Today's statistics at "SQL Exercises"

May 18, 12:35 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	Semin A.V. (Semin Artyom)	2	3	3	9	19	13	16
2	Ab R. (rrXX)	1	7	-4		9	ban	ban
3	Odnokurtsev (AlFochino)	4	1	106		3
4	Gorbunov M.S. (gms)	1	1	41		3
5	Safronov P.A. (Paulus73)	1	1	106		3
6	Bossik (Bossikasik)	1			3	3
7	Code A.X. (brutozz code)	1	1	1		1	1	1
8	Kazitskij (ewgwfwefgvwe)	1					ban	ban
9	Golovenko M. (gomotya)	1					15	24
10	Petrov D.A. (Ast1mel)	1					15	24
11	Gjketcjdf (eelenana)	1					15	18
12	Popov (GennadiyPI2)	1					13	18
13	Malyshev V.S. (RedSunVladimir)	1					12	15
14	Gimadeev T. (VLEENX)	1					11	15
15	Kobyakova A.D. (dadanetnet)	1					11	15
16	Lantukh (elili)	1					13	14
17	25cm M.H. (Mctraher26cm)	1					10	12
18	Govorov S. (serggv)	1					9	11
19	Aidarova A. (allaroomie)	1					8	11
20	Vlasova (fjdkjs)	1					7	11
21	AbdulKhader F. (Firaase)	1					6	10
22	ggg G.G. (wdatboy3)	1					ban	ban
23	pashtetov P.P. (pashtetikxd)	1					5	9
24	Vasil'ev (GudiniMoonlight)	1					6	8
25	Drankevich (D_Jopa)	1					5	8
26	Myamzin E.P. (Ango'shtpsch)	1					5	8
27	Marar A.S. (16_capybara_02)	2					4	8
28	olegpsh (oleg1909)	1					6	7
29	nikulina N. (mayfau)	1					6	7
30	Q (ala4ste)	2					5	7
31	Vlad V.V. (Bleckeid)	1					5	7
32	Krit (Kritty)	1					5	7
33	ASD D.A. (Artem3211232)	1					5	7
34	Abubakirova D.A. (Druleys)	1					6	6
35	Kovalenko N. (Nicos)	1					ban	ban
36	Revenko M.A. (CptDisturbed)	1					ban	ban
37	Legotin (islego)	2					5	5
38	Dzhapparova A.Z. (alllllso)	1					5	5
39	Orynbaev A.B. (L1arr)	1					5	5
40	Matyuhanov D.A. (Lineagi4)	2					3	5
41	Grabovskij A.K. (aleshamay)	1					3	5
42	Batashova S. (sbatashova)	1					3	5
43	Aleshina K.A. (kira18126)	1					4	4
44	Smagin D. (play23rus)	1					4	4
45	Chervyakov S.V. (chervyakovv23pt1)	2					3	4
46	Gus'kov V.M. (Vl4ditor)	1					2	4
47	Kotov E.V. (playaouttaund)	1					2	4
48	Serdobintsev N.M. (mikhalychh)	1					3	3
49	Duisenbayev (3UMF)	1					3	3
50	Bazylev T.A. (timofeib777)	1					2	3
51	evronimus E.E. (Evronimus)	1					2	3
52	Lavrov A.P. (lavoient)	1					2	3
53	Morozov G.A. (Morozz2222)	1					2	3
54	Nikolaeva N. (Nata1507)	1					2	3
55	Arabyan M. (armel)	1					2	3
56	Zap M. (MarinaZap)	2					2	2
57	Ermakov Ya.V. (Yaroslav Ermakov)	2					2	2
58	Shokhalevich A.N. (Anashok)	1					2	2
59	Petrova G.I. (Galina_psql)	1					2	2
60	V A.Kh. (Arslan9)	1					2	2
61	D'yakonov Ya.E. (charondm)	1					2	2
62	Sapsin M.A. (Maksim Sapsin)	1					2	2
63	Moldakynov A.A. (Nomad444)	1					2	2
64	Lobanova (chearoa)	1					2	2
65	Kupalikhin A.V. (ku_anvi)	1					2	2
66	Shevtsov K. (KonstantinXL)	7					1	2
67	Serdyuchenko E.Yu. (eserdyuchenko)	2					ban	ban
68	solovev A.A. (otom4ik53)	1					1	2
69	Idrisov A.S. (AinurSQL)	1					1	2
70	Kortukova (TiredPufferFish)	1					1	2
71	tsoy (hznikdima123)	1					1	2
72	smith (eng MN)	1					ban	ban
73	Zakharov (Ave_Asuka)	1					1	2
74	Tskhao N.M. (caonimenma1)	1					1	2
75	Ilina N. (lkjahfjkseb)	1					1	2
76	K (Levanlomg)	1					1	2
77	Zubkov D. (Dm54)	1					1	2
