Today's statistics at "SQL Exercises"

October 24, 14:42 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	Sh S. (junopark1)	3			6	9
2	Mahmoud (developer1086)	1	1	-2		2
3	Voronina (dash_vrnn)	1					ban	ban
4	Klimontova M.A. (white1804)	1					15	27
5	Klokov V.A. (vlcl3)	1					ban	ban
6	ismagilova (zuhrafirst)	1					15	21
7	Sarkeev A.S. (kj[)	1					15	20
8	Chebaev D.O. (firgost)	1					14	20
9	Bajraktar A.I. (DozenZozen)	1					12	20
10	Sajfiev A.R. (Sames)	4					15	18
11	Ivanov (bpp4340)	2					15	18
12	Kolchin M.M. (KolchinMaksim)	1					15	18
13	qwerty (lloeoww)	1					ban	ban
14	Zakirov B.G. (Bkyc)	1					ban	ban
15	Valiullin E.A. (DaRk12362)	1					13	16
16	Klochkova D.A. (Daria_Klochkova)	2					10	15
17	Bal (CRay2)	2					9	15
18	Gafarov I.I. (il'yasvvv)	2					ban	ban
19	N A. (alemona)	2					8	14
20	Gorbunova S.N. (vuiiioyyy)	1					7	14
21	Bochkov R.A. (Paltus)	1					ban	ban
22	Lykov (BenyDix)	3					6	10
23	Zakirov (Bkyc?)	1					ban	ban
24	Petrov I. (kod_sutuloi_sobaki)	1					6	9
25	popp (chikengan01)	2					ban	ban
26	Emel'yanov (pepe13123)	2					ban	ban
27	K E. (FQ)	2					7	8
28	Chirikova N.V. (NataliCh)	2					5	8
29	Karimova (K_H)	2					5	8
30	Khan R.E. (SQL_Manace)	1					5	8
31	qwerty (Qcold01)	1					ban	ban
32	Belkov D. (Belkov2026)	1					4	8
33	Zhukov (Zhoridan)	1					6	7
34	Ivan I.I. (Kira777777777777777777777)	1					ban	ban
35	Emel'yanov (Q-COld22867)	1					ban	ban
36	Voronina K. (xxcvv)	2					5	6
37	Govnyushkin V.V. (hustle_tales)	1					5	6
38	Denisova A.A. (IrisSska_6)	1					4	6
39	Khoroshavin A. (fr0stlex)	1					4	6
40	sangre P. (sangre)	1					3	6
41	Revin L. (Dog_WaterSQL)	3					5	5
42	Panifatov (LuterPV92)	2					5	5
43	Fedoseev (qwe qwe qwa)	2					5	5
44	dsgsg S.S. (figer)	1					5	5
45	s P.V. (Pullecino)	2					3	5
46	Seredin V.S. (JoDaH_JoEsTaR)	1					3	5
47	Semenov V.N. (FullJoin77)	1					3	5
48	Sedova (pichfae)	1					4	4
49	Eremenko S.V. (DarkLead9087)	5					3	4
50	qq Q.Q. (stormxgod)	4					2	4
51	Karimov K.V. (bemused)	1					2	4
52	Trofimov D.V. (bongO1896)	1					3	3
53	Starostina D.V. (Dar'ya Starostina)	1					3	3
54	Khuzagaripova (bdlaba)	3					2	3
55	sam S.S. (sammm)	1					2	3
56	akhssassi A. (Akhssassi)	2					2	2
57	Beka1 B.B. (Beka666)	2					2	2
58	Nacharov A.Yu. (alexNachos)	1					2	2
59	Oganesyan K. (kakao21)	1					2	2
60	Larsanova D. (ddialars)	1					2	2
61	gants S.B. (sakyts)	1					2	2
62	pro (propvava)	1					2	2
63	7shkin S.V. (Slavnik)	2					1	2
64	Mishenev M.M. (Mishenev Mikhail)	2					1	2
65	r A. (arb_)	2					1	2
66	Peshekhonova Yu. (Hartwidder)	2					1	2
67	Krivets M.S. (Maria Krivets)	2					1	2
68	Shure V. (VladimirShure)	1					1	2
69	Zov (Dildobek1488)	1					1	2
70	interesniy C. (a_kkxr)	1					1	2
71	Tihomirov N.V. (Tetr654)	1					1	2
72	Alekseev D.S. (snwr)	1					1	2
73	Romanova A.D. (chipsik)	1					1	2
74	Udartsev D.S. (pena228)	1					1	2
75	Belyaev (belyaev2022)	1					1	2
76	Pavlov A.A. (Sashulia88)	1					1	2
77	Khisamov E. (qwerty.py)	1					1	2
78	Zimin A.M. (AMZimin777)	1					1	2
79	Dubrovskij (Novian)	2					1	1
80	Cherednichenko A. (alexei_86)	2					ban	ban
81	Zinchenko (Ivaning)	2					1	1
82	Egorov N. (Negorov)	2					1	1
