Today's statistics at "SQL Exercises"

July 14, 15:24 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	Patil D. (divyap)	2			9	9	13	17
2	Potemkin (Yazon_79)	1	5	16		6
3	Nyaharkar S. (sanikanyaharkar)	1	1	1	4	5
4	Salodkar R. (Ruksie)	2			4	5	8	11
5	Safronov P.A. (Paulus73)	1	1	137		4
6	Mhasalkar S.S. (sneha@007)	2			4	4	2	4
7	Shewale S. (samadhan33)	2			1	1	5	5
8	JADHAV R.V. (Rajwardhan)	1					15	26
9	kakade B.S. (bhaktisk)	2					15	24
10	Sahijwani D. (Deepanshus)	3					10	17
11	Burtonov A.V. (tak to)	2					10	17
12	Volozhaninov M. (na_dobrom1)	2					13	16
13	Patil T.N. (Tanay070607)	1					ban	ban
14	Serdyukov I.S. (Seeerd)	1					10	16
15	Singh A.J. (AdityaS)	2					9	15
16	Thakur B.K. (Bablu Kumar)	1					9	15
17	Gept A.V. (arthurgpt)	1					ban	ban
18	ivanova (Laysan20261)	6					13	14
19	Madbhavi S. (Sudarshan10)	3					8	13
20	Tanpure V. (VRT)	1					8	13
21	Plotnikov O.I. (oleshka01)	1					8	13
22	Ivanov (T1ska)	1					9	11
23	Shil'chenkov M.A. (msmshilchenkov)	1					8	11
24	Mulloev A.E. (goroth)	1					7	11
25	Azimov (magamaga)	1					6	11
26	Todua D.M. (DavisBomonec)	1					9	10
27	Orlenko D.I. (Di.orlenko)	2					6	10
28	Kashin A. (AlexWinner)	1					6	10
29	Haciyev I.A. (Ismayil)	2					5	10
30	Krasavtseva O. (olivkap)	1					8	9
31	GG (Bazist)	2					5	9
32	Kostrygina (Hiki_Imaru)	2					5	9
33	Ashuba B.D. (badis)	1					5	9
34	Dolgov O.S. (Oleg Dolgov)	1					5	9
35	bogachenko (dabldzhej)	1					4	8
36	Mischenko S. (lljihn)	1					4	8
37	Matushkina (AlenaM15)	1					4	8
38	Chaudhari (Rutik18)	1					4	8
39	Pya A. (mamka2p)	1					6	7
40	Rudakova (maryzi13)	1					4	7
41	Frost N.V. (QWwWQ1)	1					4	7
42	Abdulov F.N. (FuadSQL)	2					5	6
43	El'yashova E. (eelyashova)	1					5	6
44	gtnhjd B... (Ghbd)	2					3	6
45	Spitsyna V.A. (kaosomi)	3					5	5
46	Rechnaya D. (i_dalja)	3					5	5
47	Stasilevich A. (AlinaStasi)	2					5	5
48	Gauert (Evgeng)	1					5	5
49	Sten'kova V.S. (BarabashkaV)	1					5	5
50	Goncharova K.A. (22437867865767221222)	1					5	5
51	Mal'tseva V.A. (ctoriavick1)	1					5	5
52	Korbakov N.V. (namedead)	1					5	5
53	Akkazhov M.I. (Meir_82)	1					4	5
54	BHOWARE P.S. (pranaybhoware)	2					3	5
55	Marushevskij M.S. (Selezen.x55)	1					ban	ban
56	Mikhajlova V.P. (veneragret)	1					3	5
57	Mahajan P.A. (pm1111)	2					4	4
58	Rozenberg A.N. (IIIyRa)	2					4	4
59	Evgen'ev (gek_c)	1					4	4
60	- M. (foveck)	1					4	4
61	shrivastava A. (Aditya17)	2					2	4
62	Fakiev D.Z. (ysnl)	1					2	4
63	shewale S.G. (samadhan shewale)	2					ban	ban
64	Ivanov K.S. (Drovosek706)	2					3	3
65	Olegov O.O. (qw3erqwertqwerqwerq)	1					3	3
