Today's statistics at "SQL Exercises"

June 25, 11:03 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
  • Visual simulation (painting)
  • Exercises voting (SELECT)
  • Exercises voting (DML)

Forums

  • Learning stage
  • Rating stages
  • Favorites
  • Search
  • Blogs

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	Troyan O. (TOlga21)	2			2	2
2	Ragozin D. (dewolix)	1			1	2
3	Zinovkin (Freemushka)	3					12	16
4	Pilhanchuk O. (AlexPilga)	2					9	13
5	Nurbol (AsterPol)	1					8	13
6	Bond A. (AlekBond)	1					8	11
7	Kirensky A. (Allegor)	1					7	9
8	Klychkov V.M. (floidd)	1					7	9
9	Larin A.D. (Jonfil)	1					6	7
10	Gubkovich A.I. (AlexGubkovich)	1					4	7
11	Samigullina E.S. (mukor)	1					3	6
12	Bochkarev S.V. (snake151299)	1					5	5
13	Rumyantseva E. (Ekaterina Rumyantseva)	1					5	5
14	Osin N.L. (Barekillo)	1					5	5
15	Alena (boring wozniak)	1					5	5
16	Ryzhov D.I. (Kuotis)	3					3	5
17	Ivanova G.K. (GUZAL)	1					4	4
18	Lezin (Tulpaa)	1					4	4
19	Kundrau M. (Marlo Grayhat)	1					4	4
20	Pancher (Hit.90)	3					2	4
21	Tr (Dima128921648)	1					2	4
22	sanya (sanyanya)	1					2	4
23	Varaksina E.V. (Katrina pus'ka)	2					3	3
24	Kalinin E. (kalinin_e)	1					3	3
25	Pushkarev A.E. (Perverseq)	1					3	3
26	S****s (gfkh31)	2					2	3
27	Kozlova A. (akozlova)	1					2	3
28	Goncharov (UserLand)	1					2	3
29	Sianko V. (Vadzim88)	1					2	3
30	Gorin V.A. (Altus)	2					1	3
31	Alyunov (Jean Valjean)	2					2	2
32	Bondareva A. (Bon Gia)	1					2	2
33	Marmenkov A.A. (Aleksandr92)	1					2	2
34	Kudryavtsev E. (maraero)	1					2	2
35	Ulanova A. (AIU24)	1					2	2
36	Artem (etxx1)	3					1	2
37	Smirnova E.M. (ESmirnova)	1					ban	ban
38	Koryagin I.S. (Darside)	1					1	2
39	L I. (ilyutoev)	1					1	2
40	Kisur (vik1930)	1					1	2
41	A (Ayro.lee)	1					1	2
42	v D.I. (kamaz928)	1					1	2
43	Lukovenko N.S. (sewer73)	1					1	2
44	Ismagilova (Caule)	1					1	2
45	shumov A.A. (sprinter15)	1					1	2
46	sangavarapu (kiran9533)	1					1	2
47	Gupalov A.A. (gupalov_a_a)	1					1	2
48	Yunusov M.R. (Bibaibobadvadolbaeba)	1					1	2
49	Onder (ligma)	1					1	2
50	Pilyugina M.V. (mnogavi)	1					1	2
51	Kogteva P.V. (Polina***)	1					1	2
52	Komyakov R.U. (aby_karim)	2					1	1
53	Burlakov A. (6eccMepTHble)	1					ban	ban
54	Sekhov M.I. (MaksSeh)	1					1	1
55	alekseeva (elnalekseeva627)	1					1	1
56	Denis (l1l1ll2)	1					1	1
57	Kirillov K.K. (taekonedo)	1					1	1
58	Dorofeev (Spenser1990)	2
59	Dyomov A.V. (Andrey-1985)	2
60	Alina (rassber77)	2
61	K (markant)	2
62	severin A.V. (anastasiia2712)	2
