Today's statistics at "SQL Exercises"

May 02, 17:18 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	Kolesnikov S.O. (bulbasaurus)	1	4	36		10
2	Kuritsyn V.N. (ValNick)	1			2	7
3	Gorbunov M.S. (gms)	1	1	32		3
4	P I.*. (IrinaPetr)	1	1	65		3
5	M (DanilM2304)	3	1	67		2
6	DO R.M. (danchikPi)	1	1	24		2
7	Vdovin S. (Rujan)	3			1	2
8	Ivanov D.K. (DK-Ivanov)	1			1	1	14	20
9	Tsoy A.A. (squezy)	1					15	28
10	Glukhachyov (Abiba)	2					15	27
11	Kamaldzhanov A.A. (Tein02032010)	1					15	27
12	Radzhabov R.S. (Remma)	2					15	24
13	Kamaldzhanov R.A. (rasikoo)	1					15	24
14	Kolobok V.T. (Kaharman)	2					15	23
15	Nabidolla D.E. (Dariyanabid)	3					15	22
16	Nizamedinov A.Kh. (adylzhan)	2					15	22
17	Dubovitskaya A.D. (Alina12)	1					15	22
18	Kaban H. (Kaban123)	1					15	21
19	Makarov A.I. (arteleon)	1					15	20
20	Nikonov S.A. (serg0123456789)	1					15	20
21	Tsoy A.A. (squezy13)	2					11	20
22	Ponomarev A.A. (Sanches123)	2					10	20
23	Taubaev B.M. (Beka8778)	1					10	20
24	Biba N.V. (gipnogaba)	3					15	18
25	Ust'yanova (Sharki4)	1					12	17
26	zkey (zkey101)	1					13	16
27	Aver'yanova V. (aseinore)	1					10	15
28	Akhmetova V. (Nero54)	1					10	14
29	Shelest V.V. (ViolettaShelest)	1					9	13
30	Vostrikova Z.K. (zlvstr)	2					11	12
31	Pogorel'tsev D.P. (PashaDmitrii)	1					9	12
32	yesbossyn D. (daniyar06)	2					7	12
33	Temirkhan Y.Q. (d4rise)	1					6	12
34	Zh A. (john_nash)	1					6	12
35	Verma S. (Shorrya)	1					9	11
36	Lutskina E.V. (Lina-eva)	2					8	11
37	Azizov A. (TheGritSage)	2					6	10
38	Kochanov V. (Kochanov.vi)	3					5	9
39	Bezhnar A.I. (artikius)	1					5	9
40	Akimtsev M.A. (AkimtsevMaks)	1					7	8
41	Kadyrov (FaNd)	1					5	8
42	andreybaranovstage@gmail. (andreybaranovstage@gmail.)	1					4	8
43	Gl I.A. (czyiii)	1					6	7
44	Neftyanikov A. (neftyanik)	1					6	7
45	Malikov A. (lylik)	2					5	7
46	kfafka K.T. (Dan_25151)	1					4	7
47	Happy S. (SmileDesu)	1					3	6
48	Kulmanova (Aikesha)	3					5	5
49	Lipin V.S. (vacok5)	2					5	5
50	Taraskin A.P. (taranttt)	2					5	5
51	Arakelyan T.V. (tatevikkkkkkkk)	2					5	5
52	- -.-. (DETH11111)	2					5	5
53	Pologov M.A. (Pologov)	1					5	5
54	Tolmachev R.S. (Ruslan Sergeevich)	1					5	5
55	Mel'nikov I.O. (batman154)	1					5	5
56	Alen N.G. (Nurgul')	1					4	5
57	Makarova M.S. (mfirs)	1					3	5
58	dufivara (d.ufivara)	1					ban	ban
59	awdwdadw (alpakkaa)	2					3	4
60	Borichevskij A. (alexey13__2)	3					2	4
61	Stepanov (LexFrom)	1					2	4
62	Smirnov E. (yeegaure)	1					2	4
63	bauer (tron350)	1					2	4
64	Tajmenov M.E. (MaceS)	1					3	3
65	Loseva A.S. (exqulix)	1					3	3
66	Ivanov I.I. (sql_svinger_double_finger)	1					2	3
67	Orlov A. (esterio)	3					2	2
68	Machulka T.A. (govno999)	4					1	2
69	Yagovkin I.A. (Mvsia)	1					1	2
70	Ismagilov D.I. (IsmagDam)	1					1	2
71	Novikova A.A. (nastya_yupi)	1					1	2
72	filippinyuk O.L. (22PM)	1					1	2
73	Salikov A. (fc_am1r)	1					1	2
