Today's statistics at "SQL Exercises"

March 05, 11:58 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	Nikolaev S.S. (Swat67)	1			17	21	ban	ban
2	Vasev D. (Zetalya)	1			5	7
3	Safronov P.A. (Paulus73)	1	1	71		3
4	fioletovaya (fioletovaya2)	2			1	3
5	Abramova Yu. (GalaxyTears)	1			1	3
6	Skorlyakov V. (3agu6ok)	1			3	3
7	Korchagin V.M. (Valery_Korchagin)	1			1	1
8	Zhunusov S.Z. (Sungatt)	1					ban	ban
9	Orynbek M.E. (Morzhik)	1					ban	ban
10	Spabekov M.S. (Meirbek)	1					14	27
11	Yagofarov (mateni)	1					15	26
12	Podporin A.A. (hatiksu)	1					15	26
13	Imankhan T.T. (Temirlan Imankhan)	1					ban	ban
14	Tekesbaj S.S. (sandugashhh)	1					ban	ban
15	Usserbayev A.A. (Alish711)	1					13	26
16	fdsfsdfdsfd (fjksodjfosidjiro)	1					ban	ban
17	Medetbek M.K. (Kanzh)	1					ban	ban
18	Mirov (mirkovlad)	1					14	20
19	Zhakanov A. (AlmasZh)	2					11	19
20	Soskin M. (maxsosik)	2					10	17
21	Agafonov (Ivan Agafonov)	1					15	15
22	yyy A. (ArsenPersen2)	2					9	14
23	p (lushhh)	1					10	13
24	Oks (kir_oxx)	1					9	12
25	Vasechko K.Ya. (Memnik)	1					8	11
26	Jokhann R. (Duke-74)	2					6	11
27	Ermoshin (Mikhail_Ermoshin)	1					ban	ban
28	Lobanova M.L. (lobanovamariya)	1					9	10
29	R (Arina.8301)	2					ban	ban
30	URL (UnRadicalIssue)	2					7	10
31	Davlatov I.M. (Leiurus)	2					6	9
32	Purbuev B.Z. (PurbuevBulat)	1					5	9
33	anonim A.A. (anonim12342)	1					5	9
34	Agafonov I.I. (Ivan.Agafonov)	3					ban	ban
35	L R. (pdal21)	1					ban	ban
36	Petrenko N. (Natalia Petrenko)	1					5	8
37	Bhure L.B. (Lokii)	3					4	8
38	Proks (DariaProks)	1					5	7
39	Khalym D.N. (daynkhn)	1					ban	ban
40	Toporova E. (vchkashka)	1					6	6
41	Fomichev M. (thankyoucvp_vol1)	2					5	6
42	Vorob'yov (fantas)	1					5	6
43	discopony3 (discopony)	1					4	6
44	Zhuman A.S. (Ayano 001)	1					ban	ban
45	Chumin M. (MaximusPrime)	1					3	6
46	Sovetkina E. (esovetkina_neo)	1					5	5
47	Yurchenko (key84)	1					5	5
48	Nikishin N.V. (Nikolasss)	1					4	5
49	Kosseit A. (Adiya Kosseit)	1					ban	ban
50	Akhmetshin A.F. (A.SkyLink)	1					3	5
51	Pologov (pologg)	2					4	4
52	Krapivina L. (epywabi)	1					4	4
53	Nikonov P.M. (ForestJump)	1					4	4
54	D V. (DlytexKtoPoidetSledom)	1					4	4
55	Mironov A. (tr302)	1					3	4
56	Altynbaev T.A. (14KARAT-prog)	1					3	4
57	Kanat R.E. (Asylym)	1					ban	ban
58	Nov I. (indels)	1					ban	ban
59	Shvetsov D.Sh. (DanechekSw)	2					3	3
60	Shamshadynova A.M. (ANASTASHEN)	1					3	3
61	Gorokhova A.G. (aina_gr)	2					2	3
62	Pakkanen (Antti_Pakkanen)	1					2	3
63	P N.V. (Kolianio)	1					ban	ban
64	dollycons (con99009)	1					2	3
65	Kondrashova D.V. (Dashhh13)	3					2	2
66	P. M. (Rinshikito)	1					2	2
67	Cheprasov A.A. (andruwa_01)	1					2	2
