Today's statistics at "SQL Exercises"

July 22, 15:39 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	Solomentsev (DenisC)	2			5	6
2	Savinova (Alenari66)	1	2	3		3
3	Koltovich M. (loufoque maria)	2			2	2	1	1
4	Odnokurtsev (AlFochino)	4			1	1
5	Mikhalin (ultrahacker)	1					15	27
6	borkar P.N. (pb52)	2					15	25
7	Khadatkar A. (Aryan_K)	1					15	21
8	Shevtsov M.Yu. (UssrTourist)	2					15	18
9	Luneva D.A. (DLuneva)	1					15	18
10	Rytkov V.A. (Creper_f)	2					11	18
11	Nozdrachev A. (nozddr)	1					11	14
12	Leonard R. (V0n)	1					8	14
13	Khudajberdyev A.A. (a.khudaiberdyev)	1					10	13
14	Shil'chenkov M.A. (msmshilchenkov)	1					7	12
15	Raut R.P. (Ruchiika)	1					9	11
16	Gurav K.A. (Kunjangurav20)	2					ban	ban
17	kalbande V.P. (Vedant07)	1					ban	ban
18	Mudgal V.K. (vedaa)	1					8	10
19	Gadling A.V. (ARY4N)	2					6	10
20	Burtonov A.V. (tak to)	2					6	10
21	Pitcil (fallsin)	2					ban	ban
22	Tovmasyan D. (kidivad22)	1					8	9
23	Shishova P.S. (shajealess)	3					7	9
24	Bawane H.U. (Harsh_18)	3					ban	ban
25	Wadibhasme K.A. (khushi wadibhasme)	1					6	9
26	Zhirnyakov V.M. (vladdisshhe)	2					7	8
27	Khristyuk A.A. (NassKh)	1					5	8
28	Ghule R.M. (Rachit_Ghule)	1					5	8
29	Yakovleva T.P. (semmber)	1					7	7
30	okate T.G. (Tanishq)	3					6	7
31	Morozov E.A. (ew1d)	3					6	7
32	Woland (Wolandd)	1					5	7
33	Vasil'ev (GudiniMoonlight)	1					6	6
34	Korotkevich I.A. (somnambula)	1					4	6
35	trnv D.M. (dmtrnshsss)	1					4	6
36	Pugacheva A. (pugacheva)	1					3	6
37	Vor (Daschutka)	1					5	5
38	suleymanova E. (elvichka)	1					5	5
39	Bakaeva Yu.A. (ulabakaeva)	1					5	5
40	Ryzhenkov G.M. (gregbaba)	1					5	5
41	Khokhlov (TermiDD81)	1					3	5
42	Akkazhov M.I. (Meir_82)	1					3	5
43	piopio5 (piopio5)	1					3	5
44	Altashin S.V. (burrito)	1					4	4
45	Beast M. (mr beast)	1					4	4
46	Kolpakov (VJiQ)	1					3	4
47	singh A.O. (Abhishek26)	1					3	4
48	Bobade V.D. (vedant@786)	1					3	4
49	Zharylkapov A. (zharylqapov)	1					3	4
50	Zorkin A.M. (SpamAttack)	2					2	4
51	Evlanova (Kate_E)	1					2	4
52	Anait A.A. (pau44o)	1					2	4
53	Haciyev I.A. (Ismayil)	1					ban	ban
54	Sergazy A. (sergazy11)	1					3	3
55	Sukhadeve N.R. (Nitin1710)	2					2	3
56	Konovalov (Areksei)	1					2	3
57	Petrunina A.Yu. (petruniina)	1					2	3
58	Balpande V.K. (Vedantiiii)	1					2	3
59	Zubkov D. (Dm54)	1					2	2
60	Azimov (magamaga)	1					2	2
61	Waghare A.S. (Aatharva)	1					2	2
62	Karelina M.A. (Mariya Karelina)	1					2	2
63	Ahunova (Lita8)	1					2	2
64	drobysheva M.A. (MARYYYYYYYYY)	1					2	2
65	Bitsoev E.T. (Bisotti Eduard)	2					1	2
66	Novikov A.N. (Takuan)	2					1	2
67	Arutyunyan A.A. (ARTUR1100)	1					1	2
68	Dogadov S.V. (Serzho)	1					1	2
69	Maksimov M.M. (garkoh)	1					1	2
70	Sotnikov D.V. (locksmich)	1					1	2
71	Volkova E. (keke97)	1					1	2
72	Klevanskaya A.R. (nastenakleva)	1					1	2
73	Gudadhe T.A. (Tanmay2007)	1					1	2
