Author's rating on SQL Exercises site

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July 31, 22:00 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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Author's rating for second-stage exercises

ex_num - number of exercises of a given author;
avg_time(min) - the average time (in minutes) which spent for solution of one exercise of a given author by the leaders of rating system (TOP 20);
rating - the average time (in minutes) which spent for solution of all the exercises of a given author by the leaders of rating system (TOP 20);
avg_ball - the average of points received by participants' voting over all exercises of an author;
num_vote - number of votes given for all problems of an author

No	author	ex_num	avg_time(min)	rating	avg_ball	num_vote
1	Vojnov P.E. (paparome)	7	9212	64484	8.2	330
2	Sal'nikov S.A. ($erges)	6	10185	61110	8.0	217
3	Zotov P.G. (Ozzy)	14	3679	51506	8.1	427
4	Kuvalkin K.S. (Cyrilus)	2	18913	37826	9.3	68
5	Karasyova N.V. (vlksm)	7	4818	33726	8.6	164
6	Drozdkov A.N. (anddros)	12	2474	29688	8.2	334
7	Yakutin N.V. (ZrenBy)	10	2100	21000	6.9	416
8	Radar Yu.V. (inkerman)	2	8771	17542	8.4	45
9	Moiseenko S.I. (Serge I)	25	657	16425	6.9	1930
10	Pechatnov V.V. (pvv)	3	2495	7485	8.5	60
11	Gorbunov A.V. (risp)	2	2539	5078	8.1	67
12	Nikotin V.M. (@Nikotin)	1	3836	3836	9.3	10
13	Golubin R.S. (Roman Golubin)	2	1302	2604	8.5	139
14	Yuldashev M.R. (Snowbear)	2	1150	2300	8.6	68
15	Valuev D.I. (Fiolent)	8	273	2184	7.4	248
16	Kurochkin P.A. (qwrqwr)	5	375	1875	7.5	138
17	Makarov I.A. (_Bkmz_)	2	842	1684	8.4	70
18	Gershovich V.(VIG)	8	186	1488	7.0	385
19	Novikov D.A. (DimaN)	5	198	990	7.3	259
20	Zverev D.L. (dimzv)	2	464	928	7.9	59
21	Mal'tsev A.V. (Palkin)	1	807	807	8.2	108
22	Sribnyak A.(silver)	1	523	523	8.4	31
23	Mikhajlov V.G. (mslava)	4	110	440	6.9	250
24	Vanin V.(_Virt_)	1	249	249	7.3	16
25	Murashkin I.V. (lepton)	1	185	185	8.3	35
26	Rozhok Y.V. (yuriy.rozhok)	1	170	170	7.7	57
27	Chobitok V.(vasia armor)	1	129	129	6.7	36
28	Ostapchuk A.B. (_ORA_)	1	85	85	7.0	20
29	Muravejko O.Yu. (Aaz)	1	50	50	6.2	80

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