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: 15388

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	43	52	149	2023-05-14 13:36:07	2026-02-05 21:16:28	1437580
2	Sarkis'yan G. (gennadi_s)	16	147	193	2026-02-02 14:48:13		4912
3	Sarkis'yan G. (gennadi_s)	16	147	192	2026-01-29 14:47:50	2026-01-29 16:40:41	113
4	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		14824
5	Sarkis'yan G. (gennadi_s)	16	147	191	2026-01-19 15:25:23	2026-01-25 17:31:40	8766
6	Fomichev A.V. (Fomichev)	196	0	7	2025-02-25 02:16:37	2026-01-24 00:54:53	479438
7	Lukov D.R. (Gendalf)	243	0	32	2025-12-05 01:36:21		90664
8	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		302368
9	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		424088
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		506243
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		536491
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		548679
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		696532
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		697840
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		720591
16	Komarov A.N. (Shveda Saulya)	43	52	157	2024-09-04 13:29:47		748031
17	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		830129
18	Slavutinskij V.V. (Vasilko)	451	0	5	2024-04-22 17:26:35		942194
19	Slavutinskij V.V. (Vasilko)	451	0	7	2024-04-22 17:26:21		942194
20	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		971350
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		997871
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1011503
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1077545
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1080859
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1083249
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		1115914
27	Komarov A.N. (Shveda Saulya)	43	52	150	2023-11-22 17:11:28		1161089
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1168176
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1192753
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1475340
31	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1509330
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1613319
33	Koptel'tsev V. (selber)	21	119	237	2022-11-06 21:16:51		1709484
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1748692
35	Lukov D.R. (Gendalf)	243	0	90	2022-07-21 11:18:50		1865602
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2012183
37	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2263940
38	Fedevych V.I. (labuch_fedev)	37	65	221	2021-07-20 17:09:05		2392292
39	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2526646
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2568832
41	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2572580
42	Kozharinov A. (bubala)	208	0	10	2020-09-30 09:55:07		2814646
43	Samarin A. (not.yet.sql.master)	144	0	112	2020-08-14 15:12:10		2882009
44	Koptel'tsev V. (selber)	21	119	259	2020-06-24 00:22:07		2956339
45	Samarin A. (not.yet.sql.master)	144	0	138	2020-05-09 21:48:04		3021293
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		3029263
47	Fedevych V.I. (labuch_fedev)	37	65	226	2020-04-06 22:22:48		3068778
48	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3092505
49	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3402894
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3430176
51	Romanov K.Yu. (kostik)	308	0	12	2019-07-25 08:42:10		3438239
52	Kordyum A. (alko58)	225	0	12	2019-07-12 15:58:52		3456522
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3500600
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3640575
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3738843
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3742024
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3884215
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3944762
59	Voevutskij S.A. (SergLK)	214	0	45	2018-07-01 13:19:14		3998121
60	Zyrin V.E. (Vezyr)	543	0	29	2018-05-29 14:14:19		4045586
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4137653
62	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4141562
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4141641
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4164270
65	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4178427
66	F (uff)	65	25	95	2018-01-22 15:57:03		4228364
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4280032
68	Kordyum A. (alko58)	225	0	101	2017-11-21 18:18:43		4317502
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4319263
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4320331
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4358046
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4385163
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4418226
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4494871
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4541416
76	Vorob'ev E.V. (Johnnymnemonic)	161	0	138	2017-06-16 09:15:49		4545565
77	F (uff)	65	25	185	2017-06-01 10:27:49		4567093
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4606966
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4668857
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4903760
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4939233
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5018457
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5148792
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5190891
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5360312
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5391999
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5425998
88	Fomichev A.V. (Fomichev)	196	0	101	2015-10-07 11:21:04		5435360
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5461206
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5475510
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5477196
92	Varenikov D.M. (Dmitriy Varenikov)	19	128	263	2015-08-31 08:35:37		5488805
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5492376
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5495707
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5539393
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5540660
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5549222
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5558952
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5567579
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5798017

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