Last week rating | SQL Exercises

June 18, 22:24 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

  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
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Last-week results

n_sel - number of select exercises solved this week;
sel_all - total number of solved select exercises;
sel_scores - sum of points on select exercises earned this week;
dml_scores - sum of points on dml exercises earned this week;
scores - total sum of points earned this week;

Involved in rating: 11981

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	>Sorokin D.Yu. (cth)	14	66	30	0	30	587	18 Jun 2018
2	>Mikhalenkov S.V. (black_horse)	13	59	22	0	22	762	18 Jun 2018
3	Osin V. (anyman1979)	6	126	16	0	16	141	18 Jun 2018
4	Savin A.Yu. (mirovingin)	7	82	14	0	14	388	18 Jun 2018
5	Lazaruk R.A. (EsUs228)	9	9	12	5	17	4342	15 Jun 2018
6	>Agirre Kordova A.K. (Cordova)	5	76	12	0	12	423	18 Jun 2018
7	Nesterkin A. (nestam)	8	8	10	0	10	2707	17 Jun 2018
8	Chukanov V.S. (VSC)	4	58	8	0	8	784	16 Jun 2018
9	Chernov D.V. (Kursist)	3	194	7	0	7	29	18 Jun 2018
10	>Vasilevskaya E.A. (kattiks)	2	100	7	0	7	211	18 Jun 2018
11	Petrenko M.M. (Diaboliko)	6	16	7	0	7	4061	16 Jun 2018
12	Zakir'yanova A. (AnaZak)	7	7	7	0	7	5722	12 Jun 2018
13	Doschenko V.N. (mcrain)	2	231	6	0	6	10	18 Jun 2018
14	Sal'nikov S. (SergRand)	6	8	6	0	6	5558	14 Jun 2018
15	>tatkasan (tatkasan)	2	38	5	4	9	1026	18 Jun 2018
16	Shoshkin R. (ROM303)	4	4	5	4	9	3106	15 Jun 2018
17	>Karpeshin E.N. (Zealdequar)	2	99	5	0	5	266	18 Jun 2018
18	Yurin D.I. (Diman9425)	2	35	5	0	5	1929	18 Jun 2018
19	>Pupkin (hangry)	4	6	5	0	5	2971	18 Jun 2018
20	Kolesnikov (hard)	2	138	4	0	4	133	13 Jun 2018
21	>Mityurin V. (mitvol)	3	122	4	0	4	166	18 Jun 2018
22	Petrenko V.S. (Victor I)	2	2	4	0	4	7361	18 Jun 2018
23	Shustov V.V. (shustovvlad)	1	35	3	0	3	1202	18 Jun 2018
24	>Volkov S. (Wolf778)	1	45	2	0	2	1322	18 Jun 2018
25	>Bukina E. (Charming_Shusha)	1	12	1	0	1	2343	18 Jun 2018
26	Mikhasov (CirniCirno)	1	1	1	0	1	11980	17 Jun 2018
27	Osman Z.O. (ZO1411)	0		0	25	25		18 Jun 2018
28	Shakhnovich E.N. (white_93_93)	0		0	19	19		13 Jun 2018
29	Olenev M. (Maks23)	0		0	18	18		17 Jun 2018
30	Khokhlin D. (Denakh)	0		0	17	17	4349	18 Jun 2018
31	Kurbatov V.N. (WarKB)	0		0	17	17	8631	18 Jun 2018
32	Starotitorova (starotitorova)	0		0	15	15		15 Jun 2018
33	rafalmichalski (rafalmichalski)	0		0	14	14	4851	17 Jun 2018
34	Kashaev F.V. (fedor_msu)	0		0	13	13	4712	18 Jun 2018
35	Jia (JJchasedream)	0		0	13	13		18 Jun 2018
36	Natali (Vol4ica)	0		0	11	11	5009	16 Jun 2018
37	Ostroha O.K. (Ostap200683)	0		0	11	11		14 Jun 2018
38	Rozin A.E. (Ne2j)	0		0	10	10	5653	18 Jun 2018
39	Lepilova A. (alena_l)	0		0	10	10		15 Jun 2018
40	WW (Kacperek)	0		0	9	9	5477	17 Jun 2018
41	Kuz'min A. (Langaler)	0		0	9	9	6807	18 Jun 2018
42	Matveev N.M. (claus42)	0		0	9	9		17 Jun 2018
43	Rod A. (yarty)	0		0	9	9		15 Jun 2018
44	Shuba A.Yu. (Vkusya)	0		0	9	9		14 Jun 2018
45	Kshanovska (okshan)	0		0	8	8		14 Jun 2018
46	Turij O.A. (Oleg150)	0		0	8	8		18 Jun 2018
47	Buryj D. (Den04010000)	0		0	8	8		13 Jun 2018
48	Senkiv K.R. (Kateryna_SR)	0		0	8	8		13 Jun 2018
