Today's statistics at "SQL Exercises"

July 20, 17:35 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	Sukhin (Artem797)	2			9	9
2	Odnokurtsev (AlFochino)	4			1	4
3	Zlotskaya E.O. (Barmalizik)	1			3	3	6	8
4	valerkoles (Valeriy____)	1			3	3
5	Piotka V. (Pilotich)	2					ban	ban
6	Umre P.S. (Pranay Umre)	2					15	25
7	Rukavitsyn A. (DillianSky)	2					14	23
8	Umre P.S. (Pranay. Umre)	3					15	18
9	Buz'ko I.V. (wwhoneybadger)	1					12	16
10	Koz'mina M.A. (DogHunter666)	1					12	15
11	Solomentsev (DenisC)	1					11	15
12	Aksenov D.A. (ak5eda)	1					9	15
13	piopio5 (piopio5)	1					9	14
14	Titov (Kotoday)	2					10	13
15	Muravenko (Deformater)	2					8	11
16	Kuznetsov M.S. (m0xy4)	2					7	11
17	Folomeev (Cap1568)	2					7	11
18	Romanchuk (Artemka__1337)	2					6	11
19	Akkazhov M.I. (Meir_82)	1					6	11
20	Khusnutdinov D.D. (Abdulxamid)	1					6	10
21	Somkuwar V.M. (Vidhita Somkuwar)	2					7	9
22	solich (vlad solich)	2					7	9
23	Sherekar A.A. (Anushka Sherekar)	1					6	9
24	Yerlanuly A. (qoealmas)	2					5	9
25	Korotkevich I.A. (somnambula)	1					8	8
26	Nagdeve S.R. (Sharvry Nagdeve)	2					7	8
27	Go G.G. (greegory)	1					7	8
28	Pillai A.A. (ashwiniajikumar)	2					5	8
29	Usikova (Ya.)	2					4	8
30	Shinganapure Y.A. (Yashashri)	1					7	7
31	Selezneva L.N. (SeleznevaLN)	3					6	7
32	Shishova P.S. (shajealess)	1					6	7
33	Karelina M.A. (Mariya Karelina)	1					6	7
34	Melezhik V. (lovelyanoxia)	1					6	7
35	Egorov S. (segorov)	1					6	7
36	sharova (ul_sharova)	1					4	7
37	Semenov (asv_1)	1					4	7
38	Pande S.S. (Sarthak_Pande)	1					4	7
39	Grigoryan A.A. (KORBY)	1					4	7
40	Merkulov (Lesan)	1					4	7
41	Petrushin V.S. (Moraiv)	1					6	6
42	Mankar A.M. (AnushkaM)	1					4	6
43	Filch A. (ArgusFilch)	1					4	6
44	Orlov A.N. (MeatB4ll)	1					3	6
45	Rozhdestvin A.E. (Anderstand)	1					3	6
46	Sukhareva S. (mikeneko)	2					4	5
47	Eperina A.M. (Olllo)	2					3	5
48	Gadkari P.P. (Purva G)	2					3	5
49	Maksimov M.M. (garkoh)	1					3	5
50	Kochnev (Tiponick)	1					3	5
51	Yurova (AherCh)	1					3	5
52	Altashin S.V. (burrito)	1					2	5
53	Chagovets (CHGVTS)	1					4	4
54	Lana L. (dochpoei)	1					4	4
55	Berseneva T.M. (Bersa_3785)	2					3	4
56	Cernius A. (a.cer)	1					3	4
57	Ivanov I. (test9999999999999998)	1					3	4
58	starcev T. (timstars)	2					2	4
59	Bulavko D.V. (az.esm)	1					2	4
60	Ashuba B.D. (badis)	1					2	4
61	Savchenko V.P. (Vladislav11111)	1					2	4
62	Vezhnovets D. (Vere)	1					2	4
63	Kalashnikov D.Yu. (frutt1)	1					2	4
64	yehor Y. (beginner0)	1					3	3
65	Chaudhari (Rutik18)	1					3	3
66	Ghule R.M. (Rachit_Ghule)	1					3	3
67	shrivastava A. (Aditya17)	1					2	3
68	Mikaya (Gio9248)	1					2	2
69	Ye Y.A. (Yertt)	1					2	2
70	Voronov R. (edemr26)	1					2	2
