Today's statistics at "SQL Exercises"

September 14, 14:11 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	kolesnikova (KauBeast-)	2	2	3		3	11	15
2	Shibaev (saah)	3	1	78		2
3	Skokov B.S. (leks$$)	1	1	49		2
4	P I.*. (IrinaPetr)	1	1	-14		1
5	Zhorov (zefir123)	1					15	27
6	Pogosyants (Ivan338)	1					14	24
7	Nikitin T.E. (Now2Where)	1					ban	ban
8	Grigoryan R. (rrirra)	2					15	18
9	Volyntseva K.O. (KarinaVolyntseva)	1					15	18
10	Kuznetsova (moriq)	1					15	18
11	Akperov Yu.V. (usif)	1					15	18
12	Munkueva B.R. (Baira)	1					10	17
13	Zajnudinov I.Z. (LiLQ_Bite)	2					12	15
14	Kreshenova A.D. (kreshenova.a)	2					10	13
15	Markov M.M. (MaksimVeb)	2					10	12
16	Dolgova D.A. (dashulya_06)	2					9	11
17	Sirozhov A.M. (Sdoied)	2					8	11
18	Barashkin A.A. (conquru)	1					6	11
19	Molchin A.V. (a_molchin)	1					8	10
20	- -.-. (bftrr)	1					6	10
21	Bayguchukova A.M. (ABayguchukova)	3					5	10
22	Merkulova A.V. (alyohalyo)	1					8	9
23	Buraya K. (kseni_bur)	1					7	9
24	Novolodskaya S.S. (Svetlana_Novo)	1					6	9
25	Krasnov A.A. (Nutr1k)	1					5	9
26	Medvedev A.F. (andrei92121)	1					5	8
27	Zanegina S.N. (asdfggk)	2					ban	ban
28	Timirkin R.R. (Ravshan)	1					7	7
29	Djuraev D.E. (Djuraev)	2					6	7
30	Onegov A.S. (Sweqplatina)	1					6	7
31	Chagdurov Z.A. (Zorigto)	2					4	7
32	Kokoleva K.S. (ksusa)	1					4	7
33	Krupko E.L. (Krupko)	4					5	6
34	Khassanov I.K. (plh1)	2					4	6
35	Tulegen M.N. (Mansurrr)	1					4	6
36	Salmorbekov A.I. (Almabek03)	2					3	6
37	Karpova (kasetaka)	1					ban	ban
38	Bakhyt (Super_Noova)	2					5	5
39	linhcoder L.H. (linhcoder)	1					5	5
40	Timoshenko V. (TaxedoMask)	1					5	5
41	-- -.-. (sssnow1)	1					4	5
42	Zhivotnoe B. (Limonna)	3					3	5
43	guru (rgcust)	1					3	5
44	Ponomarenko E.A. (koplayman)	1					4	4
45	Zabelin A. (AZ35)	1					4	4
46	Stepanov (jagiello22)	1					4	4
47	Bogdan S.Yu. (_Serge0_)	2					3	4
48	Volik S.V. (volks&s)	1					3	4
49	Razumov V.D. (jackaless)	4					2	4
50	Palilova V. (_i_n_s_s_)	2					2	4
51	Golovizin D.A. (Goldan)	2					2	4
52	Snezhkin E. (Evgenij Snezhkin)	1					2	4
53	Shim A. (DDMaFuck)	1					2	4
54	Churilov O.E. (HocokTopok)	1					2	4
55	Zyuban (Hetro)	5					3	3
56	Khazhikarov K.M. (Hioms)	1					3	3
57	Vyuzhanin (Plashka)	2					2	3
58	Abramenkova (muroni)	1					2	3
59	Nasyrova (Alewa86)	1					2	3
60	Korotkevich I.A. (somnambula)	1					2	3
61	Dut O.A. (olga_dm_d)	1					2	3
62	Sheremet'ev I.M. (Efcko31)	1					2	2
63	Stytsyuk N. (natalia19930420)	1					2	2
64	Bezmolitvennaya Yu.V. (yillixx)	1					2	2
65	Nazarenko N.D. (roz1es)	1					2	2
66	Mishko A.V. (Django21)	1					2	2
67	squirrel (squir_el)	2					1	2
68	Petrov (Steamboat)	1					1	2
69	Egorov (alcatras88_ru)	1					1	2
70	Titov (mahaon_1999)	1					1	2
71	A K.A. (Mr_Wolf)	1					1	2
72	New R.G. (newLogin)	1					1	2
73	Tulegbenpenov (olegue839)	1					1	2
74	Berez (scanner1978)	3					1	1
75	Shapiro D. (xx_Da_Sha_xx)	2					1	1
76	Kashin I.V. (ikashin)	1					1	1
77	Sychyov Yu.S. (Mrak.krd)	1					1	1
78	Dmitrij K. (Elindir)	1					1	1
79	Koptel'tsev V. (selber)	5
80	Sain T. (Temujin079)	5
81	Krasovskij E.A. (pegoopik)	3
82	qwerty (nsme)	3
83	Barchenkov V.D. (UJYT)	3
84	Mammadov U.M. (__Ulvi__)	2
85	Isaev V. (valeriy.pervui)	2
86	Yefanova M.Y. (mari_5)	2
87	Sarkis'yan G. (gennadi_s)	2
88	Bogdanic A. (Anteee)	2					ban	ban
89	Turchuk A.V. (Anastasiya_Turchuk)	2
