Today's statistics at "SQL Exercises"

August 22, 22:14 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	Astrelina D. (smiling_corgi)	2	1	1		1	15	24
2	Saukin U. (novichok_PA)	1					15	21
3	Terekhov A. (terekhovart)	2					15	19
4	Van der Vin P.V. (DestroEdinson)	1					15	19
5	Solomnikova (AlexSolom)	2					15	18
6	Murlyk M.M. (Myau Murych)	1					13	16
7	Kravtsova M.I. (k_marina89)	1					8	16
8	Goncharov A.I. (Senechka31)	1					10	13
9	Mel'nichenko I. (Ira343)	2					7	11
10	Popova A.O. (AnnaPo12)	2					5	11
11	Kulikov A.Yu. (Ondrata)	1					6	10
12	Chapleeva A.M. (chapllucky)	1					9	9
13	lamer (-lamer-)	3					8	9
14	Gaiworonsky (Mexus)	1					8	9
15	Myrkalykov (aslanbai)	2					7	9
16	Taranoa D. (domino61)	1					7	9
17	Koala2 (Koala2)	1					6	9
18	Chernyshev (Nikitacher)	2					5	9
19	Az B. (Azzerhov)	2					6	8
20	Vershinina A. (KI RA)	1					6	8
21	pushkarev V.S. (tt3dg)	3					6	7
22	Antoshkin A.A. (Artur_2107)	2					6	7
23	Alibekov K. (forever_buumble)	1					6	7
24	Laktionova N.V. (laktionovan)	1					6	7
25	Shagalov O.L. (TTC)	1					5	7
26	Lcdma (LCDM138)	3					4	7
27	Sviridov A.A. (rosnidatvovni)	3					6	6
28	Domejko I.A. (Domejko)	1					3	6
29	Matvejchuk (stasyamate)	1					5	5
30	Gal V.G. (Metmil)	1					5	5
31	CHARNIAK P. (bitoma)	1					5	5
32	Ivan'ko E.O. (xrOucH)	1					5	5
33	Reva S.I. (s.reva)	1					4	4
34	tell M.M. (tellmemerci)	1					4	4
35	Folomkin I.N. (onevay)	2					3	4
36	Korionova P.D. (Karina_fox_777)	1					3	4
37	Oktamov N.A. (Nurdaulet99)	2					2	4
38	Altashin S.V. (burrito)	1					2	4
39	Malkin A. (Dreten)	1					2	4
40	Sidorenko (Junior_Explorer)	1					2	4
41	Severin S. (architectsnn)	1					2	4
42	Navitskas A. (Sana451)	1					3	3
43	ankudinov (arseniyank)	1					3	3
44	Borisov D.R. (Dmitry.Bo)	2					2	3
45	Rozno K.V. (Last5kTrash)	1					2	3
46	Zhopkin (Vanek_destroyer)	1					2	3
47	Yurievich (yuri.y)	1					2	2
48	Popandopulo (popandopulop)	1					2	2
49	vab (Sash3012)	1					2	2
50	Konogorskij L.E. (konogorsky Leo)	2					1	2
51	Babushki S. (gnomz)	2					1	2
52	Antonov I. (shkedin)	1					1	2
53	1 (Archontos)	1					1	2
54	Waghare A.S. (Aatharva)	1					1	2
55	Rikardov (Rikardio)	1					1	2
56	Khafizov L.Z. (Lenarkhaf)	1					1	2
57	Bocharnikova A.A. (Aleena22)	1					1	2
58	Nyanin (Ananask)	1					1	2
59	Bezuglenko (artem_enotenko)	3					1	1
60	test T.T. (yoyoja344)	2					1	1
61	Kupriyanova P.A. (@poluchku)	2					1	1
62	TTT V. (Pusich11)	2					1	1
63	Tanskiy M. (OofSpace)	1					1	1
64	Guseinov A. (Ali_G)	1					1	1
