Today's statistics at "SQL Exercises"

December 01, 10:43 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	sapa N.B. (nurasylsapa)	2			25	34	ban	ban
2	Sultan A.M. (artless_)	1			25	34	ban	ban
3	nrysdavletova (nrysdavletova)	1			25	34	ban	ban
4	?mіrtaj R. (Rakhat01)	1			25	34	ban	ban
5	S?rsenbaj R. (rasxy02)	2			24	32	ban	ban
6	Sadyqqq D.-. (nearside)	2			24	32	ban	ban
7	Rakhman K. (Kuka001)	1			19	26	ban	ban
8	Zhandaulet D.D. (darhandarhan)	1			19	25
9	Bolat N.N. (nnnur)	1			18	24
10	Zhandaulet D.D. (darhanlev)	2			14	19	ban	ban
11	Protektor S. (Animatioff)	1			14	19	ban	ban
12	Shukir E.K. (Era6165)	1			11	18	ban	ban
13	Piskunov K.M. (Klimast)	1			9	15
14	Nurlanov N.N. (Nurlanov Nurbol)	1			10	11	10	13
15	dyusenbin K.K. (Dyustnbinabygtfh)	1			10	10	ban	ban
16	Stich L.S. (Stitch05)	1			5	7
17	Idrissov Y.A. (Kosharik_545)	1	5	5		6
18	Krutoy A.M. (MacroMurzik)	3	4	4		5	ban	ban
19	Koland M.G. (Michael Kol)	1			5	5	2	3
20	El'nikov I.V. (ilya911)	1			5	5
21	Zhaksylykova M. (madmed0107)	1	3	3		4	ban	ban
22	Nikithorasdasdas (Nikithor1122)	2			3	3	ban	ban
23	srg331 (srg_331)	1			3	3
24	grigor'eva L.F. (linooas)	2	1	1		1
25	Goldakovskij D. (Golden 18)	1	1	-7		1
26	Tatarchuk N.V. (fraggy66)	1	1	-13		1
27	Gotal'skij (IvanGot)	1			1	1
28	M (DanilM2304)	1			1	1
29	Azamat K. (Azamat cs10 23-09)	1			1	1	ban	ban
30	Kereniyazov E.E. (kereniyazov04)	1			1	1	ban	ban
31	Peters A.D. (artyom_tonx)	3					32	47
32	Jurkoit M. (Motiejus00)	1					15	27
33	Chupikov A.P. (Andrucom)	1					15	26
34	Meleshko A. (Albina_Viktorovna)	3					14	20
35	Chumachenko A.E. (TASURI)	2					ban	ban
36	Guriev S.S. (GURIEV)	1					ban	ban
37	Shuranov A.E. (Archyn)	1					15	18
38	Belykh A. (AnnaBelykh)	3					11	18
39	Boltenkova D.V. (dar.daries)	1					ban	ban
40	Karapetyan M. (mar.kar)	3					11	16
41	Gulyukina A. (Alisa123)	1					10	16
42	Egorova M. (maria2510_)	1					9	11
43	B A.O. (Alex_Bryus)	3					8	11
44	Dubovoj I. (Shaza)	1					8	11
45	Sukhotin A. (Artem_77)	2					ban	ban
46	Bondar' Yu.T. (Sai_owl)	1					7	10
47	Burenkov O.D. (ReDlY28)	1					4	8
48	Smolina A.V. (Smolina_al)	1					4	8
49	Turdaliev D.Z. (Dosya8912)	2					6	7
50	Alibi (Alibi077)	1					6	7
51	Muzaffarli E.I. (elgun2001)	1					6	7
52	Vodyanitskij S. (Summer breeze)	1					5	7
53	Poskryakov A.V. (APoskryakov)	2					4	6
54	Kanischev M.V. (blvckiz)	1					3	6
55	Pavlyuchenkova V.A. (Ah9LBlun)	1					3	6
56	bobikovich B.B. (bobik007)	1					5	5
57	P N.V. (Kolianio)	1					4	5
