Today's statistics at "SQL Exercises"

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

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References