Today's statistics at "SQL Exercises"

December 21, 15:30 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	Antonov I.V. (Gleb61797)	2			18	25
2	Potapov V.V. (morphin)	1			15	19	ban	ban
3	Ivlev O.R. (Oleg_gotov4enko)	1			8	8
4	Novikov S.V. (@Ser589QA)	2	3	25		7
5	Kostin A. (ArgyrippusUlpius)	2			6	6
6	Badikov (Wanerock)	2			4	4
7	Varenikov D.M. (Dmitriy Varenikov)	1			1	2
8	Stremuzhevskij G.R. (BaBYsYa762)	2			1	1	ban	ban
9	Korneev I.V. (Flanec)	1			1	1
10	Ashurkov (NikAsh2024)	2					60	103
11	Kovalyov D. (Daniil_Kovalev)	2					19	40
12	Magasumov D.M. (Damir228)	1					ban	ban
13	Stukanov G.Yu. (goshkaaaa)	1					ban	ban
14	Prosvirova A.V. (Almondiii)	1					ban	ban
15	pukacki K.P. (kakashecki)	1					ban	ban
16	Manukovskij G.I. (Manukov416)	2					ban	ban
17	Romanov N.V. (Anemoculus)	1					ban	ban
18	Shulygin A.A. (AntonShuligin)	2					15	27
19	Bogorada E.P. (Egor Bogorada)	1					ban	ban
20	Makeev A.B. (tishkaSQL)	1					15	25
21	Ghdj Y.S. (YULIAGERMANY6)	1					ban	ban
22	Rekesh K.S. (krimka)	3					15	20
23	Pozdnyakov A. (AlexeyP_QA)	2					15	20
24	Maslenikov D.A. (Fe4ester)	1					14	19
25	Denisova A. (Jojobudka)	2					ban	ban
26	Rostetskaya E.E. (Eva_Rostetskaya)	1					ban	ban
27	Sirotkin (weerzy)	1					12	18
28	Maryakhin N.R. (pivandriy)	2					11	17
29	Denisov S.A. (serjantus)	1					ban	ban
30	Skoblikova V.G. (Skoblikova Veronika)	1					12	14
31	Starostina A.K. (alyostarost)	1					8	13
32	Zhidkova M.I. (zhmi1)	2					10	12
33	Axl (4k53l1t0)	1					8	12
34	Novikova K.E. (kssu_nov)	1					ban	ban
35	Gus'kova (Alissare)	1					6	12
36	Andrusenko A.P. (billyzmoon)	1					5	10
37	Galchenko S. (remarrk22)	1					ban	ban
38	Platonova (AleksPlat)	2					7	9
39	Pupachyov D. (Dm1try_P)	1					5	9
40	Pavlov T.A. (Baspok)	2					4	9
41	aymen A.A. (Aymen67816)	1					6	7
42	zubkov (gowan)	1					5	6
43	Iyer V. (vikkyram)	1					5	6
44	Makeev V.G. (empty4you)	1					5	6
45	Pechenkin T. (timurpech)	3					3	6
46	Ten V.A. (Veronika Ten)	1					3	6
47	Samotokhina E.S. (JaneGame)	1					3	6
48	Fedchenko D.A. (Danimanjam)	2					5	5
49	wowo (littlethought)	1					5	5
50	Mazurov (maxmuskat)	1					5	5
51	Penkov I. (Xopt)	2					4	5
52	D I. (IrinaD)	2					3	5
53	Khleborodov V. (VladislavKhl30)	1					3	5
54	Breege N.B. (Nick174)	1					3	5
55	Madmarova J.C. (JJJMMM)	3					4	4
56	Kuznetsov A. (tony_stark)	1					4	4
57	Doronin A.A. (Andryu)	1					3	4
58	Kasimov Kh.T. (halid149)	2					2	4
