Today's statistics at "SQL Exercises"

July 29, 18:18 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	EL A.A. (AEL1811)	2			9	9
2	Anisimova (marble_plaque)	2			2	2
3	Shibaev (saah)	2	1	50		1
4	Williams B. (BW)	1	1	308		1
5	Antonov (SalamPopolam)	3					21	31
6	Durynichev (Nikita_fik)	2					15	24
7	fyv F.F. (defiler__617)	1					14	24
8	Zanjad S.T. (Shreya Zanjad)	1					15	23
9	Gafurov A.R. (Gafurov A.R.)	1					15	21
10	Leont'eva K.E. (keleonteva)	1					15	21
11	Altashin S.V. (burrito)	1					10	20
12	asd A.A. (defiler__616)	1					15	19
13	Makshaev O.V. (McShay)	3					15	18
14	Pesiiii V.R. (BFBD)	2					15	18
15	Nikolov P.F. (plamennf)	1					15	18
16	Turkovsky (KonKhiDot)	2					13	18
17	Lomakina (lomchik)	2					10	17
18	Khalkiopova M. (mkhalkiopova)	1					9	15
19	Khorunzhij E.A. (wuwuqw)	2					11	14
20	Zevakin (EveRWhateveR)	3					10	13
21	Pelov O.I. (Jk212356)	1					9	12
22	Vorob'yaninov I.M. (DirektorKontsessii)	1					9	12
23	Borisov A. (zerotool)	2					9	11
24	gorrog (gor1234)	2					8	11
25	Akim (Dano4ka_520)	1					7	10
26	Piotka V. (Pilotich)	1					ban	ban
27	1 1.1. (feriell)	1					8	9
28	Romadin K.S. (Snezhokich)	1					8	9
29	Silenkova D.S. (silenok)	1					7	9
30	Fomitskij A.A. (Qleks)	1					6	9
31	Revin A.A. (AntonRvn)	1					5	9
32	Ivanova E.A. (kater700)	1					5	9
33	stim (nyanracingcat)	1					8	8
34	jxkks S.S. (xskskttts)	1					6	8
35	Khvoshchev S. (VIXS1512)	3					5	8
36	Saxenbayeva Z.S. (zhsaksenbaeva)	2					7	7
37	Schur (KatrinSHH)	1					6	7
38	kofuku (Kofuku)	1					6	7
39	Rogozhin N. (glaze)	1					6	7
40	Bakin (lemoine)	2					5	7
41	Arkhangel'skij A. (Milbroun)	2					4	7
42	Trenyova (Joullius)	2					4	7
43	Top D. (Dashk1a)	1					4	7
44	Strilenko (Liamorte)	2					5	6
45	Mozhaev N.M. (Veahzom)	1					5	6
46	Druzhinin (egorrrmiller)	1					5	6
47	Khalkiopov V. (khalkiopov96)	1					4	6
48	grigor'eva V.D. (pivovar123)	1					3	6
49	Mikhajlova V.P. (veneragret)	1					3	6
50	Antonov S.A. (generatorBULLUNGA)	3					5	5
51	Kozlova M. (Mashkevich)	1					5	5
52	Filippov D.A. (shketik)	2					4	5
53	Funtova M.I. (fialka3)	1					4	5
54	Malysheva K.P. (KaterinaVfksi)	1					4	5
55	Burtonov A.V. (tak to)	3					3	5
56	Romanov A.A. (andromus)	1					3	5
57	Mikhel'son V.V. (I want to do aninternship)	1					3	5
58	Kozhevnikov V.V. (gutalikk)	3					4	4
59	Dobrynin (DanilDV)	3					4	4
60	sheshelidze K. (katdevv)	3					4	4
61	Mihaylov P. (plgurenn)	2					4	4
62	Antonov M.V. (mantan15637)	1					4	4
63	E (neri)	2					2	4
64	Fedorchukova D.V. (DariyaFedorchukova)	2					2	4
65	Dimitrov V.M. (vencid)	1					2	4
66	Vavel' V.A. (VikVav)	1					2	4
67	Egorova A.O. (Sasha1994)	1					2	4
68	Nebyshinets (Katerina N)	1					3	3
69	Karimov (Askhat007)	1					3	3
70	Saidov I. (igor_1993)	1					2	3
71	Sosnin M. (setNameMaxim)	1					2	3
72	Novikov A.N. (Takuan)	1					2	3
