Today's statistics at "SQL Exercises"

November 20, 11:11 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	Tischenko Ya.V. (Yaroslav2386)	1			5	5
2	Vukolov A. (al.vuk)	2	1	-15		2
3	ASI (asi_sql)	1	1	92		2
4	Joker J.J. (joker-strannik)	1	1	1		1
5	Denisov D.A. (Batyschka)	1					ban	ban
6	Yaruskin S.A. (Ursula_FDR)	2					ban	ban
7	M (krkr)	1					ban	ban
8	Yaruskin (sinergia)	1					ban	ban
9	M (ikRya)	2					ban	ban
10	Gorobets A.M. (Gorobets23)	1					15	25
11	Nothing (maratko)	1					15	24
12	shuvaev I.A. (zane_38)	1					15	24
13	Vakhnina E.A. (liza2288)	1					15	24
14	Zvezdin D.F. (pranchhh)	1					15	24
15	Yaruskin (Simulacr)	1					ban	ban
16	Likharev M.A. (ananas121)	3					ban	ban
17	Kichkina (kchkn)	1					ban	ban
18	Netikova I.V. (netikova)	2					12	22
19	Shpilevaya K.P. (kukukuku)	1					ban	ban
20	Lapina I.V. (irinalapina)	2					15	18
21	Magomedov N. (MagomedovNadyr)	1					15	18
22	Pronin D.I. (Pro13)	2					ban	ban
23	Il'in A.V. (Hailrake_627)	1					7	11
24	Mohamad Maidhin A. (Arshadarzz)	1					7	11
25	Mohovikov (HardFlame)	1					6	11
26	Likharev M.A. (ananas122)	3					ban	ban
27	smi D.E. (bengalos)	1					7	9
28	Ivanov (Ivanov_Nikolay2)	1					ban	ban
29	Akimov A.A. (teiku)	1					5	9
30	rcwqcr C. (xreqwcqwcrq)	1					6	8
31	Novikov A.A. (isip_a.a.novikov@mpt.ru)	1					5	8
32	Privalova S.V. (Svetpriv)	1					6	7
33	Dodonov S.A. (PRAVDA_SEMPAI)	1					3	7
34	Loskutov V.S. (loskut01)	2					5	6
35	Mazepa A.D. (AnnaMazepa)	1					4	6
36	Popov S.A. (spnew)	2					5	5
37	Belyak (TheTester)	1					5	5
38	Bajmuratova G. (bayma)	1					5	5
39	Stikhov I. (soss)	2					3	5
40	Evseev M.D. (BenBeri)	1					3	5
41	Tenyaev O.V. (10i)	1					4	4
42	Gavrilenko (modul)	1					3	4
43	Filyaeva K.D. (AgentKF)	1					2	4
44	Karpets A.A. (Alena Karpets)	1					2	4
45	Pupkin V.T. (Dokiki)	1					2	4
46	Yaruskin (sinergia21)	1					ban	ban
47	M (krrrr)	1					2	4
48	Lavrushin S.O. (white_tlt)	1					3	3
49	Gorobets I.A. (Gorobets24)	1					3	3
50	Turdiev U.M. (uluk_249)	1					ban	ban
51	Mamadnazarov S. (Parfwrest)	1					ban	ban
52	Kulazhan A.B. (Almukha)	1					2	3
53	Mejramov D.E. (Dias21)	1					2	3
54	Komov S.M. (Komov S. M.)	1					ban	ban
55	Galkin A. (agm10)	1					2	2
56	Vdovin (dontenjoynamingthings)	1					2	2
57	Banteev P.V. (bropurbo)	1					2	2
58	Saakyan L.G. (LEVIKAS)	1					2	2
59	Lolenko N.V. (crysis1812)	1					2	2
60	Kenesbek N.D. (jankoja12345)	1					2	2
61	?adylbek M. (Kadylbek Marmar123)	1					2	2
62	Isaev V.A. (Vladikavkaz)	3					1	2
63	Ershova E.A. (ElenaE777)	2					1	2
