Today's statistics at "SQL Exercises"

May 08, 12:42 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	Vakulko A.V. (VAlexandrV)	2			6	6
2	Zubov D.Z. (Dmitrij84)	1			4	4
3	Emel'yanova V.S. (rigggayaa)	1			3	3	5	5
4	Ivanov I.I. (mollyyy313)	3	1	-9		1
5	Lutskina E.V. (Lina-eva)	1					15	26
6	asffaasf F.F. (rabotasql222)	1					15	26
7	Gorobenko S.A. (Gorobenkos)	2					15	23
8	shaoashschaosh F.F. (rabotasql2)	3					15	22
9	Tubshinova N.R. (Tubshinova Nayana 01241)	1					15	22
10	Filimonov -.-. (filde)	1					13	22
11	Buslenko M.E. (Exquentor)	1					15	21
12	Lymar' K.K. (Kirill L (TsI))	1					11	19
13	Lomakina (lomchik)	2					13	16
14	Makarov I.V. (Poslednyaya parta BA-23)	2					10	13
15	Kulmanova (Aikesha)	2					ban	ban
16	Zubkov D. (Dm54)	4					7	11
17	Grigor'ev (aboba_mec2)	1					7	11
18	Mironova E.I. (tRaWa)	1					5	10
19	Pagin D.F. (paginxd)	1					6	7
20	Ksenia (Ksenia_Murashka)	1					4	6
21	Marchello K.G. (audi100c3)	2					ban	ban
22	Vasilyov A.A. (quiry)	1					3	6
23	Tyul'berova A. (ann_tyulberova)	1					5	5
24	L (cisleiris)	1					5	5
25	nevil M. (noob26)	1					5	5
26	Larin A.V. (Arti63)	1					5	5
27	Duisenbayev (3UMF)	2					4	5
28	Svezhov (lsvezhl)	1					3	5
29	P A.A. (YourPast)	1					3	5
30	Nikolskaya (lannik)	2					4	4
31	Imesch O. (Iesch_O)	1					4	4
32	Vasil'ev (GudiniMoonlight)	1					3	4
33	um G.P. (hjkn)	1					3	4
34	Sharbatov Y. (YusifSH)	1					2	4
35	Altukhov A.V. (MLPeek)	2					2	3
36	Rinn I. (HoneyRinn)	1					2	3
37	Ivanchenko (Katkopryanik)	2					2	2
38	Bochagova E.A. (nekkkkate1)	1					2	2
39	Fomenko I. (sheetovo)	1					2	2
40	Ivanov I.I. (vlad91)	2					1	2
41	Bair (lootta)	2					1	2
42	titova K.A. (katrina_ksam)	1					1	2
43	Ivanov (kronon)	1					1	2
44	Begalieva Z.A. (Zarina0509)	1					1	2
45	Pashaev R.A. (Pashaev)	1					1	2
46	Komyakov Yu.V. (dreamersleet)	1					1	2
47	Krajnova A.S. (Atriya)	1					1	2
48	Savchenko S.A. (soffy)	1					1	2
49	Oks (kir_oxx)	1					1	2
50	Gamalevv D.O. (DenisJavaJunior)	1					1	2
51	Kuz'mina A.E. (nnkkzz)	1					1	2
52	Kekov N.M. (EtaKto)	1					1	2
53	Sivakova (anna666)	1					ban	ban
54	Rzaev (tgrnk)	1					1	2
55	Bocharova V.E. (Malvisa)	1					1	2
56	Romanov (JerseyDevil)	1					1	2
57	Shinkevich I.V. (aivan96)	1					1	2
58	Nikonov S.A. (serg0123456789)	1					1	2
59	smagulov (kaimak)	1					1	2
60	Natalenko K.M. (Ksanimus)	1					1	2
61	Klim (TanyaKlim)	1					1	1
62	Berezovskaya D.V. (dashaeverafter)	1					1	1
63	Surina K.A. (MaltheF)	1					1	1
64	Smol'nikov F.A. (_smolnikov_)	1					1	1
65	Shaikhov (Skollhild)	1					1	1
66	Voronova T. (Selena87)	1					1	1
67	Zap M. (MarinaZap)	1					1	1
68	Tapdigov A. (emanat-1)	6
69	Vyazovetskov A.S. (alex_v)	2
70	Kurochkin P.A. (qwrqwr)	2
71	Gorbunov M.S. (gms)	2