90	zhienbai S. (Sayat_07)	2
91	Golovanov Ya. (Yakov Golovanov)	2
92	Kokushkin S.V. (KokushkinBist)	2
93	GUShChYaN R.A. (RUS_RUSIK)	2
94	Giloyan V.T. (Varazdat)	2
95	Kurochkin P.A. (qwrqwr)	1
96	Sigankov V.I. (vasilyvanc)	1
97	Klassov A.B. (klassov)	1
98	Abdulmanapov A. (Dvarik)	1
99	Samarin (Gosha19169)	1
100	Yushina (anyush)	1
101	Ivanov I.I. (zlo777)	1
102	Tolstoi (Toy Soldier)	1
103	Filippova (bogomoleshka)	1
104	Yakovlev V.V. (Yakvv25)	1
105	Hurullina A. (Stels-ya)	1
106	Sorokin A.N. (nolan8)	1
107	Burkova E.I. (Burkkova)	1
108	Larionov V.A. (clowdy_keu)	1
109	Trifonova E.A. (ttrifonova)	1
110	Karabekov E.G. (eleke01)	1
111	Smirnov K.S. (Cheril)	1
112	Rumyantseva L. (ahren_enigme)	1
113	Terekhov I.E. (foxboy)	1
114	Drozhzha D. (D-D-Drozhzha)	1
115	Tsymbalova M.S. (maria_tsymbalova)	1
116	Brajnin S.O. (brusha)	1
117	Bolgova (IuliiaB)	1
118	Rakuta A.N. (bluecrop)	1
119	Stupin D. (Danila Stupin)	1
120	Kitaeva Yu.V. (Yk_ka)	1
121	Ageev S.A. (Ogeon)	1
122	R. (Wra1th)	1
123	Pavel P.P. (familka)	1
124	Taweel M. (mahmoud13)	1
125	Manatov I.A. (igrus)	1
126	Surname (sean_archer)	1
127	Khazieva V.Kh. (vasilek82)	1
128	Agafonov N.E. (povelitelstrekoz)	1
129	Skibin V.V. (SQL_vvs)	1
130	Lysykh V.K. (Usilitel')	1
131	Akameeva S.V. (SVA1)	1
132	... (Igor...)	1
133	Virshich D.A. (diana_virshych)	1
134	Pavlovich T.I. (pavlovicTI)	1
135	Mironenko O. (Ol'ga Miro)	1
136	Kovalevskij P.V. (soulshon)	1
137	Alekseev M.A. (ama2301)	1
138	Tudupova U.B. (uianna)	1					ban	ban
139	Tsyrenzhapov R.B. (RuslanTsyren)	1
140	Tugdumov B.B. (Badara_01341)	1
141	Ivanov I.I. (pasta123!@#)	1
142	Dmitriev A. (Shuripec)	1
143	Timchuk I. (Ilya Timchuk)	1
144	Sharshenbekova N.E. (Snazira245)	1
145	Ganiyev A. (lernanto)	1
146	zaitsev (Mr.Danil_SQL)	1
147	Krasnov D.A. (krasti)	1
148	Denisova A.A. (@DenNasttya)	1
149	Sobachkin A.F. (Al_Wolf)	1
150	Taurbek B.D. (Bagy)	1
151	Mukhamed'yarov A.R. (alex_mu002)	1
152	Shishova P.S. (shajealess)	1
153	Frolov F.V. (Fungifon)	1
154	Levin Yu.A. (pdestroyer)	1
155	a A.A. (rdctfvygbuhjnk)	1
156	Pumonov (7766655671)	1
157	Basova (Marie_Mikey)	1
158	Solomnikova (AlexSolom)	1
159	Raimbekov E.B. (KlarkKent)	1
160	Draga A.A. (syllvis)	1
161	Shtumpf A. (shtumpf)	1					ban	ban
162	Minin A.A. (Artur_1111)	1
163	Artemev L. (Leonid S.)	1
164	Kurbatova N.G. (Natali_01)	1
165	Ivanov (denisssss1234444)	1
166	Artamonov A. (Artamoon)	1
167	Ryabicheva (Pory)	1
168	Otinov A.D. (WellSo)	1
169	Drazhin S.E. (worsyyyyyy)	1
170	Kunchenko E. (ElenaK1990)	1
171	Shiryaev A.A. (SmailikX_X)	1
172	Margaryan G.Kh. (margaryan_g)	1
173	Bobrov M.A. (Bobrov Mikhail Alekseevich)	1
174	Khandogina Z. (flazz)	1
175	Rudakova S.E. (Sonya Rudakova)	1
176	Morozov (sisylipheus)	1
177	Belyaeva A. (Anna0404)	1
178	Sidorova A.A. (perekis_vodoroda)	1
179	Dan V. (SunDan)	1
180	Radnaeva A.V. (Tremy67)	1
181	Ivanova O.M. (Arkadiya Almazova)	1
182	Bagaeva E.A. (Katatakana1323)	1
183	Ponomarev A. (R9000)	1
184	El'chaninov K. (dbrr)	1
185	Kol (EvgeniaKol)	1
186	wefrgth E.E. (scdncsc)	1
187	Kalinina L. (KalininaLarisa)	1
188	Suvorova (as3chechka)	1
189	Zheleznov E.G. (FRED!)	1
190	Kolevatova E.A. (897Katerinkaaa)	1
191	Koba Yu. (Yul'chik 05)	1
192	Ivanyuk T.V. (Timofey160505)	1
193	S S.S. (sk003)	1
194	Egamov B.A. (Bulat Egamov)	1
195	Unregistered	79

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References