Today's statistics at "SQL Exercises"

July 19, 18:49 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	Krass M.L. (Marcus Licinius Crassus)	3	1	4	1	3
2	Vinogradova S.M. (Tigra1)	1	1	125		3
3	O (janeoosql)	1	1	20		2
4	ss A.S. (SashaSS)	1			1	2
5	Dahare K.L. (Khushi Dahare)	2					15	26
6	Kumbhare A.D. (Ayush Kumbhare)	2					12	19
7	Dorin (MikeDorin)	3					15	18
8	Folomeev (Cap1568)	2					15	18
9	Yerlanuly A. (qoealmas)	1					15	18
10	Shutin (MalEvi44)	2					9	15
11	Yurova (AherCh)	1					8	13
12	Nyaharkar S. (sanikanyaharkar)	2					7	11
13	Ashuba B.D. (badis)	2					6	11
14	Serdyukov I.S. (Seeerd)	1					5	10
15	Valeriy (ValeriyVK)	1					7	9
16	hh (Marioara.H)	2					ban	ban
17	Nhane S.M. (Sujal)	1					6	8
18	Pande S.S. (Sarthak_Pande)	1					6	8
19	Dogadaeva T. (Tanka_kruta)	1					5	8
20	Rezyapov (drezyapov)	1					5	8
21	Zamaraeva K. (Ksenia_123)	1					5	8
22	Perevozkin (emaevsemae)	1					4	8
23	Strelkin E.A. (estrelkin0906)	2					6	7
24	Gudadhe T.A. (Tanmay2007)	2					5	7
25	Andrus G. (Greeenvich)	1					5	7
26	Qwerty (TeacherTop9)	2					4	7
27	Altashin S.V. (burrito)	1					2	7
28	Maksimovich (serg_sputnik)	2					4	6
29	Zorkin A.M. (SpamAttack)	1					4	6
30	Go G.G. (greegory)	1					4	6
31	Merkulov (Lesan)	1					4	6
32	Balpande V.K. (Vedantiiii)	1					3	6
33	Assembayev D. (Soulmat4)	1					4	5
34	Mikhajlova V.P. (veneragret)	1					4	5
35	Namestnikov N. (NikolayN)	1					3	5
36	Maksimov M.M. (garkoh)	1					3	5
37	Demin I. (Rey619)	1					3	5
38	babiy E.I. (eka_nail)	1					4	4
39	Elena E. (Kudesnitsa)	1					4	4
40	Teryokhin A. (ALEXEY243)	2					3	4
41	Knyazev V.M. (vladislaaav8)	2					3	4
42	Kalymbetov E.K. (niceandcrispy)	1					3	4
43	Rodller (Lexy Rodller)	1					3	4
44	Kuznensov A. (kuznec4life)	1					2	4
45	Koz'mina M.A. (DogHunter666)	1					3	3
46	Shuvaev D.O. (DOShuvaev)	2					ban	ban
47	Petrov M.K. (Gerr Kartoshechka)	1					2	3
48	Troshnev A.T. (Capitan Levi)	1					2	3
49	Lipin E. (Junior2222)	1					2	3
50	Zaripov (Kahatao)	2					1	3
51	Grishenkov S.M. (thewitcherares38)	2					2	2
52	Ivanov I. (blablavlad1)	2					2	2
53	Bopche N.R. (Neha Bopche)	1					2	2
54	Lapshin Ya.Yu. (MULTILIB567889)	1					2	2
55	Kamydo V.O. (Nika14)	1					2	2
56	Yoel A.A. (Arpan_yoel)	4					ban	ban
57	Bochkova (AnyaBo)	2					1	2
58	Z D. (staldem)	1					1	2
59	Adigamova M. (milkazz)	1					1	2
60	Platonov A. (Golden-Times)	1					1	2
61	Ivanova (nahi1)	1					1	2
62	Ponomarev M.P. (MatveyF)	1					1	2
63	Langlits (milkeyway)	1					ban	ban
64	Klibanova K. (Kseniya11111)	1					1	2
65	Tsay A. (antoninho)	1					1	2
66	Parshin M.N. (mparshin077)	1					1	2
67	Kornienko M.A. (ErrM)	2					1	1
68	bukachu D. (bukachu84)	1					1	1
69	Chmil' E.V. (CoreyTaylorSwift)	1					ban	ban
70	Yana Y.Y. (KeiYana)	1					ban	ban
