Today's statistics at "SQL Exercises"

August 07, 15:09 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	Geist A. (Avgeist)	1			6	7
2	piopio5 (piopio5)	1	1	1	1	3
3	ss A.S. (SashaSS)	1			1	2
4	Gerasimovich S.V. (gerasimovic)	1	1	-7		1
5	Bessolitsyn I.V. (igor2338)	3					24	48
6	Barmina (huf)	2					15	26
7	baena A.S. (baena)	2					15	22
8	Kydyrov S. (SultanBeybars)	1					11	13
9	Dmitriev I. (Ilya_dm)	2					10	13
10	Lomakina (lomchik)	1					7	13
11	Titov (Mikulai)	2					8	11
12	pak (chimchininja)	2					7	10
13	Luneva D.A. (DLuneva)	1					7	10
14	Kolbai N.E. (Nurik666)	1					7	9
15	alena A.S. (alena_baena)	2					5	9
16	Popov I. (Student-mrudent)	1					5	9
17	Nozdrachev A. (nozddr)	1					5	8
18	Orazaliev E.S. (AkameEW)	1					7	7
19	Svistunkov I.A. (IvanSvistunkov)	1					6	7
20	Khajrulin R.I. (Rusel)	1					6	7
21	Saryglar (Daryma)	1					6	7
22	Venger I.V. (Vven_i)	1					6	7
23	zamanova (gulkh)	1					ban	ban
24	Kirichenko M.I. (lpbred)	1					5	6
25	GUJARATHI (VAIBH001)	1					4	6
26	Kharisov A.Ya. (Azamat777)	2					3	6
27	Smith S. (sam.smith)	2					3	6
28	Buk (sqlfighter00)	1					3	6
29	Sorokoletov D.E. (hehehdhhshsqn)	2					5	5
30	Rubanov M.I. (GodNaoborot2)	1					5	5
31	Levina A. (Anisiam)	1					5	5
32	Sidorov D.V. (abdfe)	1					5	5
33	Pumonov (7766655671)	1					5	5
34	Shas (alwayssb)	1					5	5
35	Antip (camamberlol)	1					5	5
36	Rikardov (Rikardio)	1					4	5
37	Sharafutdinova E.Yu. (ktshrfvt)	2					3	5
38	Zinchuk (Shade940)	1					3	5
39	Cherepanova A.R. (Alexandrina1.0)	1					4	4
40	Dobrynin (DanilDV)	1					4	4
41	Nurmammedov E. (eldarleki)	1					3	4
42	Vladimirtsev A. (Mostov)	1					3	4
43	asd A.A. (defiler__616)	1					3	4
44	Avdyunina V.D. (Ruibing)	2					2	4
45	A (Red__cat)	1					2	4
46	Khorunzhij E.A. (wuwuqw)	1					2	4
47	POLIAKOV Z.Yu. (Zzzdecb)	1					3	3
48	a A.A. (rdctfvygbuhjnk)	1					3	3
49	Sizonenko (maygly)	1					3	3
50	Altashin S.V. (burrito)	1					2	3
51	Yarullina L. (Lils)	1					2	3
52	Romanov A.A. (andromus)	1					2	3
53	Kotov V. (Vladosss1995)	1					2	3
54	Rudov D. (Big_mafusail)	2					1	2
55	Hen (Henchik)	2					1	2
56	Grigor'ev A.B. (lorra)	1					1	2
57	Strukov (StrukovSA)	1					1	2
58	Baykov N. (felfire)	1					1	2
59	penkova (sonya3)	1					1	2
60	Moldakynov A.A. (Nomad444)	1					1	2
61	Murat M. (murat_mukhammed)	1					1	2
62	Nikulenko P.A. (Flower1001)	1					1	2
63	Titov V.A. (va_titov)	1					1	2
64	Borisov D.R. (Dmitry.Bo)	1					1	2
65	Savchenko (Delfinchek)	1					1	2
66	Maslennikov A.S. (Maslennikov.Anton)	2					1	1
67	rodrigues R. (rayray1307)	2					1	1
68	Burov (incredible93)	1					1	1
69	B A. (aleks4sql)	1					1	1
70	Legkova A.O. (albebex)	1					1	1
71	Antonova (Elena_No)	1					1	1
72	Kozhukhova E.S. (ElizavetaKozh)	1					1	1
73	Minyurov E. (m.evgeniy)	8
