Today's statistics at "SQL Exercises"

November 14, 18:11 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.
NOTE: Your browser should support Cookies and Javascript to provide correct usage of this site. If you use content filter, it should allow opening child windows to explore help pages.

Ratings

  • Top 100
  • 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

  • Today statistics
  • Site's old residents
  • Recent leaders activity
  • Сhanges in exercises' TOP 10
  • Results' chart

SQL exercises

  • Site rules
  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
  • Transact-SQL tests
  • Data simulation
  • Data simulation (DML);
  • Visual simulation (painting)
  • Exercises voting (SELECT)
  • Exercises voting (DML)

Forums

  • Learning stage
  • Rating stages
  • Favorites
  • Search
  • Blogs

Certification

  • About certification
  • Certified professionals
  • Statistics
  • Statistics over regions (map)
  • Confirm certificate

HELP

Query optimization

For employers

Support SQL-EX.RU

Today statistics

nLog - number of logins;
nSelEx - number of select exercises solved today;
lastEx - number of last select exercise solved;
nDmlEx - number of dml exercises solved today;
Scores - sum of points on the exercises solved today (select and dml);
numLrnEx, LrnScores - number of exercises solved today and sum of points on learning stage

No	Surname	nLog	nSelEx	lastEx	nDmlEx	Scores	numLrnEx	LrnScores
1	Cool A. (Zigmund)	2	4	5		5
2	r A. (arb_)	1			2	4
3	O (janeoosql)	1	1	43		2
4	Iutinskij D.E. (dimaiuuu)	1			1	2
5	Gazaloeva Kh.R. (Khava)	1					ban	ban
6	Kozlov E.O. (egorkozlov)	2					15	26
7	Perepelitsa S.A. (velsi)	1					15	26
8	Prokhorov V.D. (Mc_vyrda)	1					ban	ban
9	Vasil'ev (Valera2878)	1					15	26
10	Golubeva E.A. (GolubevaEA)	1					ban	ban
11	Asyutin G.S. (gavriilasyutin)	4					ban	ban
12	Osipov (miyko)	2					15	24
13	Ermakova M.A. (qazxswed)	2					ban	ban
14	Kopylova S.A. (Loshara_ru)	1					15	23
15	Olejnikova M.A. (Mariya Olejnikova)	1					15	23
16	Bakhtiyarova A. (Asya8)	1					12	23
17	Pustosmekhov M.S. (mihail301)	2					15	22
18	Bajraktar A.I. (DozenZozen)	1					13	20
19	Yudakhin D.I. (Yudakhin Dmitrij)	2					15	18
20	Gubanova S.K. (domokwizz)	2					ban	ban
21	Myl'nikova Zh. (Zhanett)	1					11	13
22	Falaleev R.A. (rmnflv)	2					10	13
23	Filippov D.A. (Daredev11)	2					9	12
24	Ivanova (s0nya)	2					9	12
25	Karvanen M. (Maksim Karvanen)	2					ban	ban
26	Pryamikov D.N. (loralgris)	1					8	11
27	Vinogradova (Margo456)	3					7	11
28	Fajzulina S.Sh. (snejanna)	2					ban	ban
29	Amogusov A.A. (amogusamogus)	1					6	10
30	Solov'ev P.A. (Pavlinxi)	2					7	9
31	Sergeev S.S. (boca123)	1					ban	ban
32	Zhizhilev A.S. (artembrbrbr)	1					5	9
33	Najmushin R.A. (maka16541654)	1					5	9
34	Matush D.A. (Eruk25)	1					5	9
35	Vas E.N. (kortez39)	5					8	8
36	Gorbachevskaya S.S. (sfesk)	1					7	8
37	Partenadze T.N. (Knux)	1					7	8
38	Romanov N.A. (LgcCore)	1					4	8
39	Lomov R.V. (Silverom)	1					4	8
40	Kuklina K.A. (Karrrina)	1					4	8
41	Nagaev V.A. (vled228)	2					6	7
42	Strel'tsov S.D. (pxbn)	2					6	7
