Today's statistics at "SQL Exercises"

January 21, 10:56 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	Safronov P.A. (Paulus73)	1	2	56		3
2	Betin A.V. (betin.orig)	1					11	14
3	Klyuev D.A. (molodoyway)	1					11	12
4	Diablo (JonDiablo)	2					9	11
5	Men'shakova G.S. (MGALA)	1					6	9
6	Poduzov A.A. (Alkez13)	1					7	8
7	Khmel' I.A. (Il'ya Khmel')	1					6	7
8	Shaniware H.P. (Himanshu Shaniware)	1					6	7
9	Savvateev (YanarCL)	1					6	7
10	Ryazantseva V. (Viktoriya Ryazantseva)	1					6	7
11	Safonova S.A. (SofiaSA)	1					4	7
12	Lukashenko M.N. (marialukashenko)	1					4	7
13	?ojshybaj A. (Arman ?ojshybaj)	2					4	6
14	Umarova I.O. (umarovairina)	1					3	6
15	Orlova Ya.S. (YanochkaB)	1					3	6
16	Kuznetsov E.M. (Chtotakoe)	3					5	5
17	pranjale A.M. (ciphera)	1					5	5
18	Surkov E.V. (suevg)	1					5	5
19	Novikov A.A. (asdqwe12)	1					4	5
20	Shtan N.A. (Nata77665)	2					3	5
21	Molostova A.A. (AngelinaMolostova)	1					3	5
22	Akhmylin M.V. (akhmylin)	1					3	5
23	Lebedeva S.A. (Silverino)	1					4	4
24	Kajdash S.A. (sonkalala7d)	1					4	4
25	Gatelina O. (Sevilian)	1					3	4
26	Katalonets A.N. (Catalonec)	1					3	4
27	Ekhlakov I. (pomidor2525)	1					3	4
28	EFIMOV E. (EFIMOV_EDITS_PRIME)	2					2	4
29	Ivanov I.I. (vlad91)	1					2	4
30	atalaev (byterbrodSQL)	1					ban	ban
31	Malakhov (dimmal)	1					2	4
32	Adamov A.V. (fruitful)	1					2	4
33	Tubolev (D2bolev)	2					3	3
34	Bulatov R.M. (extTy)	1					3	3
35	Aliyev V. (Vussy)	1					3	3
36	Dunaev D.D. (Stanilav_MoGGGilevski)	1					3	3
37	salgalova A.K. (_Lisenok_)	1					3	3
38	Sipin D. (pandaatwork)	1					3	3
39	Krivosheeva M.V. (SQL_progM)	1					2	3
40	Kozlov A. (Antoa)	1					ban	ban
41	Tembhurne P.P. (prajkta)	2					2	2
42	Tikhonov (Retpak)	2					2	2
43	iakovlev (egociant1)	2					2	2
44	Shigapova I.I. (Dzhokonda)	1					2	2
45	Gorlyshkov M.S. (Smail)	1					2	2
46	Kolpaschikova (ruflufy)	1					2	2
47	Zh A.Z. (albina96)	1					2	2
48	Belov (nekich013)	1					ban	ban
49	Makarova A. (JuStudent)	1					ban	ban
50	Ryabykin M.V. (Mikhail1704)	1					ban	ban
51	Belyak (TheTester)	1					1	2
52	Pitcil (fallsin)	1					ban	ban
53	wizard S. (Spin wizard)	1					1	2
54	Chunarkar O.A. (om_1217)	1					1	2
55	Kolesov S.B. (Kolesov Stepan)	1					1	2
56	Treshchalin (2manyfaces)	1					1	2
57	Kharlamov N.M. (Nikita03)	1					1	2
58	Weimer (ilwe)	1					1	2
59	Urakov A. (AndreyG0oD)	1					1	2
60	Paraschina A.M. (arinkapara)	2					1	1
61	family_name1 (SotDeFrank)	1					1	1
62	Sheware S.R. (S@n@)	1					1	1
63	Marchattiwar T.R. (TaniRM)	1					1	1
64	raipalle K.S. (@rjuna)	1					ban	ban
65	Kirienko (fransuaza)	1					1	1
66	Kopylov A.A. (antonkopylov)	1					1	1
67	Samandar S.M. (Samhf)	1					1	1
68	inganimals N.H. (phuck)	1					1	1
69	Koptel'tsev V. (selber)	2
70	Kapelyushnyj R.N. (Moon937)	2
71	P I.*. (IrinaPetr)	2
72	Sadullaev D.?. (lxxst)	2					ban	ban
73	karlekar V.A. (vedant@123)	2
74	Shaik N. (sr18)	2
75	Andreeva (TA2026)	2
