Today's statistics at "SQL Exercises"

August 09, 22:54 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	Shibaev (saah)	2	1	59		2
2	Vinogradova S.M. (Tigra1)	1	1	131		2
3	Satpute R.C. (RAGINI23)	4					ban	ban
4	Latypov A.A. (VeilD)	1					15	21
5	Raut R.P. (Ruchiika)	3					15	20
6	sefedov (sefedov71)	1					13	19
7	Oktamov N. (1codex3)	1					15	18
8	Dmitriev N.V. (Son1do)	2					10	17
9	Smith S. (sam.smith)	1					9	17
10	Chechetin K.S. (Checas)	1					11	15
11	Hehe J.F. (umbar1234556)	2					9	15
12	Ivanov I.I. (gg_ffref)	1					10	13
13	Karpachov R.I. (RomanBanan)	1					10	13
14	Bnd V. (bondch)	1					7	12
15	Elizbaryan V.A. (SevVagr)	2					9	11
16	aa A.A. (anakin12345)	1					7	9
17	Pupkin V.I. (pupk1n)	1					6	9
18	Matushkina (AlenaM15)	1					5	9
19	pp A.Q. (rimski)	1					6	8
20	penkova (sonya3)	1					4	8
21	Yaschenko (Kristina.Yaschenko)	2					6	7
22	Uzdyaev V.E. (UVE2303)	2					6	7
23	S (Tinkershock)	1					6	7
24	shvydko K. (ksen157)	1					6	7
25	dastoo B. (bitez)	1					6	7
26	C A. (shadowplayer79)	3					5	7
27	Karimzhanuly R.R. (Raiym)	2					5	7
28	Uvaev A.A. (Pompilio)	3					4	7
29	Kupriyanova P.A. (@poluchku)	2					3	6
30	Kameneva (kristachak)	1					3	6
31	Moskovets N. (Nikolay2026)	3					5	5
32	cebov R. (rezc)	3					5	5
33	B (silver10lucky)	2					5	5
34	Roms V. (Nika294562)	1					5	5
35	Ramzaeva N.M. (NatRamz)	1					4	5
36	drobysheva M.A. (MARYYYYYYYYY)	2					3	5
37	Kalinin (Evil5567)	1					4	4
38	Izumovich R. (izuuum)	3					3	4
39	Oktamov N.A. (Nurdaulet99)	2					3	4
40	okate T.G. (Tanishq)	1					3	4
41	salmanov (onlu)	2					2	4
42	Vlasov (kirill181992)	1					2	4
43	Deva N.S. (nithin0303)	1					2	4
44	Belyakova A.S. (Belyak)	1					2	4
45	Getm (ereks)	2					3	3
46	Romanov A.A. (andromus)	1					3	3
47	Petrov A.O. (sqlteach)	1					3	3
48	Bondarenko M.V. (mishel_88)	1					3	3
49	Borisov D.R. (Dmitry.Bo)	3					2	3
50	Ryabikina (Allusikk)	2					2	3
51	Alex R.R. (AlexRedkn)	1					2	3
52	Sharafutdinova E.Yu. (ktshrfvt)	1					2	3
53	dve Z. (Exzotik)	1					2	3
54	Zharinov A. (artezhar)	1					2	2
55	Koval S. (kovales)	1					2	2
56	Prudaeva N.A. (Pavlova.nat.an)	3					1	2
57	Parfenov I. (HotDoge)	2					1	2
58	Zhuravlyov D. (banditto63)	2					1	2
59	Simonyan D. (Nnumby)	1					1	2
60	Bryukhanov A.N. (Antonus)	1					1	2
61	Tkacheva (polin12)	1					ban	ban
62	Kozhan D.V. (Dushen'ka)	1					1	2
63	Kozhemyako V.V. (Zoro_seb)	1					1	2
64	Strukov (StrukovSA)	1					1	2
65	Suntsov M. (SuntsovMax)	1					1	2
66	Berezovskaya D.V. (dashaeverafter)	1					1	2
67	ustyantsev D.V. (dimitryust)	1					1	2
68	Obukhov A.V. (Alex_71)	1					1	2
69	LbIsy (Bla_Bla_2)	1					1	2
70	Urakina K. (Ksu774)	1					1	2
71	Filippov D.A. (shketik)	1					1	2
72	Kul'kova (Elenovna123)	1					1	2
73	Savchenko (Delfinchek)	1					1	2
74	Saryglar (Daryma)	1					1	2
75	Bratsykhina T.A. (tatavia25)	3					1	1
76	Kanunnikov P.V. (Inoj777)	2					1	1
77	Kazantsev V.D. (kentiko_0)	2					ban	ban
78	Aslan O. (ok74y)	2					1	1
79	Narembekov T. (fountaineww)	1					1	1
80	Ivanova (nahi1)	1					1	1