65	Druzhin A.A. (SQUV)	1					1	1
66	Stoyanov (Chihurchick876)	1					1	1
67	Vinokurova K.G. (malenkaya_bukashka)	1					1	1
68	Kazazyan (Anjelikka)	3
69	Kokareva N.E. (Tik34563)	3
70	Astrelina A.A. (kardigan)	2
71	Krashenitsa Yu. (Julia312)	2
72	Sarkis'yan G. (gennadi_s)	2
73	Kazantsev V.D. (kentiko_0)	2					ban	ban
74	Iklaspaev R.A. (Ruslan_iklas)	2
75	Qq A. (Sundow)	2
76	Krasovskij E.A. (pegoopik)	1
77	Ivazova E. (elj)	1
78	Yaniv (yanes22)	1
79	Koptel'tsev V. (selber)	1
80	Ushakov D. (Gromozeka)	1					ban	ban
81	Revin A.V. (Randry)	1
82	Shure V. (VladimirShure)	1
83	Sal'nikov A.S. (Temski)	1
84	Komarov A.N. (Shveda Saulya)	1
85	Prudaeva N.A. (Pavlova.nat.an)	1
86	Rychina (ugi-tugi)	1
87	Ivanov R. (Dagotur)	1
88	Leschenko (Verochka_21)	1
89	Shumov S.V. (coderedz)	1
90	Malets (Vuzei)	1
91	Tikhonov V. (VadimTikhonov)	1
92	Starkov D. (muha1024)	1
93	Shumkov D. (DenisAndreevich)	1
94	Qoziboyev S.F. (SaidazimQ)	1
95	Zharmatova D. (dalida)	1
96	Golovin N.A. (NYG17)	1
97	Golovach L.G. (moonn1414)	1
98	Blednyj I. (lololoshka_495)	1
99	Dem'yanovich Yu.A. (Diline)	1
100	Shinkarenko E.A. (Shinkarenko_EA)	1
101	Hudakuev (Igor_21)	1
102	sar G. (konick_gs)	1
103	Nenashev D.A. (danilka12321)	1
104	Rodin (uoloki)	1
105	Raupova N.B. (Nizukuba)	1
106	Kushnir S.A. (Wishmaster190281)	1					ban	ban
107	van L.2. (lxrvan)	1
108	Golovkin I.A. (GHOST2508)	1
109	Odegov A.I. (KovroLitik)	1
110	GG (Bazist)	1
111	R. (Wra1th)	1
112	Lezgyan (Mr.Lord)	1
113	Sad A.S. (ssaqerke)	1
114	Volkov P. (Pavel V)	1
115	Latukha P.V. (Pabblo)	1
116	Bio (bioman)	1
117	Teterin R.V. (virast)	1
118	Bakbergenova A.B. (theuser2006)	1
119	Deva N.S. (nithin0303)	1
120	Taranets A.A. (AnaStar)	1
121	Gol'dman E. (Bessmysliye)	1
122	Ischenko K.Yu. (Kpuh)	1
123	Pushkarev S. (PSV_n)	1
124	Kurakin (billir)	1
125	Kuznetsova D. (tyoyyka1)	1
126	Mori A. (Sishka)	1
127	Sayyan V.R. (Vah_666)	1
128	K A. (alexey-k)	1
129	Goryunova V. (Viktoriya Goryunova)	1
130	Khal'zova (halzovaksenia)	1
131	Savinova (Alenari66)	1
132	Filippov D.A. (shketik)	1
133	Gorijchuk E.A. (EgorQ2ZA)	1					ban	ban
134	Sal'khova A.A. (Nastya1823)	1
135	Ageeva (Ush1m1ya)	1
136	Martirosyan M. (Marrty)	1
137	Kudryavtsev V.O. (VladKudr)	1
138	Pathak A. (ananya221107)	1					ban	ban
139	Bublikov A.G. (geterozis22)	1
140	Petrov I.O. (Pucknull)	1
141	Klishin (F P)	1
142	Chukin R. (Chukin)	1
143	q I.Q. (zplrn)	1
144	Unregistered	22

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References