Today's statistics at "SQL Exercises"

May 01, 20:53 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	Gapanovich P.A. (drestar1)	1			10	14
2	Shmelkova V.-. (verabourdn2612)	2			9	9	8	9
3	M (DanilM2304)	4	2	66		6
4	Kolesnikov S.O. (bulbasaurus)	1	1	32		3
5	pl P.S. (sqleaener12)	2			3	3
6	O (janeoosql)	2	1	9		2
7	Karasyova N.V. (vlksm)	1	1	24		2
8	Lamot'ko A.A. (CherryBerry_8)	1					15	26
9	Kamaldzhanov R.A. (rasikoo)	1					15	26
10	Dzhundubaev (AveRen)	1					14	24
11	Zhakenova A.K. (zhakenoovva)	1					ban	ban
12	Makarova M.S. (mfirs)	2					12	21
13	Dzhundubaev A. (averen11)	1					ban	ban
14	Taubaev B.M. (Beka8778)	1					13	16
15	Nikonov S.A. (serg0123456789)	1					13	16
16	Sharbatov Y. (YusifSH)	2					10	14
17	Dzhundubaev A. (averen121212)	1					ban	ban
18	Bezhnar A.I. (artikius)	1					8	13
19	andreybaranovstage@gmail. (andreybaranovstage@gmail.)	1					8	11
20	Akyn M. (murakyn)	1					8	11
21	Alejnikov D.N. (gomelchanin123)	1					7	11
22	Begalieva Z.A. (Zarina0509)	2					7	9
23	Aldabergenov R. (ruslan_msu)	2					7	9
24	Akimtsev M.A. (AkimtsevMaks)	1					7	9
25	Farvaev I.F. (ilmirf)	2					6	9
26	Schegol' Yu. (JulyaSchegol)	1					6	9
27	Zhirnova A.A. (Alisik)	1					6	9
28	Papiashvili G. (George_Kepler)	1					7	8
29	Sokolova O.V. (Ol'ga2026)	2					5	8
30	Xp (xpwqx)	1					5	8
31	dufivara (d.ufivara)	1					ban	ban
32	Akmeev D.A. (sssss1231123)	2					6	7
33	Bezb N.S. (Stoun)	1					6	7
34	Mishra (Ginger457)	1					5	7
35	babka (rosolka)	1					4	7
36	Turkovsky (KonKhiDot)	2					4	6
37	Berezovskaya D.V. (dashaeverafter)	1					4	6
38	grud G.G. (grud)	1					4	6
39	Kyroto1 A. (Kyroto)	1					5	5
40	Gadzhiev K.Sh. (LiarFMR)	1					5	5
41	Akhmetova V. (Nero54)	2					4	5
42	Secret Key (Secret Key)	1					4	5
43	El'tsova T.E. (elt.tana)	1					4	5
44	Vyacheslav (viking7757)	1					4	5
45	Samoylenko (Homer2)	1					3	5
46	Sagalakov V.M. (Va_log)	1					3	5
47	Gribachev (Nikitylllka)	1					3	5
48	Rasstegaev I.A. (Rasstegaev)	1					3	5
49	Vishnevskaya A.G. (Anastasiya8989)	1					4	4
50	Val'kovskaya O.A. (valkosha)	1					3	4
51	Kortukova (TiredPufferFish)	2					2	4
52	Vasil'ev V.S. (Virt-F)	1					2	4
53	Umarov I.M. (Helloworld___)	1					3	3
54	Zavidov A.E. (Mamba555)	1					3	3
55	Fedorov P. (AlbertSpangler)	2					2	3
56	squirrel (squir_el)	2					2	3
57	Gurashkin K. (Crocko)	1					2	2
58	Voronkov (VadikVoron)	1					2	2
59	Strukov (StrukovSA)	3					1	2
60	Tolmachev R.S. (Ruslan Sergeevich)	2					1	2
61	Finogeev M. (MaxFinog)	1					1	2
62	Narembekov T. (fountaineww)	1					1	2
63	Sajfetdinov A. (psql_magic)	1					1	2
64	Makeev M.V. (Zettyr)	1					1	2
65	Bocharova V.E. (Malvisa)	1					1	2
66	Romanov (JerseyDevil)	1					1	2
67	Nurbosyn E.A. (hvhgbh)	1					1	1
68	Vasin A.A. (Savvie12)	1					1	1
69	Kornienko (Ivan Kornienko)	1					1	1
70	Mad'yarov (Ndrix)	1					ban	ban
71	Bochkova (AnyaBo)	1					1	1
72	Ab V. (vixxlenaa)	1					1	1
73	Bocharova (vrhaena)	1					1	1
74	Gusev A.O. (NowOrNever)	5