71	Bunaev V.V. (ineedluv)	1					2	2
72	Qwerty (waxyyy)	1					2	2
73	Iatkin (MIhey_70)	2					1	2
74	Zorkin A.M. (SpamAttack)	2					1	2
75	Bopche N.R. (Neha Bopche)	2					1	2
76	Tsay A. (antoninho)	2					1	2
77	Nastya N. (NastyaZaika)	1					1	2
78	Oktamov N.A. (Nurdaulet99)	1					1	2
79	Z D. (staldem)	1					1	2
80	Volkova E. (keke97)	1					1	2
81	alekseitroitskii (alekseitroitskii)	1					1	2
82	Bochkova (AnyaBo)	1					1	2
83	Antonova (Elena_No)	1					1	2
84	Urakina K. (Ksu774)	1					1	2
85	Mikhajlov D. (firey0)	1					ban	ban
86	Anait A.A. (pau44o)	2					1	1
87	Shil'chenkov M.A. (msmshilchenkov)	2					1	1
88	bajturova V.V. (Nika1234)	2					1	1
89	Zharylkapov A. (zharylqapov)	2					1	1
90	Aleksandrov N.P. (Franklin_Lakosa)	2					1	1
91	Nasibullina G. (anomaly1)	1					1	1
92	Serebryakov I.B. (Vano23)	1					1	1
93	test (qwerty37892)	1					1	1
94	Sergazy A. (sergazy11)	1					1	1
95	Elena E. (Kudesnitsa)	1					1	1
96	jaunjal K.Y. (kishorj)	1					ban	ban
97	Ughade G.A. ((Gautam)@123)	1					1	1
98	Egorova A.O. (Sasha1994)	1					1	1
99	Yusupova A. (alf18)	1					1	1
100	Funtova M.I. (fialka3)	1					1	1
101	T M.V. (Menoik)	3
102	Pipch (Pipch)	3
103	Anisimov (ArturenciA)	3					ban	ban
104	James S. (Siya_james)	3
105	Valeriy (ValeriyVK)	3					ban	ban
106	Ivanov (MOHAPXI)	3
107	Shibaev (saah)	2
108	Krasovskij E.A. (pegoopik)	2
109	Yatskevich E. (katherine_yatskevich)	2
110	Alex (Eskhato)	2
111	Leonov D.V. (xannnnn)	2
112	Bogatyrev N.V. (BNV2873)	2					ban	ban
113	Ford N.G. (Ninashka Ford)	2
114	Kumbhare A.D. (Ayush Kumbhare)	2
115	Kirpankar K. (Kunal_Kirpankar)	2
116	Oralbek (dianaorabek)	2
117	Timofeev Yu.E. (bncancri)	2
118	Satpute R.C. (RAGINI23)	2
119	Tskhondia M. (MeryemTskhondia)	2
120	Bogdanov D.A. (awie)	2
121	Kuznetsova (EvgeshaLubimka)	2
122	Koudriavtseva (Larissa)	1					ban	ban
123	Pupkin (Kikimora)	1
124	T. (Tovarisch)	1					ban	ban
125	Gorbunov M.S. (gms)	1
126	Rakitov S. (Staso)	1
127	Hdh J.X. (Vplus)	1
128	Kovalevskij (Lazy Lou)	1
129	Gorbatova (Triton512)	1
130	Makar M. (Sphinks)	1
131	Evstaf'ev D.A. (Redis22)	1
132	Zverev K.A. (Kartez)	1
133	Ivanov I.I. (vlad91)	1
134	Georgievskij O. (vezdessushiy)	1					ban	ban
135	Bazylev (Bearbaz711)	1
136	Sergey (Floony.by)	1
137	Kostenko E. (Katya.2k)	1
138	Samsonov S. (Phreeoni)	1
139	Mendes L.*. (Lmendes98)	1
140	Mal'tseva E.M. (MalcevaElena)	1
141	Prosvirnin D.S. (Dmitry_1337)	1
142	Stenyakin O. (stenyakin)	1
143	Sh M. (mcntai)	1
144	Moskvichev K.V. (b1_b1_b1_b1_b1)	1
145	Kalinin E. (kalinin_e)	1
146	Limon (SRG JL)	1
147	G A. (anna_tutta)	1
148	Grodz' A.A. (nastya_g)	1
149	Eshboyev X.X. (Yalong)	1
150	Khitajlova V. (Letti.k)	1
151	O (janeoosql)	1
152	Zaripov (Kahatao)	1
153	Ivanov (hjwq35tghj)	1