64	Maksutkan A.B. (Adil' Maksutkan)	2					1	2
65	Pushnoj (arkah)	1					ban	ban
66	Ponomareva Yu.Z. (YuliyaRety)	1					ban	ban
67	Ivanova (genniksi)	1					1	2
68	Grinyova E.P. (Neru38_)	1					1	2
69	Abramov V. (Vitaminez)	1					1	2
70	M (DanilM2304)	1					1	2
71	Nur M.S. (Madikown7)	1					1	2
72	Lena (i_am_pine)	1					1	2
73	Bogushevich L.O. (Lyubabogushevich)	1					1	2
74	Yushina A.N. (Student63)	1					1	2
75	Lysakova (Svet Amur)	1					1	2
76	Bashlachyov (a8)	1					1	2
77	Frolov (drenndor)	1					1	2
78	Mashinov K. (kostya-kostya)	1					1	2
79	Sejsenbek A.G. (Asylzhan)	1					1	2
80	Maksutov D.A. (qaryn)	1					1	2
81	Kokhova Yu.A. (CrazyFox1)	3					1	1
82	Sametova B.A. (xxabscx)	3					1	1
83	Kurmanbajkyzy A.K. (aktnses)	3					1	1
84	Alikulov Z.D. (Ziyovuddin_5876)	2					ban	ban
85	Kairlina A.A. (Ailu2007)	2					1	1
86	Nurbolatuly B. (nbekzaat?)	2					1	1
87	Nurlanuly E.N. (Esbol)	2					1	1
88	Rahat M. (Margulan1234234)	2					1	1
89	Baubek S.B. (Serikkali)	2					1	1
90	Lepekhin I.V. (ilya_lepekhin)	1					1	1
91	Maratov O. (spoer)	1					ban	ban
92	Kondratyev G. (curlypop)	1					1	1
93	Mezentseva T.S. (Mar'yanaRo)	1					1	1
94	Aida M. (Lunakorkem)	1					1	1
95	Lebedev S.V. (Sev)	1					1	1
96	Bisenov R.G. (qEHGRSDH)	1					1	1
97	Orazbek S.K. (Khozyajn)	1					1	1
98	Tyagunov A. (Alextav94)	1					1	1
99	?adіr Zh.Zh. (Zhanbo 3)	1					1	1
100	Smirnov D.D. (Daniil20)	3
101	Nur N.K. (suekn1)	3
102	Il'in Ya.K. (Fallen_187)	3
103	Vishnyakov G.A. (Ohlik2004)	2
104	Sejdakhmet ?. (Seidakhmet)	2
105	Kasymova A.T. (Kasymova Ayazhan)	2
106	Gutyra E.A. (samperman33)	2
107	Moiseeva (jason_account)	2
108	Nikitin A.M. (Roadtoend)	2
109	Makaev A.R. (AQAMAR)	2
110	Esengulova E.K. (Elmira2605)	2
111	Serіk ?. (?lzhan)	2
112	Shkarednyj I.N. (Gosha)	1
113	Kurochkin P.A. (qwrqwr)	1
114	Polyakov V.M. (rock_4)	1
115	Kuzin G.I. (Gremlen)	1
116	Grechko (Vot)	1
117	Evchenko A.A. (syberman)	1
118	hakim (hakimm)	1
119	Lv (Dlvov)	1
120	Bulatov A. (NewAleksei)	1
121	Vishnyakov (TryIzTry)	1
122	Lisin N. (hunter999@mail.ru)	1
123	Yakshin I.V. (ivan_y)	1
124	Bredikhin M. (maxim_bredikhin)	1
125	Stepancheva A. (Stepashka_sun)	1
126	Tokkuliyev Y. (Yersultant)	1
127	Matevosyan A. (Angul)	1
128	Evstigneev A. (Elesar)	1
129	Khudyakov S.V. (Macritza)	1
130	Gryaznov A.D. (ALEKSEY250990)	1					ban	ban
131	Kolov A.A. (Andrej Kolov)	1
132	Ryashina (Ninal_Navaski)	1
133	Khlapov A.B. (AlekseyKX1)	1
134	Sarkis'yan G. (gennadi_s)	1
135	Kopotilov (lptq)	1
136	Skokov B.S. (leks$$)	1
137	Burov V.N. (exLesnick)	1
138	Ivanov (userTest1)	1