63	Sinel'tsev A.A. (Nikotinkun)	2
64	Galkin (prof76)	1
65	Koptel'tsev V. (selber)	1
66	Yashkov (SSteed)	1
67	Mikhajlova N.S. (BitT)	1
68	Sosov (Svinpauk)	1					ban	ban
69	Sigankov V.I. (vasilyvanc)	1
70	Panov I.G. (ipanov)	1
71	Filippova (verve)	1
72	Cher (LenchenCher)	1
73	Aleksandrov E.B. (EduardAlex)	1
74	Krol' (!)Shadow(!)	1
75	Chernykh V.A. (ChernykhVitaly)	1
76	Buzova A.S. (AnastasiaBuzova)	1
77	Zakharchenko D. (wilsonept)	1
78	Shimkiv S... (SergeyVS)	1
79	Rosco N. (Nomis)	1					ban	ban
80	Makhambetali D. (dauletm)	1
81	Govorukha S. (20mgg)	1
82	Khromov A.V. (hotr)	1
83	Izyumov P.S. (pablo_grap)	1
84	Patrikeev M.S. (Patik12)	1
85	? ?. (??93)	1
86	Shumilova (spring2020)	1
87	fima92 (bubo26)	1
88	Nemtin A. (Xiaolu)	1
89	Arnakov (Andrkarnak)	1					ban	ban
90	Kirillov A.G. (Seldom)	1					ban	ban
91	Kulmanova A.R. (Aikanysh)	1					ban	ban
92	MATIN (DENCHIK-PLA)	1
93	Grechina E.S. (eg5)	1
94	Bajbakov R.R. (topSqLplayer)	1
95	Magomedov A.A. (askhabinho)	1
96	Tsoy R. (r0mjke)	1
97	Zhelyshev M. (Zhelmike77)	1
98	Gusie O.O. (obvavi)	1
99	Lysenkova N.L. (NadyaNL)	1
100	Aseph J. (rukia_)	1
101	Taranov P. (pawelrnd)	1
102	Shemetov P. (PavelShemetov)	1					ban	ban
103	Ivanov (Nikodaber)	1
104	Ivanov (UB_Oleg17)	1
105	Kartushin A.A. (IprCl)	1
106	Novoselova A.D. (Ana_n)	1
107	Senatorov (Senator.)	1
108	Kal'chuk S.V. (sverkhzvukovoj sinij yozh)	1
109	Koryshko A.Yu. (Sashal-a)	1
110	Nejman (s-love)	1
111	Ivanov (Crash525)	1
112	Alimbekova (DiN`)	1
113	Vorobei (whispavi)	1
114	Gakinuliants M. (Press.any.key)	1
115	Shilovskj N.A. (Nikolas213)	1
116	Ivanov I.I. (vagr-bourne1)	1
117	Lankela A.R. (AnilLankela)	1
118	Fadikhin D.V. (6o6p)	1
119	Mantulenko M.A. (Dark M4dness)	1
120	Ivanov (ivanov.ven)	1
121	kb M.V. (Mishidze_)	1
122	Miroshnichenko O.Y. (AlenkaM 33_231989)	1
123	Ozodov (Umarjonbekxon)	1
124	Gainedenov M.S. (MGS_NASAKZ)	1
125	Pinchuk P.S. (Zloj tamozhennik)	1
126	Chernyshova O. (cherniyshow)	1
127	Svitin F.I. (PHILRAPAPAM20200)	1
128	miki K.K. (kikim)	1
129	puk P.P. (govnobomzha)	1
130	Panutsa D. (daniel_panutsa)	1
131	Mikhaylov (Macosa)	1
132	Aleksandrov (fausttt)	1
133	Levchenko O.L. (Levchenko19)	1
134	Vasiliev A.O. (VasAO)	1					ban	ban
135	Romanova A. (Aroma2000)	1
136	Ivanov (RizzoImp)	1
137	K (Evgeniy713)	1
138	Antonova E.Yu. (RLcom)	1
139	Vakul' (offSQL)	1
140	Prokhorova L.S. (PLS)	1
141	Semenchukov E.V. (Novopolotsk)	1
142	Sadovsky (sadovsky)	1
143	Kanibekuly A.K. (Akanibekuly)	1
144	Unregistered	15

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References