68	Makhortov V.R. (asianmgdc)	1					2	2
69	Auezova (Soul66)	1					2	2
70	Zhilin N. (Nikita Zhilin)	1					2	2
71	Villemson T.A. (Tantus2704)	1					2	2
72	Terekhov (yasha2)	2					ban	ban
73	Deev A. (fhh)	2					1	2
74	Vajtsekhovskij (Slava222)	1					1	2
75	Nikolaev A.N. (n1kolaevs)	1					1	2
76	Malakhov (dimmal)	1					ban	ban
77	Tashmatova (kuzmich14)	1					1	2
78	skumwo (skumwo)	1					ban	ban
79	Tleugabylov D.N. (diasdianadias2005)	1					ban	ban
80	Bostandyk A.B. (botacore)	1					ban	ban
81	Ersinbaev S.E. (sunkarr)	1					1	2
82	Kadyrbek M.D. (Madiks)	1					1	2
83	Ayurov S.V. (Sanzhay)	1					1	2
84	Martynenko A.V. (Laditops)	1					1	2
85	K A.A. (godota1)	1					1	2
86	Ignat'eva (vikalya)	1					1	2
87	K D.I. (LK_)	2					1	1
88	Tolstov (-vo-)	1					1	1
89	Reuben D. (Rbn977)	1					1	1
90	Khasanov R. (POMAHbl4_87)	1					1	1
91	Khannanov A.I. (Almazejka)	1					1	1
92	moon (__moon__)	1					1	1
93	Tsytsykova A.D. (fhvhdchi)	1					1	1
94	Khamdamova (aika888)	1					1	1
95	Li (Mynnn)	1					1	1
96	Kondrakhina D.S. (Tomago_Angel)	1					1	1
97	Ais (SQLPractica)	1					1	1
98	Repchenko V.S. (_vitalik_)	1					1	1
99	zhumazhan A.Zh. (akiiii)	4					ban	ban
100	Armanuly (R_E_V)	4
101	Polyakov V.M. (rock_4)	2
102	Mazanov (Cepnoj)	2
103	Safaralieva U.N. (queenss)	2
104	Kamalidin N. (Nurzhigit_Kamalidin)	2
105	nk A.K. (qmax090)	2
106	Dauletbek A.R. (Akzholldk)	2
107	Nurken A. (alina34)	2					ban	ban
108	Persen A. (ArsenPersen)	2
109	Dettsel' T.N. (batanja0808)	2
110	Karmanova A. (Asteria Moony)	2
111	Nechaeva O.A. (Nechaeva Olga)	1
112	Krasovskij E.A. (pegoopik)	1
113	Koptel'tsev V. (selber)	1
114	Yurchenko K. (kastus)	1
115	K A.Yu. (Mad Harper)	1
116	Mikebayeva E. (miki$vira)	1
117	Vojtekhovich E.A. (Stigmat)	1
118	fghgfhgh F.F. (otaky111)	1					ban	ban
119	Skorbatyuk R.Ya. (rost.slv)	1
120	Monin D.I. (Denis Monin)	1
121	Komarov A.N. (Shveda Saulya)	1
122	Epishin D.A. (epishinda)	1
123	Kamaev E.N. (Hans Robinson)	1
124	Rakhimberdinova S.R. (SaniyaR)	1
125	Rychina (ugi-tugi)	1
126	Alekseev A.A. (ShurikAlekseev)	1
127	Agapitov V.Yu. (qwerty7ZIP)	1
128	Bogorad M.D. (maksimBd1)	1					ban	ban
129	Sagyntay (Orynkul)	1
130	S (An_Sb)	1
131	Mischenko (AlexMoran)	1
132	Captain U.Z. (CaptainUkraine)	1
133	Gorshkova (Deverf)	1
134	Panicheva V.D. (_Vika_)	1
135	Rinatova M.A. (Madon)	1
136	Kryuchkov S.N. (Sergej 5555)	1
137	Surashev A. (surar)	1					ban	ban
138	Zaichenko M.E. (Makson4ikppcp)	1
139	Nikolaevskij N.N. (n1k0lay-3n)	1
140	Romanov V.A. (vrinc)	1
141	Komarov A.K. (Arkolotu)	1
142	Milly (blurry01)	1					ban	ban
143	Aniskovich E. (evgeniyaniskovich)	1
144	P I.*. (IrinaPetr)	1
145	Sukhanov I.A. (joker_0222)	1					ban	ban