59	Sheshin N.P. (NikitaSheshin)	1					2	4
60	Naumova O. (NOlga1)	1					2	4
61	Chuldum Sh.O. (shydar)	1					2	4
62	Betekhtin V. (Vovan322)	1					2	4
63	Shumilov K.A. (wtchtwr)	1					3	3
64	Khor'kov E.A. (Eugene02)	1					3	3
65	Na A. (Alex_Br11)	1					3	3
66	Unavailable (kapalaq)	2					2	3
67	gargelwar A.C. (asmit@007)	1					2	3
68	Karakulov D. (bzglz)	1					2	3
69	ausei (aliaausei)	3					1	3
70	Zamotaev V. (vldzmtv)	2					ban	ban
71	Dzhumabaev V.R. (Dzhumbuuum666)	1					ban	ban
72	Shirokov G.V. (VadimovichGV)	1					1	3
73	Kurbanov A.M. (python_sql_train)	2					2	2
74	Tsikhan A.A. (Andrey_IT)	1					2	2
75	Sar'yan S.Kh. (SSX)	3					ban	ban
76	Chirik P.K. (dambasha)	2					1	2
77	Vorotnikov V. (Nemo70)	2					1	2
78	Kurbangaleeva U.B. (uliana111)	2					1	2
79	Konovalova I. (konovalova.i)	1					1	2
80	Mat I.P. (Zvezda141)	1					1	2
81	Koreshkov D.D. (koresh12345)	1					ban	ban
82	Lavrent'ev D.D. (lavrentevdan)	1					1	2
83	D (Newpson)	1					1	2
84	Gorodkova (Tetrogon)	1					ban	ban
85	Chebaevskikh V.V. (Valdemar228)	1					1	2
86	Petrov (lukass_1234)	2					1	1
87	Evdokushin V. (VaMiko)	2					1	1
88	Losev (Los0987)	2					1	1
89	Ivan I.I. (Jelat1)	1					1	1
90	Hmelev V.S. (Love rock)	1					1	1
91	Ivanov (maksim1306)	1					ban	ban
92	Voronin V.V. (vayvor1)	1					1	1
93	D I.D. (Il'yaDD)	1					1	1
94	Chalov (Suslek)	1					1	1
95	Nekrasov P. (Severlake)	1					1	1
96	Karvitsky T. (TSKR)	5
97	Kuleeva (zhnn)	5
98	Koptel'tsev V. (selber)	2
99	Bugraev G.R. (Garun)	2					ban	ban
100	Lobeev I. (VanoTheOne)	2
101	Safar (tamur1)	2
102	Mordvintseva A.E. (ashigray)	2
103	Savel'eva E.A. (savelevaea)	2
104	Bakhtybayeva G.M. (muratovnaag)	2
105	Arendaruk M.N. (Fundukg)	2					ban	ban
106	Lazarev T.A. (zikzak_22)	2					ban	ban
107	Anna (Anna143)	2
108	Popov A.P. (Antoxinson)	2
109	Il'yuchik P.V. (pvl6a)	2
110	Ivanova E.S. (Razumosh)	1
111	Moskvin P. (Respect)	1
112	Demidov I. (imagenesis)	1
113	gudey M.U. (arbyzik)	1
114	Kulemzin N.E. (Bulochka_c_izumom)	1
115	Zinouyeu A. (Not_At_All)	1
116	Kudryashov (sql-man-1901)	1
117	Yakovlev (gipakrot)	1
118	Burdavitsyn A.V. (avburdavicin)	1
119	Chuprinova A. (BlairFire)	1
120	Kokonov (lezviee)	1
121	Tereshin (1omni1)	1
122	Bukina E. (elenabukina)	1
123	Baburin R. (Alexandrovich007)	1
124	Scherbakov (Evgenij Sch)	1
125	Ivanov A. (Hartman44)	1
126	Li K. (GetHashCode)	1
127	Golubitsky N.G. (MeCola)	1
