SQL exercises

November 21, 11:47 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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  • Rating of second-stage exercises (average)
  • Rating of 2nd-stage exercises (median)
  • Author's rating  • 2nd stage rating up to exercise:
   enter No 
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   enter No
  • Optimistic rating
   enter factor

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SQL exercises

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      choosing DBMS)
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Top 100 results shown on the exercise #175

No	Surname	Seconds	dd hh:mm:ss	Date
1	Krasovskij E.A. (pegoopik)	44	0 00:00:44	2011-05-01
2	Zajtsev V.S. (Sleeping)	11042	0 03:04:02	2018-02-01
3	Drozdkov A.N. (anddros)	12604	0 03:30:04	2011-06-28
4	Sal'nikov S.A. ($erges)	13067	0 03:37:47	2011-05-10
5	Bezhaev A.Yu. (Baser)	14757	0 04:05:57	2011-04-30
6	Vyazovetskov A.S. (alex_v)	15693	0 04:21:33	2017-12-29
7	Titovskij P.S. (kli3ma)	18292	0 05:04:52	2012-09-21
8	Kuznetsov V.S. (herrRo)	19183	0 05:19:43	2011-05-06
9	Kreslavskij O.M. (Arcan)	23807	0 06:36:47	2011-04-29
10	Orlov M.V. (Eagleoff)	25190	0 06:59:50	2011-06-23
11	Shindin A.V. (AlShin)	26849	0 07:27:29	2011-04-28
12	Dvoryaninov V. (Valdaj)	32764	0 09:06:04	2011-06-01
13	Kalinin K.A. (kalinin_k)	36891	0 10:14:51	2011-12-17
14	Kurochkin P.A. (qwrqwr)	51956	0 14:25:56	2011-05-04
15	Filippkin D.V. (_dimon_)	89040	1 00:44:00	2012-04-24
16	Yatsuk A.A. (Faust_zp)	92938	1 01:48:58	2011-10-25
17	Movlyanov A.P. (Oct)	99224	1 03:33:44	2015-02-05
18	Utyonkov M.N. (=Maxim=)	105725	1 05:22:05	2011-11-25
19	Aliev R. (y4nzi)	111951	1 07:05:51	2017-12-21
20	Tarasov D.B. (Gavrila)	126536	1 11:08:56	2011-09-29
21	Karasyova N.V. (vlksm)	265874	3 01:51:14	2011-05-06
22	Zin4uk V. (Zin4uk Vadim)	273873	3 04:04:33	2013-05-12
23	Pusev D.V. (Pusev_Denis)	372424	4 07:27:04	2020-12-31
24	Doschenko V.N. (mcrain)	707440	8 04:30:40	2018-04-06
25	Kukushkin S.A. (smog)	796999	9 05:23:19	2013-07-31
26	Chernov D.V. (Kursist)	868232	10 01:10:32	2018-10-01
27	Kostomarov A.V. (al29)	1293488	14 23:18:08	2016-02-02
28	Boiko D. (Angellore)	2044313	23 15:51:53	2011-11-15
29	Grinkevich D.L. (Dmitrij Grinkevich)	14629229	169 07:40:29	2013-05-13
30	Dubinskij A.V. (_velial)	56130567	649 15:49:27	2014-05-22

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