Last week rating | SQL Exercises

August 17, 13:44 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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Ratings

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  • Top 100 on latest exercises
  • "Liberal" rating
  • Olympic rating
  • TOP 100 of Learning Stage
  • Rating by summation of ranks
  • Top 10 (photos)
  • Last-week results
  • Rating of second-stage exercises (average)
  • Rating of 2nd-stage exercises (median)
  • Author's rating  • 2nd stage rating up to exercise:
   enter No 
  • Rating on the exercise:
   enter No
  • Optimistic rating
   enter factor

Statistics

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  • Site's old residents
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  • Сhanges in exercises' TOP 10
  • Results' chart

SQL exercises

  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
  • Transact-SQL tests
  • Data simulation
  • Visual simulation (painting)
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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: 12115

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	Burmistrov V.V. (Razorkell)	16	60	29	0	29	778	16 Aug 2019
2	Safonov A.A. (funnym33)	14	46	25	0	25	1085	17 Aug 2019
3	Yartsev Yu. (Yury66)	10	64	21	4	25	686	17 Aug 2019
4	Morgunova L. (amfisbena)	9	71	21	0	21	525	16 Aug 2019
5	G (HPavel)	6	43	11	0	11	1089	16 Aug 2019
6	Gnusov L.Yu. (Delan)	7	11	10	11	21	2991	17 Aug 2019
7	Pavlyuk (Pashka_T)	5	51	9	0	9	942	16 Aug 2019
8	Shablya A. (Ondresh)	5	35	9	0	9	1270	16 Aug 2019
9	ivanov I.I. (godmother)	6	6	9	0	9	2830	17 Aug 2019
10	Zvorykin D.A. (migdal-or)	5	20	8	0	8	3294	16 Aug 2019
11	Trofimov (learn_jack)	3	48	7	0	7	1272	16 Aug 2019
12	Buldenkov D.A. (eXeQuThor)	4	120	6	0	6	163	15 Aug 2019
13	Golubeva (Sutie)	5	31	6	0	6	2381	15 Aug 2019
14	Osipova T. (Mirt)	3	27	5	10	15	1974	16 Aug 2019
15	Bangga E.N. (metalhacker)	4	8	5	1	6	2024	16 Aug 2019
16	Yanin M.Yu. (Mikhkha)	3	6	5	1	6	5388	17 Aug 2019
17	Balbekov A.G. (NtFire)	2	83	5	0	5	333	16 Aug 2019
18	Kopylov A.V. (alegzey)	2	76	5	0	5	337	16 Aug 2019
19	Pantileenko D. (iriswind1)	2	86	5	0	5	362	16 Aug 2019
20	>i L. (Lexa_550)	2	2	4	24	28	7492	17 Aug 2019
21	Fokin A. (Vizitor )	2	182	4	15	19	39	17 Aug 2019
22	>Yakovlev M.V. (MikhailYakovlev535)	1	114	4	0	4	305	17 Aug 2019
23	Selezen' A.N. (Artny)	2	78	4	0	4	365	16 Aug 2019
24	Leonov I. (bubets)	3	3	4	0	4	3250	16 Aug 2019
