Today's statistics at "SQL Exercises"

February 17, 10:32 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	Kad V.Y. (s108)	1	5	12		7
2	fioletovaya (fioletovaya2)	1	1	103		1
3	P I.*. (IrinaPetr)	1	1	48		1
4	Kazagasheva V.M. (rrosemary)	1					15	27
5	Slepokurova V. (VioIeta)	1					15	26
6	Volkov A.V. (andrew VD2-23)	1					15	26
7	Novikov A.A. (isip_a.a.novikov@mpt.ru)	1					ban	ban
8	39566 (395666)	1					15	25
9	Mizam A. (AdakMUIT)	3					ban	ban
10	Nurdaulet (Nurdaulettt)	2					15	24
11	Ajimuratov A.A. (Aliby39219)	2					15	24
12	qwert A.B. (Suffer_lxst)	1					15	24
13	Serkali D.E. (Illios_jul)	1					15	24
14	Manatbaev N. (Bokug1m)	1					15	24
15	Marushkina A. (39570)	1					15	24
16	Kanabek E.M. (elducki)	1					15	24
17	Tokabai B.A. (AlhentB)	3					ban	ban
18	Abdumanap S.N. (sagii)	1					14	22
19	Zhabykbai Z. (zxzhask)	1					14	21
20	Fajzulla Zh. (Zhangirkhan)	1					11	16
21	Evtushenko I.D. (mrjevt17)	3					12	15
22	R (Arina.8301)	2					9	15
23	Kozybay N.N. (MojiOcean)	1					9	12
24	Tararin A.V. (Demo4)	1					8	11
25	Khakimzhanov F. (Fara040)	1					ban	ban
26	Akhmetov K.R. (harosh)	2					7	9
27	Medvedev S.A. (Noso4ek_)	2					7	9
28	Nazarov D. (Denis_Nazarov)	2					7	9
29	Nenov A.I. (Vismus)	2					7	9
30	Shlyk D.A. (Danishl)	1					7	9
31	Mironov (Neuhov)	1					7	9
32	Lebedev K.V. (Kirill_K3_47B)	2					6	8
33	Orekhov (Quizzle)	1					6	8
34	Fomin A.S. (Alikrey)	2					5	8
35	Yakunin A.A. (-swear)	1					4	8
36	Sadokhin K.P. (xchanskiy)	2					6	7
37	Nikolin D.S. (nikiminaj)	2					6	7
38	Kislov D.D. (Lime33)	2					6	7
39	Ogorodnikov D.A. (TanatosX)	1					6	7
40	Mir (Dick0wner)	1					6	7
41	Shil'nikoa M. (ShilMS)	1					6	7
42	Petrenko N. (Natalia Petrenko)	1					5	7
43	Talkhin D.S. (Damoni)	1					5	7
44	Sabit N.E. (nuraay)	2					ban	ban
45	Sejіlkhanov M.B. (Murrat)	1					4	7
46	Aptai1 E.R. (erzhan1234)	1					ban	ban
47	?bdurazakov R.B. (Abdurazakov)	1					4	7
48	Kaldybekov A.M. (Aisultan23)	1					4	7
49	Matushkin S.A. (SergMatushkin)	2					6	6
50	Tatarinov (Yujiro)	1					6	6
51	Kurakina M.A. (MAryku1989)	1					4	6
52	Koval'chuk (gigtop)	1					4	6
53	Simonyan D.S. (DIANAS200111)	1					5	5
54	Katya (mccat)	1					5	5
55	Gusev D.D. (dimenorm)	1					5	5
56	Deev K.A. (Konst1993)	1					3	5
57	Iliyas S.E. (serzhann)	1					3	5
58	Salman S.?. (Syrym123)	1					3	5
59	Darkov (Sxrry)	1					3	5
60	Grechishnikova L.M. (Lidiya0512)	2					4	4