73	Zhirnova A.A. (Alisik)	1					2	3
74	Ignatenko A.P. (AnastasiyaIGAP)	1					2	3
75	Rudov D. (Big_mafusail)	2					2	2
76	Burakov A. (NAME4457)	2					2	2
77	imerbakiyeva D. (diimrbkv)	1					2	2
78	Paleshev A.A. (JustE11evven)	1					2	2
79	Malikov A.A. (Ara2002)	2					1	2
80	Rakhmetolla S. (Shattyk96)	2					1	2
81	Balashova (albalashova)	1					1	2
82	Gujo A.A. (arturguyo)	1					1	2
83	Strukov (StrukovSA)	1					1	2
84	Mazitov Sh. (4broken)	1					1	2
85	Nothing N. (sektaz)	1					1	2
86	Mikaya (Gio9248)	1					1	2
87	Bogatyrev N.V. (BNV2873)	1					ban	ban
88	Ivanova (nahi1)	1					1	2
89	salmanov (onlu)	1					1	2
90	Chepovskaya Yu.I. (Solllary)	1					1	2
91	Nos Ya. (yana_nos)	1					1	2
92	Familiya E.N. (SQLGrandMasterrr)	1					1	2
93	Krasavtseva O. (olivkap)	1					1	2
94	Sadomtsev A. (Artemucho)	1					1	2
95	Pushkarev S. (PSV_n)	2					1	1
96	Gundaeva (Elgunna)	2					1	1
97	GUJARATHI (VAIBH001)	2					1	1
98	Mikhalin (ultrahacker)	1					1	1
99	Kuskova A. (Alandra)	1					1	1
100	Alex A.A. (alexalex68t)	1					ban	ban
101	Sergeev A. (f_train)	1					1	1
102	qq Q.Q. (stormxgod)	1					1	1
103	piopio5 (piopio5)	1					1	1
104	T R.J. (jenra)	1					1	1
105	Rakhmanin (peppersouls)	1					1	1
106	Bobrovskij V.A. (lantique)	1					1	1
107	Askerov R.R. (ramil_as)	1					1	1
108	asdasd A.A. (7856s4r564h56gz4kug)	1					1	1
109	FFlsls F.F. (FFlsls)	1					1	1
110	Krasovskij E.A. (pegoopik)	4
111	Koptel'tsev V. (selber)	4
112	em S.A. (Revaniche)	3					ban	ban
113	Tulegenova Z. (ziko09)	3
114	Umarova (ChelseaBlue)	3
115	Vyazovetskov A.S. (alex_v)	2
116	Arutyunyan A.A. (ARTUR1100)	2
117	Vasil'ev N.A. (Slowpokeborn)	2
118	Obozkanova N.A. (Nussi)	2
119	Chibisov S. (ss_chibisov)	2
120	Khokhlov (TermiDD81)	2
121	Odnokurtsev (AlFochino)	2
122	Lovchanovskij V.P. (lovcha_v)	2					ban	ban
123	Savin .V. (banana_crepee)	2
124	Lesha A. (Lesha Writer)	2
125	INYEGAMOKUMANA T. (Tooye)	2
126	Tommi R. (RussellSQL)	2
127	Klokova S. (klokova_sv)	2
128	Abdimital kyzy Zh.-. (Zhumagul_)	2
129	Kim V.V. (Victory13KiVi)	2
130	Tarchyla (Goblinger)	2
131	Bondarenko E. (bonelena)	1
132	Zuev N.S. (CTALKEP)	1					ban	ban
133	Kurochkin P.A. (qwrqwr)	1
134	Woland (Wolandd)	1
135	Khasanov E. (mr_Eduard)	1
136	moryarty N.A. (immemoryoo)	1
137	Denisov D. (Warpach)	1
138	Romanova (brayala)	1
139	Kassymbayeva (kkks)	1
140	Nasibullina G. (anomaly1)	1
141	Pazynyuk A.V. (pazynyuk_andrey1)	1
142	Kostyuchenkov P.I. (Poohx)	1
143	Ryzhakov Yu.A. (Yurchello68)	1
144	Koloskov (Art_Dart)	1					ban	ban
145	Grigoreva A.S. (sasha.q)	1
146	Kangaro (Kangaro)	1
147	Petrov P.P. (Pod123)	1
148	Klimenkova N. (klimnina)	1
149	Gordienko P.G. (PyotrG)	1
150	Pantiushkin I.I. (Zimbabaz)	1
151	I I.A. (Azimut130)	1
152	Sanni A. (W_Squirrel)	1
153	qwerty Q.Q. (qwezzzzz)	1
154	B K. (Error401)	1
155	Krasnoperova C. (FuyuNoMangetsu)	1