72	Sarkis'yan G. (gennadi_s)	2
73	Krivenko P.V. (PaveldI/dt)	2
74	Finogeev M. (MaxFinog)	2
75	Komov S.M. (Komov S. M.)	2
76	Alekseev A.S. (Andser)	2
77	M (DanilM2304)	2
78	Nas Z.I. (CkellTrop)	2
79	Skudnev B.K. (bogdsk)	2
80	Meschenkova V. (Lera1001)	2
81	Makarov I.A. (_Bkmz_)	1
82	Koptel'tsev V. (selber)	1
83	Polyakov V.M. (rock_4)	1
84	Pinev O.T. (Pinev)	1
85	abs V.S. (veron.en55)	1
86	Titov (AleksTi)	1
87	Gapanovich P.A. (drestar1)	1
88	Kucherenko (Master666)	1
89	Ivanov (Grigorash)	1
90	Litvinov M.N. (Maxim_Lit)	1					ban	ban
91	Pupkin A.A. (SnakeJkeeee)	1
92	Komarov A.N. (Shveda Saulya)	1
93	Tugusheva (Ellykiss64)	1
94	Fzy F.F. (Fzysx)	1
95	Klykov M. (Pentious)	1
96	Karaev I.D. (kappawave)	1
97	Nabiev (Kamal)	1
98	Noskov A.A. (Chessmaster123)	1
99	Kolodijchuk O. (Nova54)	1
100	Viktorova (daxa_vic)	1
101	Metelitsa L. (Lada_M)	1
102	Ivanov S.E. (Panch1317)	1
103	F M. (marie_f)	1
104	Shu (little_jus)	1
105	Khamuev (Tabooret)	1
106	Revenko M.A. (CptDisturbed)	1
107	Gorobinskij (demonguest)	1
108	tsoy (hznikdima123)	1
109	Sudarev S.S. (papoika)	1
110	R. (Wra1th)	1
111	Stepanov (LexFrom)	1
112	Samokhin D. (hyojo)	1
113	iskarova L. (cyberdeadline)	1
114	ASI (asi_sql)	1
115	Fedoseev A. (woodkid)	1
116	Lysykh V.K. (Usilitel')	1
117	Dallas C. (SupaSasha)	1
118	Velichenkov D.A. (Galotane)	1					ban	ban
119	Familiya (fgsnarg1)	1
120	Kolesnikov S.O. (bulbasaurus)	1
121	Safronov P.A. (Paulus73)	1
122	- D.O. (Denis.C)	1
123	Buraevskaya A.O. (Alexandra Buraevskaya)	1
124	Lagunov M.T. (Opengate48)	1
125	N Z. (Zion93)	1
126	Drankevich (D_Jopa)	1
127	Bedir F. (Fedo92)	1
128	Moiseeva P.S. (polinkafuture1)	1
129	Zakharov (Ave_Asuka)	1
130	ganiev M.Kh. (kiseyama66)	1
131	Makarova A.A. (Pinkochka)	1
132	Bogatyrev N.V. (BNV2873)	1					ban	ban
133	U A.V. (Monk35)	1
134	Utkin S.A. (Aethel)	1
135	Soryu A.L. (RemiliaScarlet3)	1
136	Ivanova (nahi1)	1
137	Ilina N. (lkjahfjkseb)	1
138	Serdyuchenko E.Yu. (eserdyuchenko)	1					ban	ban
139	Gavrilova A.P. (GAPi)	1
140	Tyutyurikov E.A. (ewgtut_)	1
141	Amorim A.M. (Xann1)	1
142	Kochanov V. (Kochanov.vi)	1
143	Selivanova (Valkyria)	1
144	Tsyganov A.D. (KernHets)	1
145	Val'degrejv G. (Anon21)	1
146	Anisimov E.A. (egor_anisimov)	1
147	Malyukin K.A. (Stepan228)	1
148	sky D.L. (sky9)	1
149	Karneev A.M. (Artem Karneev)	1
150	Nikishaev G.V. (Tiran_DR)	1
151	Nenakhov (Aklin)	1
152	Surdova E. (liz1111111)	1
153	1 (Darklol)	1
154	Matveyev Y. (hoshimaru)	1
155	Makarov I.V. (rabotasql22)	1
156	Yarmukhametova Yu. (Uliya456)	1
157	Jus S. (Buckman)	1
158	Pogodin I.D. (Nst_94)	1
159	Filippov S.M. (sigkigovn0)	1
160	Vereschagin V.E. (Izrail)	1
161	Unregistered	15

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References