Today's statistics at "SQL Exercises"

November 29, 11:00 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	lls (evelexia)	1			11	13	10	16
2	Kirillov A.A. (FaithenEb)	3			10	11
3	Galiyanov Roman R. . (GalianovRomanDKIP404pm -5)	1			10	11	ban	ban
4	Mitdziev A.G. (alexou999)	1			7	8
5	?mіrtaj R. (Rakhat05)	1			5	5
6	Zholdaskhan B. (baikenello)	2			1	1
7	M (DanilM2304)	1			1	1
8	Kirill E.R. (KirillEr)	1			1	1
9	Bakhtin D.A. (BakhtinDA)	3					ban	ban
10	Bogdanova S.A. (pulemetchitsaa)	2					ban	ban
11	Kuleshov D.P. (Kuleshovapln)	3					ban	ban
12	Minaev A.K. (andrey181)	1					ban	ban
13	Minaev A.K. (iqos333)	1					ban	ban
14	Zhuravlev S.S. (loonsige)	1					ban	ban
15	Najdina E. (@Ekaterina)	1					13	16
16	Toleubaj A.S. (su1tan)	1					11	16
17	Eugene (X-Rayffffffffffffffffff)	1					10	16
18	Zhanysbek K.Zh. (Linkvon2)	1					ban	ban
19	Kazankin S.G. (500400)	1					7	12
20	Ordabek E.A. (Erlanbek)	1					6	11
21	Revenko A.S. (revenkoalena)	1					ban	ban
22	Zajtsev M.A. (Bobi Dik)	1					6	9
23	Lavrov A.V. (lavand_05)	1					5	9
24	Ajdarbek N.A. (nurbek0472)	1					5	8
25	Gershuk (blit9)	2					6	7
26	Yakh'yaev T.R. (Tural)	1					ban	ban
27	Bayaly A.B. (Asl7292)	2					4	6
28	Zver'kova S.S. (lana333)	1					5	5
29	Petrun'ko A.A. (Gandzhubas)	1					5	5
30	Drozhalin N.A. (ReturnT)	1					5	5
31	Peshkova (S_0_0_N)	1					5	5
32	Ermekbai D.G. (diko22)	5					3	5
33	svoi I.M. (Korday)	1					ban	ban
34	Temirlan K.A. (Tikosh2005)	1					ban	ban
35	T A.A. (Ali919)	2					3	4
36	Tunev A.D. (sank63)	1					3	4
37	Turashbay N.Y. (Nurgali...)	1					3	4
38	Markov (al.mark)	1					2	4
39	Serikbai B. (Bekas20)	1					2	4
40	Eremenko D.S. (BillyNoGami)	1					2	4
41	makarova R.R. (makarych production)	1					3	3
42	Mel'nikov D.G. (Ashenknight659)	1					2	3
43	Zhestkov I. (Darkne$$)	2					2	2
44	Nevazhno (Nevagnokto)	1					2	2
45	Kulshashar Z.R. (ZHAMBO)	1					2	2
46	Inkognit A. (superSanya)	1					2	2
47	dsbhjv D.B. (ssfddxxfd)	1					2	2
48	Dujsen (Zake1)	1					ban	ban
49	Mareev A.S. (malaid)	1					1	2
50	Nikolaev (Rick Scott)	1					1	2
51	Oleksyuk S.D. (cjyzjktrc.r)	1					ban	ban
52	Igoshina K. (Ksyusha I.)	1					ban	ban
53	? (acdncpac)	1					1	2
54	Mah A.A. (Tenshii77)	1					1	2
55	Mokhov K.A. (Kosta1123)	1					1	2
56	Rakhmanov R.R. (rassa228)	1					ban	ban
57	Belyaev Yu.V. (DarKKSide)	1					1	2
58	Dashinimaeva (dsvsusu)	1					ban	ban
59	Temir R.A. (Rus001)	1					1	1
60	Frolovich T.S. (tartalletta)	1					1	1
61	Anako (goddamitw)	1					1	1
62	Rubtsov R.A. (Romario549)	1					1	1
63	Bakhtin D.A. (Clawwer1)	4
64	Krupskij M.A. (Korchak)	3
65	bekbotaev S.B. (bolat123)	3
66	Anas (CodeSavyMind)	3
67	Revenko S.S. (Sofia Revenko)	2					ban	ban
68	Vinogradova E. (-Helen-)	2					ban	ban
69	User N. (mybadsql)	2
70	Sidorov A.A. (AleksandrSynPM)	2					ban	ban
71	v3pr (styx15)	2
72	Khalidolla A.A. (pap1rous)	2
73	la L.L. (lplps)	2
74	syber P. (syber punkq)	1
75	Livshits (@Valeriy)	1
76	Naumova A. (asterisky5123)	1
77	Ivanov (ivan8321)	1
78	Mashteev A.T. (LANse666)	1					ban	ban
79	Prokopenko L.A. (Sulfat)	1
80	Shajkhutdinov M. (dep0n)	1
81	Kryukova E.A. (elenelis)	1
82	Kamenskii K.K. (Che1881)	1					ban	ban
83	tom (tom24)	1
84	R. (Wra1th)	1
85	Korolev R.V. (zouker)	1
86	Orlov A.N. (aleks.or.an)	1
87	Lysykh V.K. (Usilitel')	1
88	Khasanov R. (Musi Pusi)	1
89	Abramov V. (Vitaminez)	1
90	Rakhat D.Zh. (danikrr)	1
91	Vyl'yurova A.A. (Castle_of_stress)	1
92	Bassan Y.Z. (Bassan)	1
93	Tawirbaev A.A. (KNPVRKChPAA)	1
94	Alimbekova B.?. (Baknur)	1
95	Sukhotin A. (Artem_77)	1					ban	ban
96	Levashov (Sephez)	1
97	Krotov N.R. (KrotovNik)	1
98	Moldash K.A. (keraaaa)	1
99	Korovin D.Yu. (t1quuuu)	1
100	Bahin N. (Bahin)	1					ban	ban
101	Alikulov Z.D. (Ziyovuddin_5876)	1					ban	ban
102	Belykh A. (AnnaBelykh)	1
103	Biryucheva A.R. (nastwix)	1
104	Vityuk S.Yu. (Vityuk Sofiya)	1					ban	ban
105	Shajdurova K.A. (shaidurova2004)	1
106	Nasibbeyli C. (REIS)	1
107	Shaphatava V. (Mr.Vakho)	1
108	Verenich (luciifer)	1
109	Black M. (qwe132)	1
110	N (Velzel)	1
111	Mozol' R.A. (stxnxhxxd)	1
112	Topin P.A. (ProkhorBane)	1
113	Loskutov V.S. (loskut01)	1
114	Shestochenko A.E. (artemdemo1)	1
115	Nasonov A.S. (Ded_Oleg)	1
116	poms (tyleryarik)	1
117	Pozdeeva A. (Alpo7110)	1
118	nega B.X. (ham77)	1
119	Dmitriev I.V. (wra1th3r)	1
120	Dubovoj I. (Shaza)	1
121	sarin A.T. (Sarin_01)	1
122	Ivanov (bu_tao)	1
123	Ivaerv (GermanIvanov)	1
124	Unregistered	13

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References