61	Oreschuk N.O. (Spezia)	1					4	4
62	Prokof'ev A.O. (Artem123414)	1					3	4
63	Gryaznov M.A. (sushichef)	1					2	4
64	Marat Sh.Sh. (sh?mshi)	1					2	4
65	Polyakov (SQLizzzard)	1					2	4
66	Kotyalrov M.V. (GUSb)	1					3	3
67	Korgambekova A.K. (Ajzada27052000)	1					2	2
68	Schapov (__sql__)	1					2	2
69	Varfolomeeva M.S. (mnlghtr)	2					1	2
70	Kakhanova O.N. (KakhanovaO)	1					1	2
71	Dettsel' (AlexDET)	1					1	2
72	Shebnev (si.shebnev)	1					1	2
73	Timofeev M.S. (timofeevms1982)	1					1	2
74	Avolej (avo159)	1					1	2
75	Esligen (bamboozle)	1					1	2
76	Brayner (Luiz0202)	1					1	2
77	Nurmagambetov T. (TimurNurm)	2					1	1
78	Stryukov (stryukov)	2					1	1
79	Petrov (Eugen_Petrov)	1					1	1
80	Noskin (CptBubbles)	1					1	1
81	Khomich D.L. (Tipelllo)	1					1	1
82	Moiseev R.T. (Ruslan135)	1					1	1
83	Yanpol'skij G. (9zno)	1					1	1
84	Vladislavovich A.C. (ArtemChernov)	1					1	1
85	Amulakov B. (Basang13)	1					1	1
86	Khovrin (LunarShadows)	1					1	1
87	Kondrashova N.E. (Natalia24111983)	1					1	1
88	nikoc (nikoc_68)	1					1	1
89	Nagibin T.S. (GoDDeS)	1					1	1
90	Kuzmina (gehtenplanet)	1					1	1
91	Koptel'tsev V. (selber)	2
92	Lazaro A. (for_alilana)	2
93	Isaev V.Yu. (Valer4N1)	2
94	Shyngys D.N. (DaRRiK)	2					ban	ban
95	Malakhov (dimmal)	2					ban	ban
96	Nurmanov M.B. (promaladoi)	2
97	Ziadin A.S. (Aidana123)	2
98	Kudriavtsev P. (Osas)	2
99	Karimzhan N. (nomad_g)	2
100	Bajzhіgіt E.?. (eraaa077)	2
101	Shibaev (saah)	1
102	Krasovskij E.A. (pegoopik)	1
103	Petrov Y. (YuriPetrov)	1
104	Pupkin (Kikimora)	1
105	Amadi P.A. (mikogen)	1
106	Polyakov V.M. (rock_4)	1
107	Sigankov V.I. (vasilyvanc)	1
108	Musin T.B. (takhirstorm)	1
109		1
110	alisetty K.K. (kalyan0249)	1
111	Makarov D. (Dmitriy Makarov)	1
112	Grishina T. (Tatyana Grishina)	1					ban	ban
113	Smith (tibacityblues)	1
114	Ol'shanetskij S. (SLAV2019)	1
115	Gasevskij (I3acsi)	1
116	Ovsyannikov M.V. (MaxOvsyannikov)	1
117	Andzhukaev E.S. (suzume)	1
118	Abdimanapov O.M. (Olzhas Abdimanapov)	1					ban	ban
119	Magomadova T.O. (tasya20)	1
120	Orlova A.D. (O AD)	1					ban	ban
121	sdfsersdFF S.A. (wkjhf34)	1
122	Dunaev K. (Scrollz)	1
123	Pupynin A.P. (fortuner_brn)	1
124	Olejnikov A.A. (lefes)	1
125	Fedulova D. (Vixenisis)	1
126	Kuznetsov K.Yu. (kyzkiri)	1					ban	ban
127	Pantin I.M. (Darrix)	1
128	Usti (Ustia)	1
129	Najik (Najik7)	1
130	Komarov A.K. (Arkolotu)	1
131	Kovaleva L.V. (LarisaK)	1