78	yuyuyu V.N. (vladdossik)	1					1	2
79	Katashevskij (YaUstalPridumyvat'Nik)	1					ban	ban
80	Ibragimova A. (anya_tusina)	1					1	1
81	Dorokhin (Every_Name_Is_Taken)	1					1	1
82	Sim (be372934)	1					1	1
83	Taranova A.V. (Zapros1)	1					1	1
84	Mal'tsev M.V. (123321534252)	1					1	1
85	Krasovskij E.A. (pegoopik)	3
86	Koptel'tsev V. (selber)	2
87	Petrov N.V. (Nick21)	2
88	Kupriyanova T.V. (Tat'yana Kupriyanova)	2
89	kochetov I. (ilyaali)	2
90	Potemkin (Yazon_79)	2
91	Zheleznov (zhelezzyaka)	2
92	Rastorguev (SnegopadLa)	2
93	Lymar' K.K. (Kirill L (TsI))	2
94	Vyazovetskov A.S. (alex_v)	1
95	Ivandaev M.V. (Mih@)	1
96	Shibaev (saah)	1
97	Usachev I.E. (StereoTip)	1
98	Panov A. (Shirokuma)	1
99	Savin A.Yu. (mirovingin)	1
100	Sent (Sergey391)	1
101	Ibragimov (damiracle)	1
102	Evtishina K. (Kseniya_E)	1
103	Gataulin R. (rrrah423)	1
104	Ant D.W. (Lolicon)	1					ban	ban
105	Burdin S.V. (SoBuS)	1
106	Kostina (DeimosMedici)	1
107	Pochtova E.A. (Evgesha13)	1
108	Zhekov K. (Zhekov)	1
109	Borschovetskij I.N. (Igor2.0)	1
110	Red'ko A.A. (DarkiMouse)	1
111	Kamarouski A. (akamarouski)	1
112	Sokolov D.O. (Denissokol55)	1
113	Samigullina I.A. (IngaSam)	1					ban	ban
114	Savenkov N. (nikuta1999)	1
115	Stolyarov A.S. (ArtiWell?\_(?)_/?)	1					ban	ban
116	Batuev D.T. (DabaB)	1					ban	ban
117	Sarkis'yan G. (gennadi_s)	1
118	Noskin (CptBubbles)	1
119	Sadykova E.F. (Ella_46)	1
120	Musabaliev (samiro)	1
121	Popov G. (Nimble45)	1
122	Shulyak D. (RetrainSQL)	1
123	P I.*. (IrinaPetr)	1
124	Ziminova J. (Julia_Ziminova)	1
125	Komyakov Yu.V. (dreamersleet)	1
126	R. (Wra1th)	1
127	Stepanov (LexFrom)	1
128	Shmelyova V. (Nika_19)	1
129	Korolev R.V. (zouker)	1
130	Omarali kyzy N. (quenrzh2)	1					ban	ban
131	Lysykh V.K. (Usilitel')	1
132	Kolesnikov S.O. (bulbasaurus)	1
133	Glushko S.Yu. (vechnojunior)	1
134	Alekseev A.S. (Andser)	1
135	Postnikov (styofik)	1
136	Kukhto V.S. (VeronikaKukhta)	1
137	Smol'nikov F.A. (_smolnikov_)	1
138	Tolstik D.N. (DiNiKiN_II)	1
139	Dron D.D. (Dron1234)	1
140	Lagunov M.T. (Opengate48)	1
141	Leonov D.V. (xannnnn)	1
142	Chernov V. (ElviSoK)	1
143	Ivanov M.A. (maks_ivanov)	1					ban	ban
144	Pil'chinov I. (Sengoku)	1
145	Moroz A.I. (frostanast)	1
146	steklov (peter steklov)	1
147	Lastochkina (0Mak0)	1
148	Khanipov R. (gotlib_bbb)	1
149	Murzabekov M.Kh. (Magich)	1					ban	ban
150	Schegol' Yu. (JulyaSchegol)	1
151	Romanov (JerseyDevil)	1
152	Bochkova (AnyaBo)	1
153	qwerty Q.Q. (qwerty12345678967)	1
154	Makarova K.Yu. (kira212)	1
155	Belous S.A. (Poman4233)	1
156	um G.P. (hjkn)	1
157	Gutsalenko M. (maks1mg)	1
158	Grigor'ev (aboba_mec2)	1
159	Gorina V.V. (VG)	1
160	Anikienko U.G. (Uliana_a)	1
161	S (n1pron)	1
162	Shaekhov A.G. (shaekhovazat1)	1
163	Novikova V. (ladanov)	1
164	Antyufeeva (krakseser)	1
165	Kto-to (9ITeb9IHaudy)	1					ban	ban
166	123 (dwafghzjkxhcjkzxcv)	1
167	Zinchuk (misha1113)	1
168	GRIGORYAN A. (Agyanan)	1
169	T (_Nikson_)	1
170	Scheriyazdanov R. (raketa3145)	1
171	Unregistered	26

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References