SQL exercises

January 17, 09:49 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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  • "Liberal" rating
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  • Top 10 (photos)
  • Last-week results
  • Rating of second-stage exercises (average)
  • Rating of 2nd-stage exercises (median)
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  • Optimistic rating
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SQL exercises

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  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
  • Transact-SQL tests
  • Data simulation
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Top 100 results shown on the exercise #168

No	Surname	Seconds	dd hh:mm:ss	Date
1	Kurochkin P.A. (qwrqwr)	47	0 00:00:47	2010-08-27
2	Kuznetsov V.S. (herrRo)	4028	0 01:07:08	2011-03-09
3	Fokin A. (Vizitor )	4476	0 01:14:36	2015-05-19
4	Sal'nikov S.A. ($erges)	5138	0 01:25:38	2011-05-04
5	Shaymardanov M.M. (xLiSPirit)	5610	0 01:33:30	2012-09-04
6	Titovskij P.S. (kli3ma)	6962	0 01:56:02	2012-05-29
7	Krasovskij E.A. (pegoopik)	7459	0 02:04:19	2014-07-16
8	Aliev R. (y4nzi)	8128	0 02:15:28	2017-10-03
9	Vyazovetskov A.S. (alex_v)	9639	0 02:40:39	2017-12-19
10	Drozdkov A.N. (anddros)	9654	0 02:40:54	2011-02-03
11	Kostomarov A.V. (al29)	15487	0 04:18:07	2015-12-18
12	Pyatiletov A. (MontaG)	15888	0 04:24:48	2018-07-10
13	Agapov V. (KERBEROS)	16854	0 04:40:54	2013-03-18
14	Filippkin D.V. (_dimon_)	17516	0 04:51:56	2012-01-11
15	Shindin A.V. (AlShin)	20142	0 05:35:42	2010-11-07
16	Murashkin I.V. (lepton)	22485	0 06:14:45	2012-03-20
17	Petrov Y. (YuriPetrov)	26311	0 07:18:31	2014-10-09
18	Timofeeva E.V. (Umrikhina)	26921	0 07:28:41	2015-11-17
19	Kreslavskij O.M. (Arcan)	38692	0 10:44:52	2010-08-31
20	Kukushkin S.A. (smog)	46640	0 12:57:20	2013-03-31
21	Grinkevich D.L. (Dmitrij Grinkevich)	56698	0 15:44:58	2013-01-25
22	Dvoryaninov V. (Valdaj)	69550	0 19:19:10	2010-09-09
23	Orlov M.V. (Eagleoff)	78616	0 21:50:16	2011-08-24
24	Dubinskij A.V. (_velial)	81641	0 22:40:41	2010-09-19
25	Doschenko V.N. (mcrain)	88665	1 00:37:45	2018-08-08
26	Karasyova N.V. (vlksm)	92058	1 01:34:18	2010-10-01
27	Varenikov D.M. (Dmitriy Varenikov)	111665	1 07:01:05	2014-11-13
28	Derzhal'tsev V.A. (MadVet)	117559	1 08:39:19	2010-09-18
29	Bezhaev A.Yu. (Baser)	179736	2 01:55:36	2010-09-22
30	Yatsuk A.A. (Faust_zp)	183011	2 02:50:11	2011-10-12
31	Chebykin D.N. (GriGrim)	214879	2 11:41:19	2014-08-14
32	Shkarednyj I.N. (Gosha)	253755	2 22:29:15	2018-05-11
33	Tarasov D.B. (Gavrila)	270887	3 03:14:47	2010-09-09
34	Chernov D.V. (Kursist)	350977	4 01:29:37	2017-09-08
35	Sigankov V.I. (vasilyvanc)	351302	4 01:35:02	2019-07-01
36	Fedevych V.I. (labuch_fedev)	649668	7 12:27:48	2015-05-12
37	Boiko D. (Angellore)	655383	7 14:03:03	2010-11-01
38	Pusev D.V. (Pusev_Denis)	698995	8 02:09:55	2020-02-23
39	Nashyn E. (O.o)	1486478	17 04:54:38	2011-02-28
40	Movlyanov A.P. (Oct)	2495310	28 21:08:30	2014-06-13
41	Zajtsev V.S. (Sleeping)	5895649	68 05:40:49	2014-05-13
42	Williams B. (BW)	7145567	82 16:52:47	2016-09-19

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