58	Finogeev M. (MaxFinog)	2					3	5
59	Deli M.D. (maximka_sk)	2					3	4
60	Martem'yanova E.G. (heks)	1					3	4
61	Surname (margaux)	1					3	4
62	Tikhonova M. (timary98)	1					2	4
63	Kurtov V.A. (vak228339)	1					ban	ban
64	Guriev S.S. (GURIEV1)	1					ban	ban
65	Arkhipova O.A. (incognito159753)	1					3	3
66	petrov V.O. (petya5)	1					3	3
67	Voroshkevich Ya.S. (yanavoroshkevich)	1					2	3
68	Ushakov V.M. (DarKGiro)	1					ban	ban
69	Samojlov A. (SamoylovAA)	1					2	3
70	Petrov Y. (YuriPetrov)	1					2	2
71	ilhan S.-. (sryilhn)	1					ban	ban
72	Chistov S.R. (semennnnn)	1					2	2
73	Gusel'nikova A.I. (Alina Guselnikova)	1					2	2
74	Belyak (TheTester)	2					1	2
75	Svidinskiy (lt.Svidinskiy1955)	2					1	2
76	Gep A. (gepan)	1					ban	ban
77	Gregory (Really_cool_boy2000)	1					1	2
78	Grinyova E.P. (Neru38_)	1					1	2
79	Ryabov E. (_-ZloY-_)	1					1	2
80	Samarets I.K. (Ceramas)	1					1	2
81	Ustarkhanov A.I. (nounaim)	1					1	2
82	K N. (nastenka0)	1					1	2
83	Pashin S. (EKVA)	1					ban	ban
84	Kas'yanova A. (alenka@555)	1					1	2
85	Kursedov N.Yu. (skale46)	1					1	2
86	May (rukojop_333)	1					1	2
87	rysdavletova (nikokoo)	1					ban	ban
88	Odnokurtsev (AlFochino)	3					1	1
89	Borschevskij I.O. (R00K1E)	2					1	1
90	Shpak (sq0retz)	1					1	1
91	Sarzhan (Sarzhan)	1					1	1
92	Sabanova (diana1989)	1					1	1
93	Trubitsyn K. (Kosttru)	1					1	1
94	Gusakova O.P. (Oksana Gusakova)	1					1	1
95	Peters A.D. (artyom_ton)	1					1	1
96	Gribkova I.S. (dgd__pg)	1					1	1
97	G D.L. (StepGGGGggg112233)	5
98	Murza A. (MacroDonner)	4					ban	ban
99	Toleubay M. (mukh4medzhan)	4					ban	ban
100	Bolat N.N. (nurik667666)	3					ban	ban
101	?mіrtaj R. (Rakhat05)	3					ban	ban
102	Divnin D.V. (Danil8881@)	2					ban	ban
103	Mazepa A.D. (AnnaMazepa)	2					ban	ban
104	Syromyatnikov N.D. (Aisuru)	2
105	Riskov G.S. (Gleb_Riskov)	2					ban	ban
106	Kochetov I.V. (zzach)	2
107	Sapa N.B. (Nurik17)	2					ban	ban
108	sadyk D.D. (near444)	2					ban	ban
109	Minaev A.K. (iqos222)	2					ban	ban
110	Maslenikov O.N. (Monkl)	2
111	Merangulyan R.A. (Rob___)	2
112	Bauer S. (Sergej_KEM)	1
113	v X.Z. (testik-777)	1					ban	ban
114	Koptel'tsev V. (selber)	1
115	Bajdaev D.A. (Dagva)	1
116	Fedchenko G. (gmf)	1					ban	ban
117	Chebotareva A.O. (Serafff)	1
118	Kucherov A.A. (Arahnid)	1
119	Smith (tibacityblues)	1
120	Pushnoj (arkah)	1					ban	ban
121	Yakshin I.V. (ivan_y)	1
122	mani (mk007)	1
123	Noskov A.A. (Chessmaster123)	1
124	Grigor'eva M. (battle_mink)	1
125	Jh A.A. (mafficc)	1