25	skakova (diaska)	3	4	4	0	4	4941	15 Aug 2019
26	Gapanovich P.A. (drestar1)	1	88	3	10	13	341	16 Aug 2019
27	Alborov K.R. (albor)	2	63	3	8	11	627	16 Aug 2019
28	Sigankov V.I. (vasilyvanc)	1	192	3	0	3	40	16 Aug 2019
29	Savin A.Yu. (mirovingin)	2	93	3	0	3	321	12 Aug 2019
30	Burdenko Ya. (Bsl)	1	35	3	0	3	1265	15 Aug 2019
31	Chernov D.V. (Kursist)	1	256	2	0	2	10	16 Aug 2019
32	Shkarednyj I.N. (Gosha)	1	193	2	0	2	31	16 Aug 2019
33	Nazarova (L__)	1	44	2	0	2	1051	15 Aug 2019
34	Karachyov A.O. (ZILIO)	1	38	2	0	2	1167	16 Aug 2019
35	>Ugarin M.V. (Maksim Ugarin)	2	2	2	0	2	8700	17 Aug 2019
36	Danilov N. (LMH)	1	1	1	18	19	3451	14 Aug 2019
37	Zhukov A.A. (aazhukov_12)	1	1	1	18	19	3466	16 Aug 2019
38	Poltorakin R. (Fanc1k)	1	1	1	0	1	12077	17 Aug 2019
39	Ivanov (Umxo)	0		0	27	27		17 Aug 2019
40	Stepanov M. (matthewz)	0		0	23	23		16 Aug 2019
41	Vedmitskaya A.A. (seamark__)	0		0	22	22		15 Aug 2019
42	valera (valera12.97)	0		0	22	22		16 Aug 2019
43	Basov (artembass88)	0		0	21	21		15 Aug 2019
44	Buruyane I.V. (Restlin1212)	0		0	20	20		16 Aug 2019
45	Maslennikova E.A. (ka_ma2002)	0		0	17	17		15 Aug 2019
46	Savochkin V.V. (Sava_v)	0		0	17	17		16 Aug 2019
47	Abakumova A.A. (anna_arzel)	0		0	16	16		15 Aug 2019
48	Khvostionok (Lenkaa_)	0		0	16	16		14 Aug 2019
49	Zabaluev (TimZab)	0		0	11	11		16 Aug 2019
50	Gadzhimuradov R.M. (Legionershik)	0		0	11	11		14 Aug 2019
51	Baibak D.O. (Baibak)	0		0	11	11		12 Aug 2019
52	Kharitonov M.A. (Mar1kk)	0		0	11	11		14 Aug 2019
53	Disve (Aspidstyle)	0		0	9	9		16 Aug 2019
54	Kazhuro V.V. (Vitaly_Kazhuro)	0		0	9	9		17 Aug 2019
55	Eroshenco G.S. (Prod.TUBB)	0		0	9	9		15 Aug 2019
56	Bakinovskij A.A. (buksir)	0		0	9	9		13 Aug 2019
57	Malenko D. (vaux)	0		0	9	9		13 Aug 2019
58	Kuchic (y-mann)	0		0	8	8		11 Aug 2019
59	Caan (Caan)	0		0	8	8		16 Aug 2019
60	Rozhin A.V. (Antihhrist999)	0		0	8	8		12 Aug 2019
61	Brzezicki (Neroxman)	0		0	8	8		16 Aug 2019
62	Klimisha (PakManH)	0		0	7	7		16 Aug 2019
63	Lo (Lo74)	0		0	6	6		14 Aug 2019
64	Polozhentsev I.E. (igor.pol89)	0		0	6	6		16 Aug 2019
65	Sesorov K.S. (Kirillos)	0		0	6	6		10 Aug 2019
66	Umnova (Viktoriya994)	0		0	6	6		16 Aug 2019
67	Ershov (AJlxuM)	0		0	6	6		15 Aug 2019
68	Glazkova T. (PanikaTM)	0		0	6	6		14 Aug 2019
69	Kiselyova A.S. (Angelina_21_mipt)	0		0	5	5		13 Aug 2019
70	Makovey (MakoveyV)	0		0	5	5		14 Aug 2019
71	Rodionov N.M. (Rnick)	0		0	5	5		16 Aug 2019
72	Bartsev (shurets)	0		0	5	5		16 Aug 2019
73	Dashevsky (KingOfAirAndMemes)	0		0	5	5		16 Aug 2019