139	Kudryavtsev D.V. (_DVK25_)	1
140	Karev M.M. (Maxkkkar)	1
141	Kozlov M.V. (aaxxmm)	1
142	Pogalov S.A. (Sergej Pogalov)	1					ban	ban
143	Burduzha (VADIMATOR1)	1
144	Miroshnichenko E.K. (hulk00)	1
145	Popova E.S. (jane477)	1
146	Odegov A.I. (KovroLitik)	1
147	R. (Wra1th)	1
148	Apresyan A.A. (VinnyZavr)	1
149	Kalashnikova A.K. (anzhelikakalashnikova)	1
150	Aloev A. (azretaloev)	1
151	Orlov A.O. (wrs)	1
152	serikova L.A. (lunaraserikova)	1
153	Lysykh V.K. (Usilitel')	1
154	Komarov R.V. (Roman_Valerievich)	1
155	Kivi (kikivikivikikivi)	1					ban	ban
156	Velichenkov D.A. (Galotane)	1					ban	ban
157	Pechenenko V.V. (VV@P)	1
158	Vinogradova E. (-Helen-)	1					ban	ban
159	Arzumanova M.V. (marasql13)	1
160	Novikov D.Yu. (Saint_Rabbit)	1
161	Nevazhno (Aligator1)	1
162	Sadykova K. (sensou)	1
163	Pal'chikov K.R. (Palchikov Kirill)	1
164	Goreva I.M. (Goreva Irina)	1
165	Fedorischev D.B. (Denisfed)	1
166	Eremeev M.Yu. (Eremeev_my)	1
167	pshenichnyj K.S. (psheni4ka)	1
168	Avdeev A.A. (AntonAA)	1
169	Byt'ev N.R. (Byt'ev Nikita)	1
170	Rumyantsev D.A. (DenisRumyantsev23isbo4)	1
171	Tarasov I.E. (Dyce)	1
172	Gromov I.N. (Ohlik2001)	1
173	Fan M.Kh. (FanMin'1)	1
174	PIONT A. (PIONT_AD)	1
175	Gabdulina A.B. (Alya3)	1
176	Tikhonova M. (timary98)	1
177	Khudzhanazarov O.Sh. (oleg_52)	1					ban	ban
178	Efremov (ChakaChaka)	1
179	Kravtsov K.S. (betyshaha)	1
180	Odnokurtsev (AlFochino)	1
181	Zet P. (Kevlarsen)	1
182	Kislyakova M.V. (Imari_09)	1
183	Pavlenko K.N. (aaaggg666)	1
184	K D.M. (asegik)	1
185	kostina V.O. (v k)	1
186	Schur N. (merderface1)	1
187	Ponomarev V.A. (Vasissa)	1
188	Luk'yanov A. (walpurr)	1
189	Kurtov V.A. (vak228339)	1
190	romPro18 A.A. (romPro19)	1
191	R M.V. (rybakmak)	1
192	Krivonogova I.Yu. (Irina_K76)	1
193	Kirichenko A.A. (Dartchen)	1
194	Frolova D.A. (diana12340)	1
195	Yanov (qwegul)	1					ban	ban
196	Britvin (Britosh)	1					ban	ban
197	Parubchenko D.P. (TheLastLeft)	1
198	Kharrasov A.R. (1_AzA_1)	1
199	Dimitrov S.I. (Dimitrov)	1
200	Orazkanova A. (Albinaa__)	1
201	Karieva A.E. (aidkari)	1
202	Bataev M.S. (AeroDo2121)	1
203	Makizhanov M.M. (Makma__)	1
204	Samat M.E. (Miko007)	1
205	Mityukov E.D. (hezky)	1
206	Khusainov A.R. (Leonard66)	1
207	Dimakov A.A. (tectolik)	1
208	Barin I.V. (HahLove)	1
209	M?ratov B.E. (Balta)	1
210	Manina (rusinovaoks1205@gmail.com)	1
211	Tsydenova V.B. (TVika)	1
212	kurmanaly S.D. (asd6757)	1
213	Bajzhanov E.T. (Cubekeeper)	1
214	Serikov A.E. (ardakserikov)	1
215	Unregistered	23

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References