126	Plotskij K.N. (Cybernetik)	1
127	Usova E.A. (Bete_Fidele)	1
128	Morozov A.A. (Manstek)	1
129	Bokov (MorisBokov)	1					ban	ban
130	Y V.V. (gladdss)	1
131	Strunnikova K.E. (WasabiFox)	1					ban	ban
132	Reznichuk K.I. (Deancage)	1
133	Skokov B.S. (leks$$)	1
134	Burov V.N. (exLesnick)	1
135	Yashin I.D. (ZibyBk)	1
136	Ivanov (userTest1)	1
137	Aniskovich E. (evgeniyaniskovich)	1
138	Gridasov A.V. (AlBAkek)	1
139	Kashevarov D.I. (Fileron)	1
140	P S. (evgpol)	1
141	Dashinimaeva (dsvsusu)	1					ban	ban
142	Riabcev (riabcev)	1
143	Loktev K.O. (Hannes)	1
144	Matvej M.B. (kuhvbnffdfsdsd)	1
145	Odegov A.I. (KovroLitik)	1
146	R. (Wra1th)	1
147	Bilyachenko D.N. (LextorD)	1
148	Zhandaulet D.D. (darhanzan)	1					ban	ban
149	Chernyshev I. (xray_pro3)	1
150	Komov S.M. (Komov S. M.)	1					ban	ban
151	Top D. (Dashk1a)	1
152	Maratov O. (spoer)	1					ban	ban
153	ASI (asi_sql)	1
154	Lysykh V.K. (Usilitel')	1
155	Velichenkov D.A. (Galotane)	1					ban	ban
156	Martirosyan V.V. (trillline)	1
157	Abramov V. (Vitaminez)	1
158	Simonyan N.V. (Nona Simonyan)	1
159	zxc N.N. (nearss)	1					ban	ban
160	Rubtsov D.V. (wrbzrare)	1
161	Shukir E.K. (Eraso)	1					ban	ban
162	Omirzak A.A. (Alisher010101)	1					ban	ban
163	Shukir E.K. (Eraaasss2)	1					ban	ban
164	Beisenbai A.S. (Kukash05)	1
165	Adil'baev A.D. (altair___)	1					ban	ban
166	Yastrebov D.D. (Yakimori)	1
167	Yakun (Yaka3)	1
168	Karpets A.A. (Alena Karpets)	1					ban	ban
169	Evtikhovich A.A. (FECHER)	1
170	Aref'eva V.Ya. (vareni4naya)	1
171	Erzhov (pepsik)	1					ban	ban
172	Shestakov E.D. (wnwnkm3)	1
173	rr D.O. (Den44845)	1
174	Polimonov I.A. (IvanPolimonov)	1
175	Pastukhov A.A. (Counselor7496)	1
176	Ryasin V.A. (I_Zero_I)	1
177	Bo P. (biboboba)	1
178	Inkognit A. (superSanya)	1
179	Grinets D.A. (Miyoka)	1
180	S?rsenbaj R. (rasxy01)	1					ban	ban
181	Shulepov I.P. (Vanek778)	1
182	qwertovich Q.Q. (qwerty0_5)	1					ban	ban
183	rysdav (neifirejf)	1					ban	ban
184	sadyk D.D. (NEARSQ)	1					ban	ban
185	Kereniyazov E.E. (yera0405)	1					ban	ban
186	Nik (Kris_N_30)	1
187	Mandzhieva D.A. (MDana)	1
188	Rubtsov R.A. (Romario549)	1
189	Kanunnikov P.V. (Inoj777)	1
190	Khanikyan L.-. (Moonaly.00)	1
191	Kil'dishov D.A. (denis kildishov)	1
192	Lameko A.V. (Anna Vodianova)	1
193	Rudichenko A.A. (NasRud)	1
194	Atalykov (Ariems)	1
195	asfasfafasf (Nikitos112211221)	1					ban	ban
196	Kazantsev (SemiramiduZ)	1
197	Unregistered	31

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References