Today's statistics at "SQL Exercises"

September 06, 18:47 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	Miya A. (the_miya)	1			11	13
2	Folomkin I.N. (onevay)	1			5	5
3	Gitinomagomedov (gmansur88)	2	2	70		3
4	Zhuravlev D.A. (HEPHSQL)	1	2	2		2	6	7
5	Vajsberg G. (gvaisberg)	2					14	25
6	Nikitin T.E. (Now2Where)	1					15	24
7	Gorskin (coldblooded)	2					15	20
8	Spiridonov I.D. (knopki6752)	2					15	18
9	Bocharnikova A.A. (Aleena22)	1					10	17
10	Korobejko M.S. (Makkarich)	1					10	17
11	Surkov A.A. (Surkov_27)	1					12	16
12	KORGACHEVA E. (el_korgach)	1					11	14
13	Chuprikov A.D. (welfyz)	2					8	9
14	Zadirieva V.O. (NicaZadirieva)	3					5	8
15	Dusenko T.S. (EvgeniaUg22)	1					6	7
16	Zaytsev V.V. (Voff)	1					6	7
17	Kulepov (mi_20)	1					6	7
18	Artemev L. (Leonid S.)	2					4	7
19	Chepelev (vschepel1)	1					4	7
20	Nasyrova (Alewa86)	1					4	7
21	Baranov V.V. (vladosic)	3					5	5
22	Drobkov (uwen)	2					5	5
23	Ismajlova K.V. (ismkami)	1					5	5
24	Korotkikh V.D. (wwbaby)	1					5	5
25	Kolobin N.S. (gerod0t)	3					4	5
26	Ruban (danik krum)	1					4	5
27	stanin D.A. (awburw)	1					4	5
28	Zakirova G.F. (Atitlan)	2					3	5
29	P I. (yosoo)	1					3	5
30	jhjkh J.H. (tyfghfyj111)	2					4	4
31	DMRITsD (TheCupOfMagic)	1					3	4
32	Dulanov A.S. (8bobrik8)	2					2	4
33	Petsgol'dt P.K. (Pavel1PK)	1					2	4
34	Trofimenko V.I. (platan_vasia)	1					2	4
35	Rodov D.A. (Daniil8951)	3					3	3
36	Dasaev T. (t11mur)	1					3	3
37	Budyukin L.D. (StanceInfaimm)	1					2	3
38	Hope (Doemu)	1					2	3
39	Ponomarev A.M. (akimjlordian)	1					2	3
40	Khusnutdinov M.R. (opensoul)	2					2	2
41	Surname (Void_107)	1					ban	ban
42	Crux (Crux-ss)	1					1	2
43	Kurakin (billir)	1					1	2
44	Berseneva T.M. (Bersa_3785)	1					1	2
45	Levin Yu.A. (pdestroyer)	1					1	2
46	Zub (Rosavor.)	1					1	2
47	Egorov P. (pevlik)	1					1	2
48	Khar'govskaya A. (Arlet)	1					1	2
49	Leshchenko M. (mike4216)	1					1	2
50	Mukhamatkhanov A.Kh. (Airr)	2					1	1
51	Rudkovskij S. (smeat)	2					1	1
52	Yakupova N.R. (Nelli Yakupova)	2					1	1
53	Immis M. (ImMaks)	1					1	1
54	Gubenin M.A. (Yang_Doctor)	1					1	1
55	Alex A.A. (alexalex68t)	1					ban	ban
56	Poshelyuk O.A. (oksana_p1999)	1					1	1
57	Zabelin A. (AZ35)	1					1	1
58	Terekhov A. (terekhovart)	1					1	1
59	Volik S.V. (volks&s)	1					1	1
60	o M.Yu. (rina1)	1					1	1
61	Gordeev N.A. (n1k1t4)	1					1	1
62	pastel G.-. (sunsad)	1					1	1
63	Gudkova (super_sql_alina)	1					1	1
64	Biserov V.A. (vlad_pohlava)	1					1	1
65	Shustova (LazyRainbow)	2
66	Obukhov (Vladimir_O)	2
67	Sarkis'yan G. (gennadi_s)	2
68	Khudajberdyev A.A. (a.khudaiberdyev)	2
69	Kazantsev V.D. (kentiko_0)	2					ban	ban
70	Nikiforov L. (LeoNik991233212)	2
71	Krutikov M.V. (KrutikovMV)	2
72	Kurochkin P.A. (qwrqwr)	1
73	Krasovskij E.A. (pegoopik)	1
74	Koptel'tsev V. (selber)	1
75	Ivanov (markkram)	1					ban	ban
76	Vinogradova S.M. (Tigra1)	1
77	Yastrebova S.V. (WhiteGoshawk)	1					ban	ban
78	Ivan (vanya34)	1
79	Ushakov S. (MoyPsevdonim)	1
80	Panasyuk D. (Denisios)	1
81	Ivanov Yu.M. (Girt)	1
82	Komarov A.N. (Shveda Saulya)	1
83	Cherentsova M.M. (margo0821)	1
84	Vyroubalova (Imhelena)	1
85	Bulanov E. (Dsrkr1pper)	1
86	Murych (Soff2222)	1
87	Duplin A. (direction-)	1
88	Pavlov I.A. (WhiteCat110)	1					ban	ban
89	Bokova (Evrazh)	1
90	Og (Zoravar24)	1
91	P I.*. (IrinaPetr)	1
92	Arakcheeva P.R. (Ara_888)	1
93	Golovkin I.A. (GHOST2508)	1
94	R. (Wra1th)	1
95	Novikov M.R. (novikov2050)	1
96	Kuznetsova (kultya)	1					ban	ban
97	Popov A.O. (tataroimitator)	1
98	ganimed_123 (ganimed_123)	1
99	Khalilov M.D. (40percocets)	1
100	Baranov G.Yu. (Obraztsovsky)	1
101	Kharisov A.Ya. (Azamat777)	1
102	Khasanov D.M. (AKakojPsevdonim?)	1
103	Komissarov E. (Lalafa1)	1
104	Alex J.J. (Ichigo1)	1
105	Grigor'ev M.O. (MadMAX_X)	1
106	Amr (Amr132)	1
107	Sidorov D.V. (abdfe)	1
108	Konovalov I.V. (Ilyatop1gg)	1
109	Abramov A.E. (aleqseij)	1
110	Bor B.L. (Berutam)	1
111	Chagina U.A. (coolulitka)	1
112	tell M.M. (tellmemerci)	1
113	Babkin A.V. (BABKIN394)	1
114	Korolenko K.A. (Xenxen3011)	1
115	Kozitskij V.S. (podguZZZnik)	1
116	Poskrebyshev R.S. (sksy)	1
117	Zuev M.A. (Mikhail Zuev)	1
118	Khakhulina E.V. (Akulina)	1
119	Bulynin (Don.sql)	1
120	Keeper (KeeperKeeper)	1
121	Lyamin G.E. (Ge0_o)	1
122	Glebov G. (papavena67)	1
123	Maloykin (len4ik1337)	1
124	Kerimzhanova A. (ayayaya000)	1
125	Berezhnyi V. (viktorx1996)	1
126	Stalin I.V. (rodion1159)	1
127	Urusov E.D. (notimet0)	1
128	Bakanin M.A. (Misha1337)	1
129	Kim N. (mabl0ove)	1
130	Evdokimov M. (Maksim_E)	1
131	Unregistered	23

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References