74	Alferov I.D. (bbcx)	3
75	Sednev V. (Vitsed)	2					ban	ban
76	Bakshaeva E.A. (Feo16)	2
77	Litvinenko O. (loksana1)	2					ban	ban
78	Shigapova I.I. (Dzhokonda)	2
79	Muratov D.A. (Enovostuck)	2
80	Sairanbek D. . (sairanbek_darkhan)	2
81	Ivanov I.I. (mollyyy313)	2
82	Revin A.A. (AntonRvn)	2
83	kadyan N. (Nidhi1234)	2
84	Blagodatnov (Sycho)	2
85	Vetkalova (Ved22)	2
86	Petrova (er4ni4)	2
87	Moiseenko S.I. (mois_)	1
88	V (Tenyva)	1
89	Koptel'tsev V. (selber)	1
90	Ivanov Yu. (Ury)	1
91	Mamadrazakov (Azamat_M)	1
92	Singla S.K. (loofy)	1
93	Vodolazova A.V. (Vodolla)	1
94	Smirnov S.V. (DeLuX)	1
95	Bryukhanov A.N. (Antonus)	1
96	Larina (vivallery)	1
97	Nazyrov R.R. (Davel)	1
98	Georgievskij O. (vezdessushiy)	1					ban	ban
99	Labetsky (DarkRipos)	1
100	Kalinin A.A. (Ishimiro)	1
101	Savenko (olalasavenko)	1
102	Bykov A. (Metan_ptz)	1
103	Pankov G.V. (rmdsx)	1
104	Efremova (anasefrem24)	1
105	Novikova A. (snusmumrik_)	1
106	Tkachenko D. (_GUERNIKA_)	1
107	Kornev A. (Nysti)	1
108	Koshman A.S. (Fennix)	1
109	Khrol N.S. (Natalia_Khrol)	1
110	Novichkov S.S. (sql_rex)	1
111	Sarkis'yan G. (gennadi_s)	1
112	Titov (mahaon_1999)	1
113	Aidar B. (aydaroov)	1
114	K (Kate_m7)	1
115	Dmitriev N.V. (Son1do)	1
116	Skokov B.S. (leks$$)	1
117	Kameneva (kristachak)	1
118	R. (Wra1th)	1
119	Pavel P.P. (familka)	1
120	Erushevich V.S. (VladislavEr)	1
121	Korolev R.V. (zouker)	1
122	Dimitrov V.M. (vencid)	1
123	Khrustaleva (kultuh)	1
124	Alek (litvin001)	1
125	Skorzhevskaya M.A. (Maylin_03)	1
126	Lysykh V.K. (Usilitel')	1
127	Subbotina N. (Nelly_sub)	1
128	Tutushkin (Pigniculus)	1
129	Brotskij I.P. (ANANASIK0701)	1
130	Krikunov V.V. (Krikunov_Vitalik)	1
131	Fatikhov D.I. (Fatikhov_Dinar)	1
132	Safronov P.A. (Paulus73)	1
133	Kolobin N.S. (gerod0t)	1
134	qq Q.Q. (stormxgod)	1
135	Sidorenko (Junior_Explorer)	1
136	Kolobovnikov B.R. (bodyan42)	1
137	Sova (Licesur1)	1
138	Bogatyrev N.V. (BNV2873)	1					ban	ban
139	Evgen'ev (gek_c)	1
140	Ilina N. (lkjahfjkseb)	1
141	Kupriyanova P.A. (@poluchku)	1
142	Belyakova A.S. (Belyak)	1
143	Kebekbaeva N.A. (Nargiza123456)	1
144	Malikov A.A. (Ara2002)	1
145	Burtonov A.V. (tak to)	1					ban	ban
146	Kim D. (DkimsonSQL)	1
147	Yurova (AherCh)	1
148	Savinova (Alenari66)	1
149	Shevchenko A.A. (Yter)	1
150	Fedorchukova D.V. (DariyaFedorchukova)	1
151	anonim (anonim5464try)	1
152	dve Z. (Exzotik)	1
153	Cherov V.A. (GroveS)	1
154	Potapov V.S. (potapov95)	1
155	Mel'gunov D.D. (waawweelon)	1
156	Parfenov I. (HotDoge)	1
157	Shim A. (DDMaFuck)	1
158	Kotov A. (rainbowwolf)	1
159	Regina R.R. (Liejina)	1
160	Morozov K. (kkkmorozov)	1
161	Vershinin D.E. (keeendaaa)	1
162	Bykov (n0yabrin)	1
163	Garshin M.S. (Max135)	1
164	Unregistered	17

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References