132	Bukovshyn V. (quickybrains)	1
133	pppat (ferta)	1
134	Aniskovich E. (evgeniyaniskovich)	1
135	Novikov S.V. (@Ser589QA)	1
136	Kulik E.Y. (pl.sinner)	1					ban	ban
137	R. (Wra1th)	1
138	qwe (metaf)	1
139	Bueva A.V. (yeeen)	1
140	Qadyrkhan E.E. (Era2005)	1					ban	ban
141	Tokar K.I. (Zegwaer)	1					ban	ban
142	Komov S.M. (Komov S. M.)	1					ban	ban
143	Abubakarov T.R. (DoubleT)	1
144	Safaralieva U.N. (queenss)	1
145	Lysykh V.K. (Usilitel')	1
146	Afanevich E. (Ketra)	1
147	Kazankin S.G. (500400)	1
148	Nemashkalova (twinkle5016)	1
149	Kupriyanov V.A. (Vladuck)	1
150	Kamalov A.A. (kamalov_08)	1
151	Shinde A.S. (GhostFreak)	1
152	Rotar' Yu.R. (YuriyRotar)	1					ban	ban
153	Smat Zh.N. (Dopustim)	1
154	Weimer (ilwe)	1					ban	ban
155	Seitzhan R.Z. (rauanio908)	1
156	Kubentayev A.A. (Adilium)	1
157	Mikhail A.S. (rffjfgxjfgxjfdgjfxjfdxj)	1
158	Shajkhin A.V. (Kiilaru)	1
159	Uzbekbaeva A.M. (Rushka)	1
160	Nanava D.B. (1ucky_Num83r_13)	1					ban	ban
161	Neklyudova D.S. (Ms_N_Di)	1
162	Bakbergenova A.B. (bakbergenova)	1
163	Syhymbekkyzy S.S. (Sabpp)	1
164	Zhumadilov A.R. (KiDFeeD00)	1
165	Ajmakhanov E.E. (Ern?r)	1					ban	ban
166	Nur A. (nurass)	1
167	Alimbekov S. (TheSamat)	1
168	Sardarbek B.D. (Balnuras)	1
169	Kolomoets M.A. (Mahrajabik0)	1
170	askarov A.N. (amiraskarov)	1
171	K B.S. (Xpline)	1
172	Everec L.V. (ikenak)	1
173	kkk K.K. (Yulya123352)	1
174	Korovina A. (AVl25)	1
175	Bityutskij S.A. (HaNsOo)	1					ban	ban
176	Sotnikova M.Yu. (Mariya Sotnikova)	1
177	Orlov (ktrsis)	1					ban	ban
178	Betz K.A. (satanbassist)	1
179	Azarov M. (Azarrr01)	1
180	Cherdakov (zcherdakov)	1
181	Grigor'ev (AFxAster)	1
182	Orekhov L. (lyo)	1
183	Tulyakov A. (AlexTull)	1
184	Taroyan (lkasjdfh)	1
185	Saprykin A.A. (Asaprykin5)	1
186	Gagarin (kikimoran1)	1
187	Sharapanov R.Ya. (klemira)	1
188	maksimov N. (tihiyH)	1
189	Feofanov V.S. (Feo_Vladimir)	1
190	Kan (maxim78)	1
191	Velichko R.V. (IVel1R)	1
192	Zabolotnev A.A. (Zabolotnev A.A. K3-64B)	1
193	Alejandro O.P. (PrograOmar)	1
194	Yaroshchuk (Alexander_1001)	1
195	Popov M. (Underdog12)	1
196	Kotau Y. (evko)	1
197	Alikishieva E.A. (ya alyona)	1
198	bykova A.A. (alena1023)	1
199	Ergashev A.A. (Akhror)	1
200	Degtyarev A.M. (Alex Deg)	1
201	asetovich M.A. (Kuropatka)	1					ban	ban
202	Serdobintsev N.M. (mikhalychh)	1
203	Ermakov K.V. (kst_ermakov)	1
204	Unregistered	21

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References