49	Uhbwbr (nafanjka)	0		0	8	8		15 Jun 2018
50	Rodnischev (iictmyed)	0		0	8	8		15 Jun 2018
51	Bukhtoyarov S.A. (Waper)	0		0	8	8		15 Jun 2018
52	Z A.V. (Drummez)	0		0	7	7	6806	17 Jun 2018
53	Fedorov V.A. (Valera174)	0		0	7	7	8628	17 Jun 2018
54	Matvijtsev I. (bing_bang)	0		0	7	7		14 Jun 2018
55	- (palex117)	0		0	6	6	7742	18 Jun 2018
56	Artyomenko T.A. (Vel'khiora)	0		0	6	6		15 Jun 2018
57	MM (Milanche)	0		0	6	6		17 Jun 2018
58	Gileta M. (mgileta)	0		0	6	6		12 Jun 2018
59	Gileta (Nevermore253)	0		0	6	6		12 Jun 2018
60	Zhuk Y. (YuriiZ)	0		0	6	6		14 Jun 2018
61	Kovalenya M.V. (MAX219)	0		0	6	6		14 Jun 2018
62	chirskaya (chirik)	0		0	6	6		14 Jun 2018
63	Banea V.H. (Vmaster)	0		0	5	5		15 Jun 2018
64	espino J.E. (jeesor79)	0		0	5	5		13 Jun 2018
65	joham J.J. (joham)	0		0	5	5		17 Jun 2018
66	Varenov A.V. (F-Man)	0		0	5	5		16 Jun 2018
67	Rangel A.E. (Ahmedr)	0		0	5	5		13 Jun 2018
68	Rangel E.Y. (Yizack)	0		0	5	5		13 Jun 2018
69	Bultron J.Y. (Yonnib)	0		0	5	5		13 Jun 2018
70	vramos97 V.R. (vramos09)	0		0	5	5		13 Jun 2018
71	Aguilar E.A. (faf22)	0		0	5	5		13 Jun 2018
72	Gonzalez J.S. (Kunfu_art)	0		0	5	5		13 Jun 2018
73	Pitty A.A. (Nintaku)	0		0	5	5		13 Jun 2018
74	Gonzalez S.A. (Sergio1598)	0		0	5	5		15 Jun 2018
75	Boyarkin S.A. (19prapor_97)	0		0	5	5		15 Jun 2018
76	Osipov V. (axial)	0		0	4	4	7460	17 Jun 2018
77	Bortsukh S. (Borts)	0		0	4	4	7461	17 Jun 2018
78	Sadovoy (fast_ecologist_2)	0		0	4	4	7462	17 Jun 2018
79	Dent H.N. (harveydent)	0		0	4	4		12 Jun 2018
80	Ivano (Demonik91)	0		0	4	4		12 Jun 2018
81	Budowniczy (Pumpernikiel)	0		0	3	3	7743	17 Jun 2018
82	Pokrovskij I. (Gfp)	0		0	3	3	7744	18 Jun 2018
83	Mazura A. (zerohit)	0		0	3	3		15 Jun 2018
84	Bala (Ammu3)	0		0	3	3		18 Jun 2018
85	Quijada E.C. (Javier1616)	0		0	3	3		13 Jun 2018
86	Volkova (Lesenka333)	0		0	3	3		18 Jun 2018
87	Klimkovich (Laurent88)	0		0	3	3		13 Jun 2018
88	Petrov (user456123789)	0		0	3	3		18 Jun 2018
89	Alhimovich (V.A)	0		0	3	3		15 Jun 2018
90	Polyakov M. (misha82146)	0		0	3	3		18 Jun 2018
91	Erokhin Yu. (skany)	0		0	3	3		15 Jun 2018
92	Rostovskaya (yules92)	0		0	3	3		15 Jun 2018
93	Scherbatykh K.Yu. (kurull)	0		0	3	3		14 Jun 2018
94	Luk'yanenko K. (Kairu)	0		0	2	2	8629	17 Jun 2018
95	qwe (Shkalneg)	0		0	2	2	8630	18 Jun 2018
96	Ibragimov V. (Viner)	0		0	2	2		18 Jun 2018
97	Shaternik P. (ZooM4ik)	0		0	2	2		12 Jun 2018
98	kupytka (userb21)	0		0	2	2		15 Jun 2018
99	Klimenko (Klimenko Andrej)	0	72	0	1	1	704	12 Jun 2018
100	Belozerova (mar.delita)	0		0	1	1	11981	18 Jun 2018
101	Ognienko (a_ogn)	0		0	1	1		14 Jun 2018
102	Chigir' (Parapet)	0		0	1	1		18 Jun 2018
103	kozlova (Vasilinas_4)	0		0	1	1		12 Jun 2018
104	vay (gasvay57)	0		0	1	1		14 Jun 2018
105	Demch (street25)	0		0	1	1		12 Jun 2018
106	Blue A. (drummerjv)	0		0	1	1		18 Jun 2018
107	Balashkova G.I. (Spring_Storm)	0		0	1	1		14 Jun 2018
108	Bogoslav A. (Alex Miller)	0		0	1	1		12 Jun 2018
109	Naumov O. (carlito05)	0		0	1	1		14 Jun 2018
110	andrade J.F. (jamesandrade)	0		0	1	1		13 Jun 2018
111	derek (derekrdm95)	0		0	1	1		15 Jun 2018
112	Titova (koshalad)	0		0	1	1		18 Jun 2018

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