75	Vdovin S. (Rujan)	4
76	le S.E. (sedrus)	4
77	Krasovskij E.A. (pegoopik)	3
78	Koptel'tsev V. (selber)	3
79	O (RaisaO)	3
80	a A.A. (Artur1q)	3
81	Sarkis'yan G. (gennadi_s)	3
82	K (Levanlomg)	3
83	Shamraev (limpopopo)	2
84	Danyushin M. (GonLimon)	2
85	Afanas'ev I.S. (yamakassi)	2
86	Kuklanov Z.D. (Lunarick)	2
87	Odegov A.I. (KovroLitik)	2
88	tagan (Aktobekaz)	2
89	Ivanova E. (neuch34)	2
90	Smirnov E. (yeegaure)	2
91	Ospanova (amazing_2007)	2
92	Nemashkalova (twinkle5016)	2
93	Kon'kov G. (garrykonkov)	2
94	Biv (BIV99)	2
95	Shvajko A.V. (Anastasia Shwayko)	2
96	Yagafarov I.I. (ktogafarov22)	2
97	Larsanova D.R. (diankaaaaa)	2
98	Shibaev (saah)	1
99	parus (paruss)	1
100	Vinogradova S.M. (Tigra1)	1
101	Shatunov (Tapac174)	1
102	Sergachev A. (SDAndrew)	1
103	Pelogeevskij S.I. (pelogeevsky)	1
104	Petrila Yu.A. (rash90)	1
105	Usmanov M. (Chuchel)	1
106	Zrodnikov A. (Alexzor)	1
107	Kuritsyn V.N. (ValNick)	1
108	Kamushkin (mr. Kamushkin)	1
109	Kosareva (Olga_Kosareva)	1
110	qwe R.Y. (TheWrongOne992)	1					ban	ban
111	Shagalov O.L. (TTC)	1
112	Ivin E. (egor_1998)	1
113	azunai (Azun4i)	1
114	Bu A.M. (GU-GU-GU)	1
115	Snyatkov M.V. (Snyus)	1
116	Puzin I.S. (BarbosIlya)	1
117	Platonov A. (Golden-Times)	1
118	Domoratskij S.V. (Jovanni_D)	1
119	Iskhakov T. (TimurIskhakov)	1
120	Vasilyov A.A. (quiry)	1
121	Yagovkin I.A. (Mvsia)	1
122	Didigov T. (lelmooo)	1
123	Mir T. (TimMir)	1
124	Almazova N. (nurkyial)	1
125	Fejk S. (E.FAKE)	1
126	Kaban H. (Kaban123)	1
127	Z (irzm)	1
128	Ismagilov D.I. (IsmagDam)	1
129	Grekov I.I. (rebol1)	1
130	P I.*. (IrinaPetr)	1
131	Petrov (strelok_123)	1
132	Khanzhin M.S. (Maksimilian9080)	1					ban	ban
133	Shushin D. (SQL-OG)	1
134	R. (Wra1th)	1
135	Stepanov (LexFrom)	1
136	black N. (neoblackyeah)	1
137	Kataev A.A. (Andrey3123)	1					ban	ban
138	bauer (tron350)	1
139	Alek (litvin001)	1
140	Skibin V.V. (SQL_vvs)	1
141	Lysykh V.K. (Usilitel')	1
142	Chikov (Bluzzzz)	1
143	Ugreninov A.S. (solonxd)	1
144	Timofeev A.T. (BegginerTex)	1
145	Gadzhikhanov (Khadymmm)	1
146	Lagunov M.T. (Opengate48)	1
147	Zinov'ev M.A. (W1nt3ryyy)	1
148	Mak N. (NickArt1)	1
149	Bulacheva S. (ji_hee)	1
150	Tserenkeeva I. (sssrekan)	1
151	Vasiljev I. (vasiljev_ilya)	1
152	Nikitchenko D.E. (DashaNik904)	1
153	Shaikhov (Skollhild)	1
154	Aurelius (gineus)	1
155	Nichita T. (tsurkan)	1
156	Durnev (lumen28)	1
157	Hutchinson L. (Luther_Hutchinson)	1
158	Ivanova (ansss)	1
159	G T.T. (ViperXXX)	1
160	Voinkova O. (Ol~)	1
161	Erykalin (IJAKIBS)	1					ban	ban
162	Lyamtseva (lumtses)	1
163	Milyaeva K. (MadamSengo)	1
164	Vanyan G. (Gohar_3)	1
165	Pronin (Vitusyara)	1
166	Ruchkin S.S. (ru4i)	1
167	Kudr (Kudr_el)	1
168	Lutskina E.V. (Lina-eva)	1
169	Kolomenskij G.S. (Naviz)	1
170	Kirilov T. (Timichio)	1
171	Lebedev E.A. (hardbit)	1
172	Spermoglotov S.S. (spermoglot)	1
173	Popova E.O. (jenyaaa13)	1
174	Unregistered	24

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References