146	Matvej M.B. (kuhvbnffdfsdsd)	1
147	Federico (Federico16)	1
148	Azat (sal5)	1
149	R. (Wra1th)	1
150	. .... (reyq)	1
151	Agafonov A. (Alexeische)	1					ban	ban
152	Streletskij (Cheburator300056v)	1
153	Tumenko N.N. (tysyaa)	1
154	Korobinskaya (1110Viktoriya)	1
155	ASI (asi_sql)	1
156	Lysykh V.K. (Usilitel')	1
157	Kupchikova I.D. (Nowina)	1
158	Ibragimov (Rinatr)	1
159	Ustyuzhanin L.V. (Leoniiid7)	1
160	Grebe P. (p1kers)	1
161	Tkacheva T. (tak_a_cho)	1
162	Sairanbek D. . (sairanbek_darkhan)	1
163	Arzumanova M.V. (marasql13)	1
164	Orazalina A. (xexo)	1
165	Kasimova E.V. (KatyaKasimova11)	1
166	Levdansky V.Y. (VLev)	1
167	Afanevich E. (Ketra)	1
168	Bozhenko (R2351)	1
169	kek (avTq)	1
170	Pitcil (fallsin)	1					ban	ban
171	Sebastian A. (Anandhu)	1
172	pardhi G.L. (@Gayu)	1
173	Patle S.S. (zynx)	1
174	Burde L.S. (Lokeshniburde)	1					ban	ban
175	Ivanova E.P. (Evgenia90)	1
176	Savvateev (YanarCL)	1
177	Karikh V.V. (vadika48)	1
178	Baymukhambet A. (_koyan)	1
179	Beimbet A. (Assem-800)	1
180	Zeinolla E.B. (elzh22n)	1
181	Talgat A.B. (Altux)	1					ban	ban
182	Alikhan A. (Alikhan77)	1					ban	ban
183	Goldobin E.G. (prm259)	1
184	Edil D. (domekano)	1
185	Zhaparkhan E. (Er2205)	1					ban	ban
186	Kadyskan S.T. (Shake888)	1
187	Abdigali N.A. (Abdigali_Nurmuhamed)	1
188	empty D. (dias973)	1					ban	ban
189	Amangeldiuly A. (CDF)	1					ban	ban
190	Golovleva M. (ov0schtsch)	1
191	Ovdienko V.A. (Reshalaporeshala)	1
192	Pyatnov (pan555)	1
193	Saldarbek M. (Madiyar005)	1
194	Safonov A.A. (toni.85)	1
195	P (dariaschreider)	1
196	Prokof'ev A.O. (Artem123414)	1
197	Antonov S.E. (AnSoE)	1
198	Zambalaeva M.V. (Maria642)	1
199	Kuzhuget S. (sailana)	1
200	Ochirova V.B. (vlria)	1
201	FoxIT (FoxIT)	1
202	Medvedev K.A. (kirill-medvedev)	1
203	Matveev A.A. (matinhno)	1
204	Golubnichij D.Yu. (DmitriyGolubnichiy)	1
205	Frankevich A.I. (AnastasiaFrank)	1
206	Novikov N.D. (nikitosikss)	1
207	Tsydypov Zh.G. (Izanagi)	1
208	Pil'chinov I. (Sengoku)	1
209	Belek M.A. (Belek17)	1
210	nurmolda M. (medeut)	1
211	Lolorew J. (phenvexx)	1
212	Ovchinnikova I.A. (ira off)	1
213	Zhiltsov V. (VZZvv)	1
214	ivanov (Sveta1123)	1
215	Ivanov (AlexK88)	1
216	Afonina E.A. (Suzemaa)	1
217	Petukhov M. (mpetukhov)	1
218	Burenkov (br1mx)	1
219	Kholmogorov S. (tyno_poctyx)	1
220	Lover (McLovergfdhf)	1
221	Uzhakhova (valllllles)	1
222	Lushnikova V. (LeraLushnikova)	1
223	shavalov F.L. (fv.shavalov)	1
224	Kirillov M. (eclip_se)	1
225	Saldaev S.A. (Holla holala)	1
226	Yakovleva T.V. (Tatyana_Yakovleva)	1
227	Polischuk I. (Ira??)	1
228	ver (banshee007)	1
229	di (dencska)	1
230	Ivanov D. (derniska)	1
231	Unregistered	19

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References