74	Barakov A. (BarakovAsyl)	1					1	2
75	El'tsova T.E. (elt.tana)	1					1	2
76	Kachkov (umy2ut)	1					1	2
77	Zavidov A.E. (Mamba555)	2					1	1
78	Begalieva Z.A. (Zarina0509)	1					1	1
79	Shagalov O.L. (TTC)	1					1	1
80	Kot N. (kot9cash)	1					1	1
81	Kosimov B. (Basara)	1					1	1
82	Sarkis'yan G. (gennadi_s)	3
83	Kurochkin P.A. (qwrqwr)	2
84	Danyushin M. (GonLimon)	2
85	Gusev A.O. (NowOrNever)	2
86	Sliusar S.S. (Astorath)	2
87	Ivanov (userTest1)	2
88	Odegov A.I. (KovroLitik)	2
89	Kon'kov G. (garrykonkov)	2
90	Vysotskij (Bulochka_Bulochka)	2
91	Zhakenova A.K. (zhakenoovva)	2					ban	ban
92	Revyakin (Revlani)	1
93	Martynov A. (Ryncol)	1
94	Koptel'tsev V. (selber)	1
95	Peregudov E.A. (KLAUS51)	1
96	Vinogradova S.M. (Tigra1)	1
97	Petrov A.V. (AVPetrov)	1					ban	ban
98	Petrov N.V. (Nick21)	1
99	Volyk (Netsky199723)	1
100	Konovalov A. (krapa666)	1
101	Efimenko S.A. (SA-Efim)	1
102	Kuznetsov K.G. (kestr)	1
103	Jh A.A. (mafficc)	1
104	Borschovetskij I.N. (Igor2.0)	1
105	Buerina (nekrevet)	1
106	Mus G.M. (GMMM)	1
107	Kalujsky (yaponchik777)	1
108	Brazhnikova L.A. (L47)	1
109	Shikov V. (Viktor_TG)	1
110	Serova (Svetla802)	1
111	Bolgova (IuliiaB)	1
112	Strukov (StrukovSA)	1
113	Nigmanova M. (EvilWerner)	1
114	Protopopov M. (promikhail)	1
115	andrei (rrau)	1
116	a A.A. (ksdofkbpk)	1
117	Kushnir S.A. (Wishmaster190281)	1					ban	ban
118	Maksimova (corr8ct)	1
119	Mir T. (TimMir)	1
120	Alex A.A. (alexalex68t)	1					ban	ban
121	Kuklanov Z.D. (Lunarick)	1
122	Khanzhin M.S. (Maksimilian9080)	1					ban	ban
123	R. (Wra1th)	1
124	Korolev R.V. (zouker)	1
125	Komov S.M. (Komov S. M.)	1
126	Lysykh V.K. (Usilitel')	1
127	Prokofev (rezect)	1
128	Narembekov T. (fountaineww)	1
129	le S.E. (sedrus)	1
130	mawdmawmdaw K.K. (Marxovich)	1
131	Kudaibergenov I. (Ilyassickk)	1
132	Bazarzhapova N.A. (e39228)	1
133	Vasiljev I. (vasiljev_ilya)	1
134	seito R. (ryota)	1
135	Frolov I.V. (Zevs pitbul')	1
136	Nikitchenko D.E. (DashaNik904)	1
137	K D.D. (noemiq1)	1
138	Utkin S.A. (Aethel)	1
139	Durnev (lumen28)	1
140	Hutchinson L. (Luther_Hutchinson)	1
141	Serik T. (_Faust_)	1					ban	ban
142	Ramazanov D. (Didarbek12)	1
143	Voloshina T. (Arial_Moon)	1
144	Fazliev R.S. (Rusla-1984)	1
145	Popil R.A. (popilroman)	1
146	Yakovleva T.O. (mala zeleni garoschkof')	1
147	Bocharova V.E. (Malvisa)	1
148	Gusmanov A. (Asg99)	1
149	Samojlov E.P. (test_user_SDET)	1
150	Dzhundubaev (AveRen)	1					ban	ban
151	Kyroto1 A. (Kyroto)	1
152	Fedorov P. (AlbertSpangler)	1
153	Romanov (JerseyDevil)	1
154	Semin A. (Lui)	1					ban	ban
155	Petrova G.I. (Galina_psql)	1
156	Dzhundubaev A. (averen11)	1					ban	ban
157	Dzhundubaev A. (averen121212)	1					ban	ban
158	Ab V. (vixxlenaa)	1
159	Kopylov N. (ddddx)	1
160	Rosso S.I. (KittyCat20)	1
161	Il'in I.N. (Igor_Il)	1
162	Rivian (geralt_the_witcher)	1
163	1 2.3. (Heldweller)	1
164	Unregistered	23

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References