76	- (nekich012)	2
77	Ogneva (Pukh 2016)	2
78	ii I.I. (gbdgdfmdflk654123)	2
79	Kurochkin P.A. (qwrqwr)	1
80	L S. (S_lsn)	1
81	Polyakov V.M. (rock_4)	1
82	Dementiev D. (demen_d)	1
83	Livshits (@Valeriy)	1
84	Lyustochkin K.S. (lamp2502)	1					ban	ban
85	Buntova A.V. (Bunt)	1
86	Vanesyan A.A. (christina13487765)	1
87	Komarov A.N. (Shveda Saulya)	1
88	Necheukhin M.A. (MikhailN1925)	1
89	Ionov A. (kofesmolotkom)	1
90	turkov K.T. (kemran)	1
91	Mikhajlov A.A. (Randei)	1					ban	ban
92	Tutorev (belfi911)	1
93	Molchkov (97maa)	1
94	Yumenskaya O.D. (Mod_00)	1					ban	ban
95	Truskov V.O. (mariu321)	1
96	Ermakov D.S. (ErmakOFF)	1
97	Prokopenko L.A. (Sulfat)	1
98	Panicheva V.D. (_Vika_)	1
99	Kuz'min S.N. (Taeron)	1					ban	ban
100	Panfilov I.A. (BakaLover)	1
101	Boyarov A.A. (boyasha)	1
102	Ivzhenko K. (Kislorooad)	1
103	fioletovaya (fioletovaya2)	1
104	Glebushkin S.Yu. (Koboku)	1
105	Gubanov V. (Q43)	1
106	Priglebov A.M. (bladesan21)	1
107	Mamushkina P.G. (Polina Mamushkina)	1
108	Romanov V.O. (Brutalus)	1
109	Fomina S.A. (svet12pipet)	1
110	Skokov B.S. (leks$$)	1
111	Mordovin K.S. (lolkabob2024)	1
112	keyboardnorth (North West)	1
113	Nik_ 3. (Nik_1337)	1					ban	ban
114	Aniskovich E. (evgeniyaniskovich)	1
115	K D. (onay)	1
116	R. (Wra1th)	1
117	Agafonov A. (Alexeische)	1					ban	ban
118	Zhukov M. (n@gibat0r)	1
119	P Y. (blacter)	1
120	Ogneva (Badanyushik)	1
121	Moroz V.A. (chemicalfrost)	1
122	Gulyaev A.H. (Kharn666)	1
123	Belevtsev V.B. (vgdjv)	1
124	Kosyanenko D. (wrldxtw)	1
125	Kuzgov (halid_user)	1					ban	ban
126	Timofeev M.S. (timofeevms1982)	1
127	Gavrin (vladimir.g.s77)	1
128	Lysykh V.K. (Usilitel')	1
129	Gerasimovich S.V. (gerasimovic)	1
130	Kozhokeev D. (Drager13pt)	1
131	Vakulko A.V. (VAlexandrV)	1
132	Nazarov N.N. (FOX222)	1
133	Nikitin I.A. (Garik Pobedonostsev)	1
134	Rudovich A. (Rudovich)	1
135	Sobolev A.S. (SobolevAS)	1
136	N (Graf_Nero)	1					ban	ban
137	Kholkina (dimayulia)	1					ban	ban
138	Dushina T.D. (TaiDm)	1
139	Security B.C. (Bhuvesh Cyber)	1
140	Shinde A.S. (GhostFreak)	1
141	Maharramov A. (Maharramov)	1
142	Ilya I.I. (Ilya_123)	1
143	Bystrova N.V. (Hint11)	1
144	Vasenko (wsl*)	1
145	L M. (hdrey)	1
146	Udal'tsova N.A. (Natal'ya SQL)	1
147	Burde L.S. (Lokeshniburde)	1					ban	ban
148	chore P.P. (devil89)	1
149	Olotov (Andre1220)	1
150	Ermokhina (Fevy)	1
151	Dolgopolov Ya.M. (ANNAZBOL)	1
152	pushkova (blowsight)	1
153	Sadullaev U.S. (umidd)	1					ban	ban
154	Hbb A. (Arthbb)	1
155	Nanava D.B. (1ucky_Num83r_13)	1
156	Stanchin A. (Alexeishhe)	1
157	Tikhonova (alec_waste)	1
158	kdfd S.F. (alonswer)	1
159	Popelka (honi_mustard)	1
160	Sekret (emeraldboy)	1
161	Il'in (verdex4)	1
162	Golovanova (stacie)	1
163	Chernov A.V. (vindsf)	1
164	Kudaibergen A. (Kdbrgn)	1
165	Mori R.D. (RanmaruSW)	1
166	Anatolij A.V. (don2992929\)	1
167	Darkenbaj A.T. (Almaz_2007)	1
168	Unregistered	31

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References