71	Koval'chuk (gigtop)	1					1	1
72	yehor Y. (beginner0)	1					1	1
73	James S. (Siya_james)	1					1	1
74	Markova Ya.A. (yana111&jdjhgfs)	1					1	1
75	Andrej (acherd)	1					1	1
76	Makeeva K. (itKitty)	1					1	1
77	Gusejnov A.E. (AliG221)	1					1	1
78	Krasovskij E.A. (pegoopik)	5
79	Sarkis'yan G. (gennadi_s)	5
80	Odnokurtsev (AlFochino)	3
81	Kajgorodov O. (oleg30001)	3
82	Petrov (Steamboat)	2
83	Ivanov (Yurikus)	2					ban	ban
84	Bondarenko D.B. (Hecvi)	2
85	Vlasenko A. (__Nastazy__)	2
86	Korolkovs (fkorolkov2)	2
87	Baulina E.I. (lebanau)	2
88	tsyrenov P. (purboch)	2
89	Enok (Matan3n0k)	2
90	Makarov I.A. (_Bkmz_)	1
91	Shibaev (saah)	1
92	Gagonov A. (Gagonow)	1
93	Ushakov S. (MoyPsevdonim)	1
94	Stul'nev R.O. (kalter1213)	1
95	Babynin A. (Greenrain)	1
96	Shishkova E. (norta)	1
97	Kostina (fooxer)	1
98	Kushneruk K. (FiN17)	1
99	Ivanov I.I. (vlad91)	1
100	Ivanov A. (Artem3412)	1
101	Oktamov N.A. (Nurdaulet99)	1
102	Blikh (SeniorTomato)	1
103	Sidorov (fonari)	1
104	MRT V.V. (FrostMRT)	1
105	Bembeev A.V. (karagiozis)	1
106	Ivanov (gachi_bass)	1
107	Sh M. (mcntai)	1
108	Yurchenko Ya.V. (Fizmarazmat)	1
109	Lugovskoj R.E. (Interist)	1
110	Kuz'min S.N. (Taeron)	1					ban	ban
111	Unknown (Nick_nick322)	1
112	Mark B. (NOmark)	1
113	Petrov I.N. (stateonuris)	1
114	Ezhov (mysgsa)	1
115	Gurashkin K. (Crocko)	1
116	Liakh (JsBot)	1
117	Shakaryan B. (bogdanshakaryan)	1
118	Rachkov G.O. (Geraol)	1
119	K (Valeriya K)	1
120	R. (Wra1th)	1
121	Pavel P.P. (familka)	1
122	Obrubov A.A. (obrubov_sql-ex)	1					ban	ban
123	Muratov D.A. (Enovostuck)	1
124	Lysykh V.K. (Usilitel')	1
125	Zhiryakov V.V. (vladvladzero)	1
126	Gal'chenko E.A. (@kkkkayya)	1
127	kikiki (Swew)	1
128	K (Katalanhyan)	1
129	Maksutov I.I. (wtf_ilg)	1
130	Shaju A. (Aditya18)	1
131	Trushnikov M.N. (chajan)	1
132	Plyushkin D.S. (GornyyKozel)	1
133	Abdulganiev (echpochmak2k)	1
134	Charnetskaya (annaah)	1
135	Klepets N.A. (NIkDream)	1
136	Yuldasheva V. (viksic97)	1
137	Chepovskaya Yu.I. (Solllary)	1
138	Shtauh R. (Shtauh)	1
139	Polikarpov K. (kir0206)	1
140	Gruzitskaya (a.gruzitskaya)	1
141	Zlotskaya E.O. (Barmalizik)	1
142	Rozenberg A.N. (IIIyRa)	1
143	Timofeev Yu.E. (bncancri)	1
144	Bryukhanov I.D. (exee_24)	1
145	shrivastava A. (Aditya17)	1
146	Davlieva D.I. (Rovoam Kelkhun)	1
147	Kovalyov O.A. (OK_wwz)	1
148	Kalashnikov D.Yu. (frutt1)	1
149	m S.S. (meowthemess)	1
150	Ivanko (Dia_IV)	1
151	1 1.1. (TitanPwnz)	1
152	Sim L.F. (Chuu)	1
153	zhumagaliev U.B. (uraz)	1
154	Supe B. (kaka_0312)	1
155	Grazhdanova E.V. (ELENA!)	1
156	Bazarbayeva Z. (Zhazeekin)	1
157	Belyaev V. (vladislavitto)	1
158	Al S. (Sele123)	1
159	Mitov V.I. (V23101956)	1
160	Ivashura M.V. (xitachix)	1
161	Unregistered	22

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References