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SQL exercises

December 09, 02:27 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: 14386

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Komarov A.N. (Shveda Saulya)	56	31	150	2023-11-22 17:11:28		23596
2	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		30683
3	Rudikov E. (cubie)	130	0	138	2023-10-31 17:27:54		55260
4	Komarov A.N. (Shveda Saulya)	56	31	149	2023-05-14 13:36:07		300292
5	Zajtsev V.S. (Sleeping)	20	109	150	2023-04-18 11:40:16		337847
6	Shkarednyj I.N. (Gosha)	33	66	198	2023-03-25 21:10:27		371837
7	Latyntsev N.G. (aks_nsk)	51	37	255	2023-01-12 16:01:39		475826
8	Koptel'tsev V. (selber)	25	95	237	2022-11-06 21:16:51		571991
9	Borisenkov D.V. (xuser)	94	9	173	2022-10-10 15:48:20		611199
10	Lukov D.R. (Gendalf)	228	0	90	2022-07-21 11:18:50		728109
11	Pavlov A.V. (Anton)	58	29	141	2022-04-10 16:17:39		874690
12	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		988740
13	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1126447
14	Fedevych V.I. (labuch_fedev)	34	65	221	2021-07-20 17:09:05		1254799
15	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1389153
16	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1431339
17	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1435087
18	Kozharinov A. (bubala)	193	0	10	2020-09-30 09:55:07		1677153
19	Samarin A. (not.yet.sql.master)	132	0	112	2020-08-14 15:12:10		1744516
20	Koptel'tsev V. (selber)	25	95	259	2020-06-24 00:22:07		1818846
21	Samarin A. (not.yet.sql.master)	132	0	138	2020-05-09 21:48:04		1883800
22	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		1891770
23	Fedevych V.I. (labuch_fedev)	34	65	226	2020-04-06 22:22:48		1931285
24	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		1955012
25	Williams B. (BW)	36	63	233	2019-11-20 18:28:22		2130239
26	Fokin A. (Vizitor )	42	52	217	2019-08-18 21:46:14		2265401
27	Bazavluk M. (DoNotLook)	92	9	141	2019-07-30 23:04:12		2292684
28	Romanov K.Yu. (kostik)	287	0	12	2019-07-25 08:42:10		2300746
29	Kordyum A. (alko58)	210	0	12	2019-07-12 15:58:52		2319029
30	Pavlov A.V. (Anton)	58	29	168	2019-06-12 01:20:21		2363107
31	Mal'tsev A.V. (Palkin)	108	8	218	2019-03-06 20:25:17		2503082
32	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		2601350
33	Grishunin M.F. (MikhailFG)	88	10	144	2018-12-26 09:36:27		2604531
34	Williams B. (BW)	36	63	222	2018-10-25 12:18:14		2693649
35	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		2746722
36	Skorohod I. (Dracul4ik)	75	15	45	2018-08-07 14:38:23		2807269
37	Voevutskij S.A. (SergLK)	196	0	45	2018-07-01 13:19:14		2860628
38	Zyrin V.E. (Vezyr)	507	0	29	2018-05-29 14:14:19		2908093
39	Zajtsev V.S. (Sleeping)	20	109	226	2018-04-05 11:18:07		2986030
40	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3000160
41	Shkarednyj I.N. (Gosha)	33	66	151	2018-03-23 22:38:32		3004069
42	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3004148
43	Azbel' E.G. (enull)	74	15	148	2018-03-08 04:10:21		3026777
44	Shkarednyj I.N. (Gosha)	33	66	147	2018-02-26 08:13:30		3040934
45	F (uff)	63	25	95	2018-01-22 15:57:03		3090871
46	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3142539
47	Kordyum A. (alko58)	210	0	101	2017-11-21 18:18:43		3180009
48	Zajtsev V.S. (Sleeping)	20	109	190	2017-11-20 12:57:31		3181770
49	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3182838
