Today's statistics at "SQL Exercises"

July 11, 20:32 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	Z D. (staldem)	3	2	3		3	1	2
2	Shibaev (saah)	2	1	40		1
3	Vinogradova S.M. (Tigra1)	1	1	122		1
4	Bekk (Erko2004)	1	1	1		1
5	Odnokurtsev (AlFochino)	3			1	1
6	Calais (Laperuza)	4					13	19
7	Tolmachev R.S. (Ruslan Sergeevich)	2					7	12
8	Sotnikov D.V. (locksmich)	2					6	12
9	Khassanov D.B. (danyokak)	1					7	11
10	Pavlyuk (innespavlyuk1)	1					8	9
11	Vysochanskij D.V. (ddrproxy)	1					8	9
12	Snyusberg T. (snusberg)	3					7	9
13	Egorova (Milka8)	1					7	9
14	Zaripova E.R. (elinnazr)	1					6	9
15	Khakimova M.R. (MavjudaHakimova)	3					5	8
16	Serdyukov I.S. (Seeerd)	2					5	8
17	Khametov I. (IKhR)	1					6	7
18	Srmikyan (davusha)	1					6	7
19	Zelenkov M.N. (Matovyj)	1					6	7
20	Petrov M.K. (Gerr Kartoshechka)	1					4	6
21	bogachenko (dabldzhej)	1					4	6
22	Grezneva N. (celestica)	1					3	6
23	Matushkina (AlenaM15)	2					5	5
24	Sukhin (Artem797)	1					5	5
25	Batyukov (beermood)	1					3	5
26	Potekhina E. (Ekatawaynot)	3					4	4
27	Zhitnyak I. (IvannaZhSql)	2					4	4
28	Terlovaya T.V. (Mike Vazovsky)	1					4	4
29	Sevoyan V.A. (qxricom_m)	1					4	4
30	Galfik (scio_nihil)	1					3	4
31	Zhukov N. (sariya_)	2					2	4
32	Sobolev (SRD_NN)	1					2	4
33	Gusev (superguzlik3228)	1					2	4
34	Zubkov D. (Dm54)	1					2	4
35	gusarov I. (lllia)	1					2	4
36	Aleksandrov (SMAK11)	1					2	4
37	yehor Y. (beginner0)	2					2	3
38	Bilyk K. (ArchiKate21845)	1					2	3
39	Noskova A. (Nosochek)	2					2	2
40	Pushkarev S. (PSV_n)	1					2	2
41	Polikarpov K. (kir0206)	1					2	2
42	Altashin S.V. (burrito)	1					1	2
43	Vodolazova A.V. (Vodolla)	1					1	2
44	Malakhov A.V. (JLaKeR)	1					1	2
45	Platonov A. (Golden-Times)	1					1	2
46	Strukov (StrukovSA)	1					1	2
47	Burkaev T.T. (BadWord)	1					1	2
48	Rezvan (SilentLand33)	1					1	2
49	Urakina K. (Ksu774)	1					1	2
50	Abdulov F.N. (FuadSQL)	2					1	1
51	Sokolov S.P. (BAN2202)	2					1	1
52	Ivanov V. (vityansk)	1					1	1
53	Lyutenko S.A. (Machine_head)	1					1	1
54	Narembekov T. (fountaineww)	1					1	1
55	Ivanova (nahi1)	1					1	1
56	Bar N. (19_Nikol@y91)	1					1	1
57	C A.S. (AwakenedTRM)	1					1	1
58	Maksimenko S.Yu. (msavia)	1					1	1
59	Krutoj V.A. (prosqlvladimir)	1					1	1
60	Sukhadeve N.R. (Nitin1710)	1					1	1
61	Israpilov R.O. (Ruslancik)	1					1	1
62	Balganova E.A. (kangnam17@ya.ru)	1					1	1
63	Desu (desu12)	1					1	1
64	Trushnikov M.N. (chajan)	3
65	T. (Tovarisch)	2					ban	ban
66	Konovalov (Areksei)	2
67	kovaleva U.K. (Mr_GadJet)	2
68	Kotova (elilia)	2
69	Rodinova (espe)	2
70	Korolev A.A. (Ereticheskij Chajnik)	2
71	Allaberenov (Asinus_Buridani_inter_duo)	2