66	Adel'shin D.A. (Dim0n21)	1					2	3
67	Ivanov M.A. (Yokki)	1					2	3
68	Matyugin E. (lordpr)	1					2	3
69	Akameeva S.V. (SVA1)	1					2	2
70	Luchnikov M. (pupkaLupka)	1					2	2
71	Nedzvetskij (mkrslv)	1					2	2
72	Kataev M. (Mishwey)	1					2	2
73	Leonov (aslnv1)	2					1	2
74	Volkova V.I. (vivi__meow)	2					1	2
75	Evlanova (Kate_E)	1					1	2
76	Evstaf'ev D.A. (Redis22)	1					1	2
77	Kornienko A.V. (_taz_)	1					1	2
78	Kravchuk O.T. (Popori)	1					ban	ban
79	Svetlana (Enita)	1					1	2
80	Avdyunina V.D. (Ruibing)	1					1	2
81	Zubkov D. (Dm54)	1					1	2
82	Nazarov (Neislaw)	1					1	2
83	Alekseevich A. (Aleksei.P)	1					1	2
84	Iva E.A. (PlatinumKub10)	1					1	2
85	Langlits (milkeyway)	1					1	2
86	Polikarpov K. (kir0206)	1					1	2
87	Krylov P.E. (Pavel333333)	1					1	2
88	Loginov A.S. (arien4)	1					1	2
89	Azhikenov A. (Dos999988)	1					1	2
90	Noskova A. (Nosochek)	1					1	2
91	Dhawade A.R. (JoinKing)	1					1	2
92	Deshpande H.S. (Hrishikesh_07)	1					1	2
93	Borichev A.D. (SaN4ELlo33)	1					1	2
94	Vysotskij E.V. (Esscape)	2					1	1
95	Myrzabek N.K. (nurrrzat)	2					1	1
96	piopio5 (piopio5)	2					1	1
97	Skuratov S.A. (skuratov-sa)	1					1	1
98	Berezovskaya D.V. (dashaeverafter)	1					1	1
99	Zaripova E.R. (elinnazr)	1					1	1
100	Laptev M.S. (Mahmed_tea)	1					ban	ban
101	Z (Dolto)	1					1	1
102	Serdyuchenko E.Yu. (eserdyuchenko)	1					ban	ban
103	Murat M. (murat_mukhammed)	1					1	1
104	Pavlenko S.D. (PavlenkoS)	1					1	1
105	gusarov I. (lllia)	1					1	1
106	Maximovna P.T. (qwhuo)	1					1	1
107	Z A. (mrdevps)	1					1	1
108	Koptel'tsev V. (selber)	3
109	Revenko M.A. (CptDisturbed)	3					ban	ban
110	Vinogradova S.M. (Tigra1)	2
111	Gitinomagomedov (gmansur88)	2
112	Ivanov (WillSom)	2
113	Konovalov (Areksei)	2
114	Khakhulina Yu.I. (Donnayuliya)	2
115	Dmitriev N.V. (Son1do)	2
116	Sokolov (zelenogrodov)	2
117	Salov S. (Koshachek)	2
118	Odnokurtsev (AlFochino)	2
119	Okolnikova (SofyaO)	2
120	Taurbek B.D. (Bagy)	2
121	Filch A. (ArgusFilch)	2
122	Fyodorov I.P. (Kega)	2
123	Komarova (Tally_san)	2
124	Grigoreva (koska_chulanovaya)	2
125	Kuznetsov M.S. (m0xy4)	2
126	Williams B. (BW)	1
127	Kurochkin P.A. (qwrqwr)	1
128	Klyueva (Elena_dragon)	1
129	Sivaci C. (Cihan)	1
130	Selezniov M. (Mihail Selezniov)	1
131	Dubov Yu.V. (YuriiDubov)	1
132	Babayants (Karin)	1					ban	ban
133	Voronov D. (Elnov.70)	1
134	Poryvaev (Alykard)	1
135	N. A. (Argon7)	1
136	Ivanov I.I. (vlad91)	1
137	Buch O. (OlehBulb)	1
138	Oktamov N.A. (Nurdaulet99)	1
139	Sidorov (fonari)	1
140	lVlarchenko (Mmmore)	1
141	Kaluzhskij T.O. (TIMON4EG40)	1