43	Nikiforov D.I. (7xxnine)	2					6	7
44	Dolgikh A.N. (sasha52)	2					6	7
45	Krinitsyn M.V. (aveng12)	2					6	7
46	Fyodorova A.A. (Yanastyaa)	2					6	7
47	Zhuravlev I.P. (z0mb1e196)	2					6	7
48	Vorob'yov N.N. (A777MR777)	1					6	7
49	Podkovyrin A.A. (lexus3107)	1					6	7
50	Korelina A.D. (ssssstasy)	1					6	7
51	Abdurasulova M.V. (Masha2Rublya)	1					6	7
52	Kozodoj V.A. (vika196)	1					6	7
53	Familiya I.O. (sqlkoko)	1					ban	ban
54	D'yakov A. (SovaManager)	1					6	7
55	Lol D.F. (Tolyan67)	2					5	7
56	. .... (polytapir)	1					5	7
57	Galeev I.O. (Gnom567)	1					4	7
58	zxc42 4.C. (zxc42echo)	1					ban	ban
59	Khrapov N. (sfarbuzer)	3					3	6
60	Kukushkin A.A. (KukushkinAA)	2					3	6
61	Meteleva A.V. (Meteleva Aleksandra)	1					3	6
62	Popova K.K. (Popova Ksyusha)	1					3	6
63	Fedorov I.D. (Dieosocoe)	3					5	5
64	Sidoruk K. (itsmk)	2					5	5
65	Romanova E.E. (refoxre)	2					5	5
66	loov (NikitaL12)	2					5	5
67	Luzina M. (marialuz2006)	2					5	5
68	Huryanchyk A. (Goose&Duck)	2					5	5
69	kovalenko i semenov Zh... (mrdzhivik)	2					5	5
70	Bazzayev A. (Hsar)	2					5	5
71	Vlasov M. (Pierre Dunn)	2					5	5
72	Poletov T. (Li0ko)	1					5	5
73	Palazzo (Leandro Palazzo)	1					5	5
74	Mosunova E.A. (Ekaterina2006/)	1					5	5
75	Zumerova A. (lolkek13122006)	1					5	5
76	Djbu G.A. (shrkfrd)	1					5	5
77	Meshcherskikh V. (Valeria_M_2006)	1					5	5
78	Poveda A.V. (povedaAV)	1					5	5
79	Zubov O.S. (Ayanamyd)	1					5	5
80	Ivanova S.A. (syxarekk)	1					5	5
81	Andrey A.A. (AndreyAndrey1980)	1					5	5
82	Khopta A. (APetroWhich)	1					3	5
83	Shirobokov D.E. (F4luckOff28)	1					3	5
84	Ivanov (Lifon)	1					3	5
85	Taratorkin M.A. (lewistwelve)	2					4	4
86	Shinkevich I.V. (aivan96)	2					3	4
87	Baimaganbet I.A. (Ilyas_sql26)	1					3	4
88	Lebedev A. (Vodooaxe)	1					3	4
89	Kabanov N.D. (sumatoky)	1					3	4
90	Kozel V.D. (Valeriya Kozel)	1					3	4
91	Skryabin D.A. (kotsuro)	3					2	4
92	Akim D.K. (haizn12)	2					2	4
93	Batalova M.I. (Fyasilka)	1					2	4
94	Kiselyov V.O. (alohavladimir)	1					2	4
95	kn (mmm0101)	1					ban	ban
96	Ivanov (0Tim)	1					2	4
97	Serkov (TFD_131)	1					2	4
98	Krivets M.S. (Maria Krivets)	4					3	3
99	M (m_al)	1					3	3
100	Safin A. (OgdoBogdo63)	1					3	3
101	Yarotskij A.I. (Lenge)	1					2	3
102	Bochkova (PunDora)	3					2	2
103	Shebunov A. (shebunovayu)	3					2	2
104	Akimova E.N. (Katrin_A91)	1					2	2
105	Bugretsov (jbeb77)	1					2	2
106	Byzova M.A. (m1145)	1					2	2
107	Mikhailov (Bogdan29)	1					2	2
108	Narkevich K.P. (Kirill Lirik)	3					1	2
109	Kykolnikov (Krasaucheg1111)	3					ban	ban
110	Baj A. (uchis'_zhit')	3					1	2
111	Isakov I.A. (isakoviasql)	2					1	2
112	Chebaev D.O. (firgost)	2					1	2
113	Oleg T. (Oleg_QA)	2					1	2
114	Rakhmatova E.D. (RakhEl)	2					1	2
115	Zolotarev M.A. (MaksimZ0l0)	2					1	2
116	Schepak V. (Valerij85)	1					1	2
117	Noskova D.I. (daho_n)	1					1	2
118	Ivanova E.I. (GoldOtta)	1					1	2
119	Shevnin D.D. (danilsh)	1					1	2
120	Gajfullina (tavi777)	1					1	2
121	Belashkin I.A. (Tookser)	1					1	2
122	Lidvina I.S. (korella)	1					1	2
123	Zholnerov A.P. (perelopacheno)	1					1	2