72	Skrylyova (Anastasia555_55_5)	2
73	Andhare A.R. (Atharva Andhare)	2
74	M M. (mmmmm820)	2
75	Koptel'tsev V. (selber)	1
76	M (MrQzZza)	1
77	Matveeva (MaryM)	1
78	Kozhevnikov A.M. (kojew)	1
79	Ivanov (WillSom)	1
80	Mochalov M.M. (Zero_Shadows)	1
81	Vostokova A. (SawneyV)	1					ban	ban
82	Slonova (SweetElephant)	1
83	Tolstoi (Toy Soldier)	1
84	serezhin (svserezhin)	1
85	Adel'shin D.A. (Dim0n21)	1
86	Kokoshyan A. (Tutti frutti)	1					ban	ban
87	Karshtajn V.M. (WarKelly)	1
88	Ivanov I.I. (vlad91)	1
89	Ivanov A. (Artem3412)	1
90	N T. (TarasN)	1
91	Garifulla N. (Nurik2003)	1
92	Bembeev A.V. (karagiozis)	1
93	RstB (RstB)	1
94	Todua D.M. (DavisBomonec)	1
95	Plotnikov (Seegment)	1
96	Khrol N.S. (Natalia_Khrol)	1
97	pppes (ququda)	1					ban	ban
98	Frolov Yu.Yu. (YuFr_DEV)	1
99	Prajs A.A. (Abort_Price)	1
100	Belousov (IdOnTlIkEpRoGrAmMiNg)	1
101	Dyagileva O.M. (Olya Dyagileva)	1
102	Z A. (Cooter)	1
103	Lebedev P.A. (PNcbc)	1
104	Rodin (uoloki)	1
105	Kameneva (kristachak)	1
106	Sikalova E.S. (sikalovaliza)	1
107	Kushnir S.A. (Wishmaster190281)	1					ban	ban
108	Shakaryan B. (bogdanshakaryan)	1
109	Malinchik K.D. (Skaipia)	1
110	P I.*. (IrinaPetr)	1
111	Tleumbetov R.O. (Rrussell)	1
112	Odegov A.I. (KovroLitik)	1
113	R. (Wra1th)	1
114	Chelyshev A.V. (DarthYoda)	1
115	Majoros A. (Angyal88)	1
116	Uvarov D. (dmitrii_goose)	1
117	Lysykh V.K. (Usilitel')	1
118	Pavlovets A. (mazadron)	1
119	Artem'eva (Fiska)	1
120	Pilosyan D.O. (dianapilosyan)	1					ban	ban
121	Baranova V.A. (Test081)	1
122	Vakhranev N.M. (kAtsu2718)	1
123	Mishra (Ginger457)	1
124	Pilosyan D.O. (diiaane)	1					ban	ban
125	Karneev A.M. (Artem Karneev)	1
126	Ganiyev A. (lernanto)	1
127	Murat M. (murat_mukhammed)	1
128	Scherbakova M. (Leveret123)	1
129	K. A.V. (AlexanderK84)	1
130	Vasil'eva (Julia-julflorid)	1
131	She D. (Diamond_666)	1
132	Troyanov A.S. (Anatolij Troyanov)	1
133	Drakovskiy S.A. (Drakon27)	1
134	starcev T. (timstars)	1
135	Pillai A.A. (ashwiniajikumar)	1
136	falke S.Y. (shruti falke)	1
137	kafka (kafk4)	1
138	Bhatt S. ($aketh)	1
139	Demin I. (Rey619)	1
140	Zavadovskij A.A. (wellhior)	1					ban	ban
141	Ter-Martirosov A.A. (AArkadij)	1
142	Ivanova V.I. (zhena khosoka)	1
143	Koblov D. (Danya Koblov)	1
144	Ryzhov V. (Ovip Lokos)	1
145	Pivov G.A. (pionso)	1
146	makarova V.I. (vikki9002049)	1
147	Pischina D.A. (TheDpA)	1
148	Kabdrashitov M.O. (merekekabdrashitov)	1
149	Razumova P.P. (Polina2234r8384r)	1
150	Ekaterina (Ketrin_Kan)	1
151	Elena E. (Kudesnitsa)	1
152	Khvedelidze M. (MariamKh)	1
153	Mu V.P. (Kaplivnos)	1
154	Unregistered	21

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References