156	Mareev A.S. (malaid)	1
157	Tsygankov P.I. (Pavel Tsygankov)	1
158	Belyaev K.A. (Grotesque)	1					ban	ban
159	khayrutdinov D. (6000)	1
160	Burov (incredible93)	1
161	Kartavtseva A.S. (Sasha Kartavtseva 94)	1
162	O (janeoosql)	1
163	Bel'skaya M.G. (Zhigimont)	1
164	Esipenko A. (droyd)	1
165	Simonov V.A. (Vasilij84)	1
166	Dogadov S.V. (Serzho)	1
167	Aro E.F. (Ekaterina Araud)	1					ban	ban
168	Bakhytzhan A.A. (chauklet)	1
169	Najik (Najik7)	1
170	Sarkis'yan G. (gennadi_s)	1
171	Gulin N.S. (asdasgasdf)	1
172	Kuznetsov (GloomyFox123)	1
173	Titov (mahaon_1999)	1
174	Vasilenko S.V. (//Kit//)	1					ban	ban
175	Rodin (uoloki)	1
176	Jcvd6 (Jcvd26)	1
177	Ololo (Zeek321123)	1
178	Kudaev (kanbust)	1
179	Yunusov (imizakas)	1
180	Popov G. (Nimble45)	1
181	Moskvina E.A. (lib3thil)	1
182	Korenevskij S.S. (Ducktor)	1					ban	ban
183	Medvedev G.D. (GregorR)	1
184	Aliyev V. (Vussy)	1
185	Dvornichenko E.A. (Chaika_)	1
186	R. (Wra1th)	1
187	Tal Y.F. (YTal)	1
188	Muratov D.A. (Enovostuck)	1
189	Korolev R.V. (zouker)	1
190	Shaikh (Angy33)	1
191	Bratslavskaya V. (molvasha)	1
192	Lysykh V.K. (Usilitel')	1
193	Kislyakov D.V. (EggDestroyer)	1
194	Boboeva (Kiba)	1
195	Zdrobilko D.V. (Podorozhnik_1703)	1
196	intek (wrlu)	1
197	Boyarintseva E. (eleonbor)	1
198	Goldobin E.G. (prm259)	1
199	Vlasov (kirill181992)	1
200	Mironov (Neuhov)	1
201	Sharbatov Y. (YusifSH)	1
202	Ula (Straus!)	1
203	Lyubimenko E.V. (lenwa)	1
204	Evgen'ev (gek_c)	1
205	Duisenbayev (3UMF)	1
206	Alasgarov T.M. (tural_alasgarov)	1
207	Razinkova V.A. (ViktoriyAnatolevna)	1
208	Grudtsyn (CheSeVee)	1
209	Syrtseva V.A. (syrko)	1
210	Maz T.G. (TatyanaMaz)	1
211	Serbov (Fugas_33)	1					ban	ban
212	Murat M. (murat_mukhammed)	1
213	Sedakov M. (gamigami)	1
214	Komissarov E. (Lalafa1)	1
215	Ivanov I. (aoaooaoaooaoaooaoa)	1
216	Islamov A.R. (Moonex)	1
217	Vasil'ev A. (Sasha_7891)	1
218	Pugacheva A. (pugacheva)	1
219	... (scio_nihil)	1
220	- V. (Varabi)	1
221	Vor (Daschutka)	1
222	Kim D. (DkimsonSQL)	1
223	Akbaraliev S. (shokh023)	1
224	Korotkevich I.A. (somnambula)	1
225	Kartashov E. (Eu_etc)	1
226	edmond2 (edmond2)	1
227	Abbasov I. (ibrahim_@2005@)	1
228	Deus M.-. (Michael Deus)	1
229	Golyandina (nap@)	1
230	Margiev M.E. (Margulik)	1
231	Avdeeva D.A. (daryaayrad)	1
232	Kungurov A. (Alexey10)	1
233	Ermolina A. (Varpi)	1
234	Ushakov G.V. (uzvcw)	1
235	sule (stacy_super)	1
236	Salimgareev A. (MegaOptimusPrime69)	1
237	Sinitsyna A.V. (apchkhiii)	1
238	Mavrin P.P. (ultrider)	1
239	Semenova (Tasecomms)	1
240	Novikova (maria105)	1
241	Krajnova I.S. (Irina13)	1
242	Abaiuly R. (rakhatzzz)	1
243	Lezhnin A. (LagerBier)	1
244	Tynybekova G.R. (Gulaisha)	1
245	Usubalieva N. (Nuri1989)	1
246	Dvoryankin D. (DIPP4IK)	1
247	Unregistered	52

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References