128	Livanov I.R. (daguker1)	1					ban	ban
129	Evdokimov (infidotte)	1
130	Romanova E. (romanova-e)	1
131	AI (ML777)	1					ban	ban
132	Kakurin N.I. (nkakurin)	1
133	Satyshev I.N. (Ilyassql)	1
134	Ferrov (Sedutor)	1
135	Golubev (Crakozyabra)	1
136	Chukchin D.N. (Herculean)	1
137	Khokhlov A.V. (rald6839)	1
138	Davydov O. (Oleg_Davidoff)	1
139	Khlapov A.B. (AlekseyKX1)	1
140	Dement'ev O.V. (tolko_ne_men9I)	1
141	Timokhin I. (ilyahty)	1
142	Kasimov R.M. (Kas001)	1
143	Plakhotnyuk A.O. (Plaha54)	1
144	Artem Z.D. (cracklord)	1
145	Krylov A.E. (kryloff)	1
146	sdsa (selcchik)	1
147	Darina (Darlorean)	1					ban	ban
148	Molotkova O.A. (Olga Molotkova)	1
149	Nagoryanskaya A.S. (asnag)	1
150	Jcvd6 (Jcvd26)	1					ban	ban
151	Sajfiev D.U. (dum45)	1					ban	ban
152	Ryzhov I.V. (bay_face)	1					ban	ban
153	Petrushin N.V. (PetrNki)	1
154	Bol'shakova (rounny)	1
155	Ivanov (userTest1)	1
156	Tsvetkov D.D. (daniil2005)	1
157	Letkin M. (Saddam Hussein from SP)	1
158	dfsdf D.D. (dfsdf1)	1
159	M I. (ilyok)	1
160	Stroganov (mambutomali)	1					ban	ban
161	Matveev D.V. (denisczx)	1
162	Savvin (Tim1897)	1
163	Mitrofanova V.M. (iiamtli)	1
164	Tarasov (alberto_sql_machine)	1
165	Rozhdestvenskij S.V. (svyat_rozhd)	1
166	Il'inskaya E.V. (lizavetta)	1
167	Maslov (pengwi)	1
168	Popov A. (tomcatp)	1
169	Khramov A.M. (alan89711)	1
170	Kuznetsova (yanmmm)	1
171	Nazirov R.T. (xerdis1337)	1
172	Kuz'mina K.S. (Karinka1611)	1					ban	ban
173	Lunyushkina K.N. (Ksenialun)	1					ban	ban
174	Atroshenko A.A. (AtrAlAnd)	1					ban	ban
175	mishastaya S.M. (sofya_888)	1
176	Capello T. (TimCapello)	1
177	Uvarov A.I. (antoxa-uvarov)	1
178	Mazur (Mazurkevich)	1
179	Fedotova Yu.I. (bublik1)	1
180	dada (yellowie)	1
181	Odegov A.I. (KovroLitik)	1
182	Minkov A. (AMinkov)	1
183	Kuksin Z.V. (MilashkinSss)	1
184	Guchiev M.S. (guchievms)	1
185	Fart D.A. (M134)	1
186	Namazov M.A. (AsLimbo)	1
187	R. (Wra1th)	1
188	Elkin (Arkady93)	1					ban	ban
189	Rostovskaya V.A. (RValera)	1
190	Khakhakha I. (ME_FuN)	1
191	Spravtsova E.M. (eliza.s)	1
192	Zakharova P.R. (zakharovalina)	1
193	Pinigin (rowman1)	1
194	Safarli R.G. (Tarragoncn)	1
195	Olegich O.O. (mangecer)	1
196	Le K.T. (LKE7522)	1
197	EVcFDycyAfa V.N. (DsTcavYpD)	1
198	Ivanov I.I. (Ivan Ivanych ShU)	1
199	Kyasheva (jcodin)	1
200	Kuz'min O.E. (Yarob)	1
201	Ivanov (alekst_59)	1
202	Unregistered	28

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References