74	Memetor (Eryndiw)	0		0	5	5		17 Aug 2019
75	Aleksandrov D. (bhjk)	0		0	5	5		16 Aug 2019
76	Tul'chinskij (ArGintum)	0		0	5	5		16 Aug 2019
77	Mirzaaghayev (mirzagaew)	0		0	5	5		16 Aug 2019
78	Chelebiev R. (Cofp)	0		0	4	4		15 Aug 2019
79	Nazarenko (someday)	0		0	4	4		15 Aug 2019
80	Gadzhiev (RamilGad)	0		0	4	4		16 Aug 2019
81	Nemets S.Yu. (Spartak13)	0		0	4	4		11 Aug 2019
82	np.nan (acha)	0		0	4	4		16 Aug 2019
83	Grinenko V.E. (curses)	0		0	4	4		15 Aug 2019
84	Kozyr' I. (Kozyr)	0		0	4	4		15 Aug 2019
85	Aleksandrov A.S. (AndreyNN)	0		0	3	3		14 Aug 2019
86	VINOGRADOV A. (zhullex)	0		0	3	3		13 Aug 2019
87	Korolev O.S. (legas23)	0		0	3	3		15 Aug 2019
88	Y M.L. (Ahn`Qiraj)	0		0	3	3		16 Aug 2019
89	Gupsa M. (MaryGo)	0		0	3	3		16 Aug 2019
90	Kasatkina A.O. (olen13)	0		0	3	3		16 Aug 2019
91	Sviridenko (OverwhelmingSimpleton)	0		0	3	3		15 Aug 2019
92	Grekova E. (lenochka39)	0		0	3	3		14 Aug 2019
93	Babin (absolutniu)	0		0	3	3		14 Aug 2019
94	Antonov (Schastiee)	0		0	3	3		11 Aug 2019
95	Kuzmicki (Dominik98)	0		0	3	3		13 Aug 2019
96	Lobanov I. (AjlowSW)	0		0	3	3		17 Aug 2019
97	Kulakova (K_KET)	0		0	3	3		16 Aug 2019
98	Aleksandrova E. (kateAlex)	0		0	3	3		12 Aug 2019
99	Ordzhonikidze O.I. (Arsalan112)	0		0	3	3		16 Aug 2019
100	Klyuchnikov A.V. (klyuchnikov.a)	0		0	3	3		16 Aug 2019
101	Soroka M.Yu. (sorokax)	0		0	3	3		16 Aug 2019
102	Milenkov (wqer)	0	142	0	2	2	95	16 Aug 2019
103	Vladov V. (Gtufc)	0		0	2	2		17 Aug 2019
104	Bespalov D.N. (BDN)	0		0	2	2		16 Aug 2019
105	Bulatnikova O. (OlgaBulat1)	0		0	2	2		17 Aug 2019
106	Sosedova O.S. (ollya_so1)	0		0	2	2		16 Aug 2019
107	Kapusta A.S. (kapusta_3121)	0		0	2	2		16 Aug 2019
108	Docgam (Gamo)	0		0	2	2		13 Aug 2019
109	1231 (veriasov1)	0		0	2	2		13 Aug 2019
110	g M.B. (sqlmat)	0		0	1	1		14 Aug 2019
111	Vasil'ev M.N. (vasilyevmn)	0		0	1	1		14 Aug 2019
112	Ignatov D.A. (Nau84)	0		0	1	1		12 Aug 2019
113	Goreslav (garikyarik)	0		0	1	1		16 Aug 2019
114	hopk86hh256 (user68834765)	0		0	1	1		11 Aug 2019
115	Sakhnenko V.V. (vlad131293)	0		0	1	1		16 Aug 2019
116	roshan R. (ramees-roshan)	0		0	1	1		13 Aug 2019
117	Efimov D.I. (daniiiil)	0		0	1	1		16 Aug 2019
118	Pomaleyko S. (stanislav.pomaleyko)	0		0	1	1		16 Aug 2019
119	Alifanov M. (imnotmaddy)	0		0	1	1		16 Aug 2019
120	Tumashova A.V. (TumashovaA)	0		0	1	1		14 Aug 2019
121	Malevich (HaveAniceDay)	0		0	1	1		13 Aug 2019
122	Karimov M.R. (g7th)	0		0	1	1		15 Aug 2019

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