81	Savin .V. (banana_crepee)	1					1	1
82	Pushkarev S. (PSV_n)	1					1	1
83	Matroskin K.F. (PseudoNim1)	1					1	1
84	Khorunzhij E.A. (wuwuqw)	1					1	1
85	Mironov (asterialka)	1					1	1
86	Penis A.Kh. (svansvan)	1					1	1
87	Bogo M. (mbwmm)	1					1	1
88	Sadovaya K.A. (k1x07)	3
89	Skibin V.V. (SQL_vvs)	3
90	Krasovskij E.A. (pegoopik)	2
91	Georgievskij O. (vezdessushiy)	2					ban	ban
92	Argunov (russs111)	2
93	Sarkis'yan G. (gennadi_s)	2
94	Houston H.H. (Houston12345)	2
95	Vetkalova (Ved22)	2
96	Konovalov I.V. (Ilyatop1gg)	2
97	Permyakova (dariamjstc888)	2
98	Karashev D. (karashev)	2
99	Kolpin K.A. (KirillKolpin)	2
100	Alexandru (alex911)	1
101	Koptel'tsev V. (selber)	1
102	sol (RinSlm)	1
103	Gitinomagomedov (gmansur88)	1
104	Denisov D. (Warpach)	1
105	Stogov (Kiriver)	1
106	Orlov A. (esterio)	1
107	Bragin . (br-v-v)	1
108	Tsalko I. (tsobako)	1
109	Belousov S.S. (PINDJ)	1
110	Guseinov A. (Ali_G)	1
111	Plutalov A.Yu. (Dronn69)	1
112	Vego (JoeVego)	1
113	Muradyan F. (DarthVaderSQL)	1
114	qwe R.Y. (TheWrongOne992)	1					ban	ban
115	Borschovetskij I.N. (Igor2.0)	1
116	Tagiev K.R. (Magistr_Kenan)	1
117	df D.D. (Xenia_ku)	1
118	Romantsov (valrom)	1
119	Feed T.D. (rainbowNipples)	1
120	Ivanov I. (igires)	1
121	Skuratov S.A. (skuratov-sa)	1
122	Davydov O. (Oleg_Davidoff)	1
123	Yakovlev (poulyak)	1
124	Mikhajlov A.A. (Mhalex)	1
125	Rudinskij T.I. (ProstoFilya)	1
126	Lis (HolyAngelOfDeath)	1
127	Pashin (niemand2)	1
128	Nikolaevskij N.N. (n1k0lay-3n)	1
129	eject E. (ejectrulz)	1
130	Bykov (sky-shore)	1
131	Rodin (uoloki)	1
132	Litvinenko O. (loksana1)	1					ban	ban
133	Tumasyan A.A. (LikaTu)	1
134	Muratov D.A. (Enovostuck)	1
135	Korolev R.V. (zouker)	1
136	Korolkovs (fkorolkov2)	1
137	Rebovskij (x-lerasim13)	1
138	Novikov A.N. (Takuan)	1
139	Odnokurtsev (AlFochino)	1
140	Gorchakova N. (nadya-qo)	1
141	Ismagulov Z. (Zhanibek_Ismagulov)	1
142	Goldobin E.G. (prm259)	1
143	Chernenko (Schwartz_max)	1
144	Ibo K. (Kemchik)	1
145	Klepets N.A. (NIkDream)	1
146	Ponomarev M.P. (MatveyF)	1
147	Korolev A.A. (Ereticheskij Chajnik)	1
148	Potapov (domnakrasnoi)	1
149	Shevchenko G.M. (psychokitty01)	1
150	Moroz O.I. (Oleksii_Moro)	1
151	Amr (Amr132)	1
152	M O. (uzProAli)	1
153	Merkulov (Lesan)	1
154	Kim D. (DkimsonSQL)	1
155	edmond2 (edmond2)	1
156	Khachaturyan S. (Samvelio)	1
157	Golyandina (nap@)	1
158	Dobrynin (DanilDV)	1
159	kofuku (Kofuku)	1
160	Xigitan X.X. (Userxigitan)	1
161	Murin I. (Ilya__M)	1
162	Orazaliev E.S. (AkameEW)	1
163	Bykov (n0yabrin)	1
164	Shamsheeva E.D. (kate_immakuleta)	1
165	Psevda O. (Psevdada)	1
166	yaaa Y. (sunchiik.@)	1
167	Fajzullaev T.Yu. (rul')	1
168	Bokuchava A.G. (Teddy?)	1
169	Bykova (Dar17)	1
170	Shpakov T. (Serotonin123)	1
171	Nikonova N.A. (nikonovanatt)	1
172	Kuznetsova E. (el_kalash)	1
173	Amirov R.R. (raikiri)	1
174	Mir (mujokan)	1
175	Filimonov D.P. (danila28)	1
176	Avetisyan D.G. (David_aveti)	1
177	Voinskaya A.A. (Selest48)	1
178	Shutyuk (hero775)	1
179	Unregistered	32

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References