83	Kononyuk Ya.A. (Gena16)	2					ban	ban
84	Grigor'ev M.I. (gdetotam)	1					1	1
85	Veremeev G.V. (Gleb2v)	1					1	1
86	Bob (foxtailer)	1					1	1
87	Lapin (MyNameIsAndy)	1					1	1
88	Maklakova T.S. (Ms.Aelita)	1					1	1
89	Pavlyuk (NatashkaYa)	1					1	1
90	Mashutin (Andruhanez)	1					1	1
91	Gabdrakhmanova (AG_BD)	3
92	Krasovskij E.A. (pegoopik)	2
93	Minashkin A. (Wallrider)	2
94	Yakupov (OY_77)	2
95	Markin N. (Qmaro)	2					ban	ban
96	Shkabura O. (olga1305)	2
97	Sarkis'yan G. (gennadi_s)	2
98	Sulejmanov (Arkadoce)	2
99	Davydova M. (Mariya1723)	2
100	Yolokhov (fazzone)	2					ban	ban
101	Trubitsin T.A. (SoTeNo4eK)	2					ban	ban
102	Kochergin S.A. (stanislav007)	2
103	Demessin Y. (Absolute_Batman_12343)	2
104	Smelyj I.N. (dvyrke)	2					ban	ban
105	Shulepov N.A. (MortyClouD)	2
106	Umur (leva_mgn)	2
107	Varenikov D.M. (Dmitriy Varenikov)	1
108	Sal'nikov Yu.A. (Yriy S)	1
109	Etuvye M.A. (emax)	1
110	Koptel'tsev V. (selber)	1
111	Vinogradova S.M. (Tigra1)	1
112	Stul'nev R.O. (kalter1213)	1
113	Prishivalko (Korifa)	1
114	Ushakov A.Y. (ushakov94)	1					ban	ban
115	Filatov D.D. (Anticoder)	1
116	Babaev U. (Usmen)	1
117	Yan .... (Alexander111)	1					ban	ban
118	Glukhova Yu.V. (Narasslabone)	1
119	Filin A. (eag1e-0w1)	1
120	Gusev A.O. (NowOrNever)	1
121	Valiev I.A. (ilfik)	1
122	Rodin (uoloki)	1
123	R. (Wra1th)	1
124	Egorov (max2005)	1
125	vetrova A. (sacikn)	1
126	Viktorov (greymangrey)	1
127	Ermakov A.S. (Mr.Ermak)	1
128	Bat A. (alex.bat)	1
129	Ivanov (Goldmesa)	1
130	Bratsykhina T.A. (tatavia25)	1
131	Filippov N. (Niik0laii)	1
132	Salikhov R.A. (Ruzik707)	1
133	Kuznetsov V.P. (qizz220)	1
134	Artemev L. (Leonid S.)	1
135	Alekseev N.D. (NikitaAlexeevD)	1
136	mustafina (Mustafina)	1					ban	ban
137	Dugin D.R. (DYGIDAI)	1					ban	ban
138	Suntsov K.O. (KirillSuntsov11)	1
139	Burov K.M. (gopher_)	1
140	Iutinskij D.E. (dimaiuuu)	1
141	Vasil'ev V. (Valeriy123)	1					ban	ban
142	Khuzagaripova (EKh_BD)	1
143	Smirnov A.E. (p4tk)	1
144	Evdokimov A.A. (Dark_Tanyan)	1
145	Lepilov (Sahalyar)	1
146	Skryabin D.A. (kotsuro)	1
147	Makushin A.V. (sqldemon2)	1
148	Efimenkova Yu.I. (julia.efa)	1
149	Kazantsev I.N. (Ivankazantcev it-4)	1
150	Rud' V.V. (drmbsv)	1
151	Bahasloski (FelixBGS)	1
152	Maslennikova V.O. (valya.maslennikova)	1
153	Sultanova D. (DashOk_84)	1
154	hrapovich (weqha)	1
155	givenchy (dfas)	1
156	Pankova E. (p.e.n.ka)	1
157	Tk T. (TImuchen)	1
158	Tsyplakov S.R. (RufTECH)	1
159	Nafikov A. (Amir1408)	1
160	Petrashevich E. (alexi600)	1
161	Emel'yanov (bppppp4340)	1					ban	ban
162	jsjdsjdjs S.A. (ffdfsfsf22223)	1					ban	ban
163	Chernov A.V. (charlie172)	1
164	Troitskii V. (PoniFromKcity)	1
165	Alabsi A. (Arwa Ahmed Alabsi)	1
166	Chicharin D.A. (0_Denis Chicharin_0)	1
167	Kononyuk Ya.A. (Gena14)	1					ban	ban
168	Okhotskij A.D. (GentlyMe)	1
169	Gikal J. (zhorikante)	1
170	D O. (OlgaOlga2026)	1
171	abd (hodjik7)	1
172	Kolesnikov T. (jsypackman)	1
173	Serebryakov A. (Aleksei Serebriakov)	1
174	Pelk (Dasda2wqesaddx)	1
175	Taubin V.A. (cdkiller75)	1
176	Ustinov (rdi2002)	1
177	F B. (BoRis161)	1
178	Unregistered	28

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References