50	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3220553
51	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3247670
52	Skorohod I. (Dracul4ik)	75	15	156	2017-09-12 19:34:33		3280733
53	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3357378
54	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3403923
55	Vorob'ev E.V. (Johnnymnemonic)	147	0	138	2017-06-16 09:15:49		3408072
56	F (uff)	63	25	185	2017-06-01 10:27:49		3429600
57	Skorohod I. (Dracul4ik)	75	15	146	2017-05-04 17:54:53		3469473
58	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		3531364
59	Skorohod I. (Dracul4ik)	75	15	144	2016-10-10 15:20:14		3766267
60	Sysoev A.V. (Sysa)	47	39	165	2016-09-16 00:07:24		3801740
61	Sysoev A.V. (Sysa)	47	39	168	2016-07-22 23:44:07		3880964
62	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4011299
63	Titovskij P.S. (kli3ma)	45	45	164	2016-03-25 05:49:30		4053398
64	Sivoglazov M.A. (Gaizenberg)	64	24	127	2015-11-28 14:08:52		4222819
65	Maslyaev V.S. (Velmont)	86	11	170	2015-11-06 14:01:20		4254506
66	Sivoglazov M.A. (Gaizenberg)	64	24	261	2015-10-13 23:22:26		4288505
67	Fomichev A.V. (Fomichev)	185	0	101	2015-10-07 11:21:04		4297867
68	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4323713
69	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4338017
70	Frolov (dr.shtopor)	78	14	141	2015-09-08 10:04:55		4339703
71	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4351312
72	Chebykin D. (GriGrim)	37	62	217	2015-08-28 21:04:30		4354883
73	Halushka B. (halushka)	44	46	211	2015-08-26 13:33:28		4358214
74	Maslyaev V.S. (Velmont)	86	11	140	2015-07-27 05:27:50		4401900
75	Khromulyak O.M. (ChOleg)	117	5	150	2015-07-26 08:20:51		4403167
76	Chebykin D. (GriGrim)	37	62	216	2015-07-20 09:39:02		4411729
77	Halushka B. (halushka)	44	46	143	2015-07-13 15:28:55		4421459
78	Halushka B. (halushka)	44	46	204	2015-07-07 15:42:03		4430086
79	Skorohod I. (Dracul4ik)	75	15	256	2015-01-28 15:03:11		4660525
80	Skorohod I. (Dracul4ik)	75	15	252	2015-01-27 11:56:41		4662151
81	Sysoev A.V. (Sysa)	47	39	143	2014-12-25 01:16:19		4710311
82	Grishin (alvigr)	76	15	185	2014-12-05 11:56:29		4738471
83	Fajnberg M.L. (burnall)	70	21	122	2014-10-31 12:46:14		4788821
84	Kabanets E.G. (azkaban)	90	9	209	2014-09-27 01:00:23		4838487
85	Sivoglazov M.A. (Gaizenberg)	64	24	178	2014-08-26 23:17:37		4883230
86	Perfilov B.V. (B o r i s)	97	9	29	2014-02-23 19:20:39		5148427
87	Utyonkov M.N. (=Maxim=)	46	42	255	2014-02-03 12:39:35		5177628
88	Shaymardanov M.M. (xLiSPirit)	38	62	147	2013-12-11 13:22:21		5255345
89	Martynyuk (Wiedzmen)	54	32	135	2013-11-26 20:27:27		5276520
90	Chebykin D. (GriGrim)	37	62	255	2013-11-07 15:23:46		5304184
91	Titovskij P.S. (kli3ma)	45	45	203	2013-10-31 10:01:45		5314586
92	Martynyuk (Wiedzmen)	54	32	185	2013-10-22 15:41:24		5327206
93	Kabanets E.G. (azkaban)	90	9	142	2013-08-22 17:11:21		5414956
94	Dvoryaninov V. (Valdaj)	40	55	37	2013-03-30 09:57:45		5624190
95	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	181	2013-03-26 10:24:33		5629923
96	Voevutskij S.A. (SergLK)	196	0	136	2013-02-18 20:46:29		5681141
97	Klimentov S.V. (Es-K'yu-El')	198	0	138	2013-01-28 22:22:27		5711285
98	Kozlov M.V. (mensch)	183	0	138	2012-11-25 12:12:47		5804055
99	Evseev D.V. (DerFroG)	126	2	140	2012-10-21 18:15:13		5854093
100	Dvoryaninov V. (Valdaj)	40	55	122	2012-09-28 15:24:27		5887383

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