142	korol'ko N.A. (akapobesy)	1
143	Chmil' E.V. (CoreyTaylorSwift)	1					ban	ban
144	Zhukov A.A. (AntonZhukov95)	1
145	Smolina (Alyona____S)	1
146	Bozeko D. (Di-bo)	1
147	Tkachenko D. (_GUERNIKA_)	1
148	Pretor P.P. (Pretorina)	1
149	Shikov V. (Viktor_TG)	1
150	Zubarev A.V. (A.Zub)	1
151	Matyushin (vasivas)	1
152	Orlenko (Lima82)	1
153	Shabalkina U.V. (Onevilus)	1
154	Chajkin S.I. (Serzh C)	1
155	Mikheeva (BahrMikhev)	1
156	Sarkis'yan G. (gennadi_s)	1
157	Isaev K.T. (Kairat545658)	1
158	ss A.S. (SashaSS)	1
159	Skokov B.S. (leks$$)	1
160	Rodin (uoloki)	1
161	Churilov N. (Nick_Cherry)	1
162	zhalevich (d.zhalevich)	1
163	Malinchik K.D. (Skaipia)	1
164	Gorobinskij (demonguest)	1
165	P I.*. (IrinaPetr)	1
166	Yana Y.Y. (KeiYana)	1					ban	ban
167	Konon (Kenen)	1
168	R. (Wra1th)	1
169	Kalymbetov E.K. (niceandcrispy)	1
170	Remizova (Remna)	1
171	Aidarova A. (allaroomie)	1
172	Korolev R.V. (zouker)	1
173	Frantsuzov M.Y. (MaxYurievichFrantsuzov)	1
174	Chernyshov (Chernik4)	1
175	Lysykh V.K. (Usilitel')	1
176	Boboeva (Kiba)	1
177	Kas'yanov (jjfxfxzxqqq)	1
178	Mokhov K.A. (Kosta1123)	1
179	Makushin A.A. (zzyako)	1
180	Mederbekov (AKMT)	1
181	Pan'shina A.G. (AlexashaKim)	1
182	Rukavitsyn A. (DillianSky)	1
183	Chulavyj (browniey)	1
184	Tolmachev R.S. (Ruslan Sergeevich)	1
185	Shinkevich I.V. (aivan96)	1
186	S (n1pron)	1
187	Vydrin (kandratt)	1
188	test (qwerty37892)	1
189	kh A. (aliastrong)	1
190	Kuvshinov (Kuvshinka)	1
191	Pushkarev S. (PSV_n)	1
192	Volkov D.S. (Dmitry_VS)	1
193	Travkin A.A. (minon)	1
194	Vorotnikov Yu. (Juriiy)	1
195	Terekhova D. (Dashielle)	1
196	Lupashko A. (Alexei_2106)	1
197	Podlesnyh I. (ivan_podlesnyh)	1
198	Podgornaya D.R. (Himikoo)	1
199	Daukenova K. (Kseniya Andreena)	1
200	Jhonson (Akela777)	1
201	Khmelevskaya S. (Klepa151719)	1
202	Savchenko V.P. (Vladislav11111)	1
203	Khar'kov-Tumaschik A. (metalangel89)	1
204	Oralbek (dianaorabek)	1
205	Murat S. (SultanMr)	1
206	An (Rusk111)	1
207	Calais (Laperuza)	1
208	Bulgakov M.A. (MatthewFl)	1
209	Kabdrashitov M.O. (merekekabdrashitov)	1
210	lit (pxeexe)	1
211	Sharma S.R. (sakshi2004)	1
212	Alekseev V.S. (flipTI)	1
213	Khomyak M.N. (khomyak17)	1
214	Kosulnikova (Aleksandra_Akkerman)	1
215	Demidovich P.M. (c0ral0vii)	1
216	Wil F.-. (Wilfrech)	1
217	Fokina (ayphine)	1
218	Romanchuk I.A. (ial.romanchuk)	1
219	Blare A. (Annet Blare)	1
220	Davlieva D.I. (Rovoam Kelkhun)	1
221	487 (487)	1
222	Baburin (Pupil 666)	1
223	Aivazian A. (Artur Aivazian)	1
224	Vorontsova (TetGov)	1
225	Unregistered	23

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References