124	Vinokurova E. (elsaelsa12)	1					1	2
125	Murashev A. (t3ma)	1					1	2
126	Artemov (Vladimir Artemov)	1					1	2
127	Polyushko V.O. (React001)	1					1	2
128	Fedyunin D. (YasherDf)	1					1	2
129	- -.-. (TheAnCored)	1					1	2
130	Blackwood T. (Buckiss)	2					1	1
131	Misharin S. (xashmare)	1					1	1
132	Kerimkul N.K. (Nurmukhammed_01)	1					1	1
133	Shibaev (saah)	4
134	Markin N. (Qmaro)	3
135	Vladimir V.V. (Vladimir23)	3					ban	ban
136	Kovtun A.Yu. (sillygoosegagaga)	3
137	Sh S. (junopark1)	3
138	Denisenko A.A. (Denisenco)	2
139	StepanGiga (StepanGiga)	2
140	Sarkis'yan G. (gennadi_s)	2
141	Golovkin I.A. (GHOST2508)	2
142	Myuller P.D. (growlerrr)	2					ban	ban
143	Shishova D.D. (doshiko)	2
144	tkachenko (NotFufx)	2
145	Zimin A.M. (AMZimin777)	2
146	Surmilov (snnnm)	2
147	Kozlov (Timur_Kozlov)	2
148	Mosteika M.J. (modeirmode)	2
149	Lvof A.V. (Lvof)	2
150	Yakovleva M.A. (masha098)	2
151	Kurochkin P.A. (qwrqwr)	1
152	Krasovskij E.A. (pegoopik)	1
153	L (lapa_87)	1
154	Belov V.A. (agent04)	1
155	Wie K. (wiekatarzyna)	1
156	Voronyuk A. (AnnVrn)	1
157	Soboleva R. (zSpiny)	1
158	Dolgov A.E. (Sasha_NVGU_2019)	1
159	Yurchenko A.A. (y.aleksandr89)	1
160	Tulashvili (IR4KLI)	1
161	Senotrusova T.A. (baikalozka132)	1
162	Shabaev (SultanTravkin69)	1
163	Bogomolov D.B. (bdv86)	1
164	Demeshko N.A. (keepsme1)	1
165	Kiz E.A. (Kea23)	1
166	Alexeev V.A. (PUX)	1
167	Khrol N.S. (Natalia_Khrol)	1
168	Markova (Irena280880)	1
169	Rodichkin (pseudozzz)	1
170	Ulanova I. (Ulanova)	1
171	Kushnir S.A. (Wishmaster190281)	1					ban	ban
172	Chernyshov A.I. (Smile4321)	1
173	R. (Wra1th)	1
174	K Ya.A. (Iana88)	1
175	Kochnev (Tiponick)	1
176	Abramov V. (Privet ot Sashi Borovkova)	1
177	yan (raslrrrr)	1
178	ustyantsev D.V. (dimitryust)	1
179	Deva N.S. (nithin0303)	1
180	Erykalin (IJAKIBS)	1					ban	ban
181	zaitsev (Mr.Danil_SQL)	1
182	Dement'ev V.E. (Ferocid)	1
183	Pukhlikov M.A. (maxsql20)	1
184	Kirieshka N.A. (nina3747)	1
185	Perets A.S. (Aperets1)	1
186	Shekhov M.A. (MaksS_10)	1
187	Vasil'ev V. (Valeriy123)	1					ban	ban
188	Fedchenko A.D. (EtoAleksandr)	1
189	Evdokimov A.A. (Dark_Tanyan)	1
190	Andreeva P.A. (Polina Andreeva)	1
191	Molodkin D.V. (DxnB)	1
192	Strakhova V.E. (VLDST)	1
193	Agal'tsev R.E. (Satokuson)	1					ban	ban
194	Belkov D. (Belkov2026)	1
195	Sherstobitova D.V. (medny29)	1
196	Baranov N.A. (n1kasesql)	1
197	Uglik G.I. (force7k)	1
198	Casian A. (Casand1)	1
199	Pekarskikh O.V. (Fobia666)	1
200	Matveeva O.N. (Olga_Matveeva)	1
201	Mikityuk A.A. (anastasia0114)	1
202	Demidova A.O. (Alexia75)	1					ban	ban
203	Balobanov (Vasykas)	1
204	Kozhaev I. (Ilyas09)	1
205	Popova E. (whotyc)	1
206	Anokhev G.A. (gleb2007)	1
207	Likhtinshtejn (nnpl)	1
208	Bulka V.I. (Bulka36)	1					ban	ban
209	Ermakova O. (Olga Ermakova)	1
210	romanenko V. (Roma3976!)	1
211	Tentacles A. (Amatoren)	1
212	Babaev D.S. (XSamurai1337)	1
213	Pan'kina N.E. (Blue_Stitch)	1
214	Chuvyzgalov A.A. (UNDREY56)	1
215	Galkina S.V. (sofiuschka)	1
216	Timaschuk (k0lua)	1
217	Kutnyashenko K. (Abenteurer)	1
218	Wieczorek P. (Papoti)	1
219	Unregistered	41

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References