154	Beketov (becat)	1
155	Strukov (StrukovSA)	1
156	Dogadov S.V. (Serzho)	1
157	Petrov I.N. (stateonuris)	1
158	Balabanova (BazAka4)	1
159	Sarkis'yan G. (gennadi_s)	1
160	Ul'yanov A. (Red_Alex)	1
161	Snajder A. (Vergili)	1					ban	ban
162	Kameneva (kristachak)	1
163	Ololo (Zeek321123)	1
164	Rachkov G.O. (Geraol)	1
165	Kalinkin Ya.O. (nillak)	1
166	Belen'kij I. (boogies)	1					ban	ban
167	Bu O. (SanaBu)	1
168	Tyul'berova A. (ann_tyulberova)	1
169	bodina V.A. (dqrliss)	1
170	R. (Wra1th)	1
171	Muratov D.A. (Enovostuck)	1
172	Shaikh (Angy33)	1
173	Rudakova (maryzi13)	1
174	Domashov A.P. (Hausov)	1
175	Maksimovich (serg_sputnik)	1
176	Lysykh V.K. (Usilitel')	1
177	Akameeva S.V. (SVA1)	1
178	Makarova M.K. (maria_makarova)	1
179	Boboeva (Kiba)	1
180	Mishra A. (AMojojojo)	1
181	Alekseev M.A. (ama2301)	1
182	Tokhtakhunov W. (NuevaV1D4)	1
183	Fisman E.E. (lizafisman)	1
184	Shevtsov K. (KonstantinXL)	1
185	Trushnikov M.N. (chajan)	1
186	Koval'chuk (gigtop)	1
187	Evgen'ev (gek_c)	1
188	Rezvan (SilentLand33)	1
189	Bovikov B.S. (LVII)	1
190	Filippov S.M. (sigkigovn0)	1
191	Razinkova V.A. (ViktoriyAnatolevna)	1
192	Gudelnikov S.A. (SG1328)	1
193	Zakharov (svyyy)	1
194	Serbov (Fugas_33)	1					ban	ban
195	Murat M. (murat_mukhammed)	1
196	Ponomarev M.P. (MatveyF)	1
197	maslenikov O.B. (ffreyman)	1
198	Agametova B.K. (Agametova Bella)	1
199	Polikarpov K. (kir0206)	1
200	Abdulov F.N. (FuadSQL)	1
201	Vedeneev V.S. (Feral4ik)	1
202	Malikov A.A. (Ara2002)	1
203	Yadav Y.A. (Yash_Yadav)	1
204	falke S.Y. (shruti falke)	1
205	kharche S.N. (Sanket_Kharche)	1
206	Thawale S.S. (Saloni_Thawale)	1
207	Haciyev I.A. (Ismayil)	1					ban	ban
208	Wadibhasme K.A. (khushi wadibhasme)	1
209	Burtonov A.V. (tak to)	1
210	badge M.B. (mrunmayi)	1
211	Mikhajlova V.P. (veneragret)	1
212	Andhare A.R. (Atharva Andhare)	1
213	Gept A.V. (arthurgpt)	1					ban	ban
214	shende S.P. (siddhi shende)	1
215	masih S.R. (sheron masih)	1
216	Lobkovskij R.S. (Roald)	1
217	S T.E. (\|.I)	1
218	Burilova M. (Magari)	1
219	rr (N S T)	1
220	K (GK_)	1
221	Savinova (Alenari66)	1
222	asdsfsdfsd (aergsdgsd)	1					ban	ban
223	asdasdfsdf (asfaasdfsdfsdf)	1					ban	ban
224	Nevskij D. (SkipOne)	1
225	Sharapov (shrpv.den)	1
226	Genne K. (KostG)	1
227	Kuznetsov A.S. (Artkuz1989)	1
228	Artyom (Feersys)	1
229	kavta S.K. (kavtkavt)	1
230	Ivanov I. (monsieur123)	1
231	Simakov D. (simadima)	1
232	Voronets A.Y. (AvdeyVoronets)	1
233	Spirit S.N. (Squash123)	1
234	kurin (novlless)	1
235	Gagulina P.A. (polinush)	1
236	Kapustin V.A. (addictedtoevil)	1
237	AAron G.D. (qapoqu)	1
238	Kharchenko K. (Ketzet)	1
239	Bokovaya (matterhorn)	1
240	Isaev (Isay)	1
241	Unregistered	27

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References