74	Filch A. (ArgusFilch)	1					1	2
75	Lobkovskij R.S. (Roald)	1					1	2
76	Bunaev V.V. (ineedluv)	1					1	2
77	Ivanov I.I. (Ivanych674)	2					1	1
78	Koshkin D.M. (codimka)	2					1	1
79	Trusov (Nomenex)	1					1	1
80	Makhova A. (Makhova)	1					1	1
81	Evgen'ev (gek_c)	1					1	1
82	Tarasov A.S. (FableDev)	1					1	1
83	Bessmertnyj (uroborosu)	1					1	1
84	Yeole V.P. (vedika123)	1					1	1
85	N (lera9441)	1					1	1
86	Trufanov A.A. (wheele)	1					1	1
87	urekadze L. (AlThor)	1					1	1
88	Almamat (amir4ik951)	6					ban	ban
89	ss (poe45)	3
90	Akimov N.V. (Nikita A)	3					ban	ban
91	Bukaeva E.N. (e.buka)	3
92	Pipch (Pipch)	2
93	Sarkis'yan G. (gennadi_s)	2
94	Shaikh (Angy33)	2
95	Belyaev P. (Dreksil)	2
96	Silant'ev N. (Pylone)	2
97	Bogatyrev N.V. (BNV2873)	2					ban	ban
98	Marushevskij M.S. (Selezen.x55)	2					ban	ban
99	Abdulov F.N. (FuadSQL)	2
100	Dharmik N.L. (Nihira)	2
101	choudhary L. (lipakshi)	2
102	Folomeev (Cap1568)	2
103	Mkrtchyan K. (Komaru)	2
104	Ivanov (xdout)	2
105	Bergman (kontur19)	2
106	Terent'ev D.V. (Teddy_8)	2
107	Bisultanov T.R. (TimiS222)	2
108	Shibaev (saah)	1
109	Krasovskij E.A. (pegoopik)	1
110	Goguadze G.A. (Eminem)	1
111	Berkovich A. (ArturBerk)	1
112	Sigankov V.I. (vasilyvanc)	1
113	omiko (omiko1)	1
114	Talip (Tanzilia)	1
115	Evseev R.V. (evseev_r69)	1
116	Protsko M. (arhast)	1
117	Naryshkina T. (TatianaN)	1
118	Petrov M.K. (Gerr Kartoshechka)	1
119	Semenikhin D.A. (Gennadij Smirnov)	1					ban	ban
120	Pashkov M. (MaxtheSon)	1
121	Ivanov I.I. (vlad91)	1
122	N T. (TarasN)	1
123	Pavel (niakr1s)	1
124	Scherbakov S.A. (mnlght)	1
125	Bondarenko D.B. (Hecvi)	1
126	Ustavshchikov D.V. (Dustver)	1
127	Evt (evttany)	1
128	Strakhov V.P. (ohfudge)	1
129	Piotka V. (Pilotich)	1					ban	ban
130	Mal'tsev S. (Deribas2)	1
131	Koscheev A. (Alexey Koshcheev)	1					ban	ban
132	Burkasov M. (m.burkasov)	1
133	Muhhekaneok (Muhhekaneok)	1
134	Shikov V. (Viktor_TG)	1
135	Chaganov O.A. (Zintak)	1
136	Sichev (AncientGreek)	1
137	vi V.V. (fertylovery)	1
138	Strukov (StrukovSA)	1
139	Aro E.F. (Ekaterina Araud)	1					ban	ban
140	Diyatova A.S. (longcat)	1
141	Nikulin A. (Diegu)	1
142	Gonvharov T. (timurgoncharov)	1					ban	ban
143	Revenko M.A. (CptDisturbed)	1					ban	ban
144	Yanitskaya A.D. (bbllvckk)	1
145	Bash P. (pitobash)	1
146	Zhmyshenko (notepu1)	1
147	Malinchik K.D. (Skaipia)	1
148	Moskvina E.A. (lib3thil)	1
149	Gordeeva (Juliava)	1
150	Bulkhukov S.D. (qurultai)	1
151	R. (Wra1th)	1
152	Chernyshov M.M. (Mblack)	1
153	Domashov A.P. (Hausov)	1
154	Etter (Ekketterr)	1
155	Drobysheva M.A. (Vfva1)	1
156	Akameeva S.V. (SVA1)	1
157	Rachkovskij A.V. (rawwarik)	1
158	Ramazanov G.M. (giyas)	1
159	Gudkov V.S. (vovanch)	1
160	Sizova (Kharitoshka)	1
161	Aleksandrova V. (VolhaAlex)	1
162	Znamenskaya E.A. (Katrina_Marrei)	1
163	Shvetsov D.Sh. (DanechekSw)	1					ban	ban
164	Ganiyev A. (lernanto)	1
165	Zakharov (svyyy)	1
166	Murat M. (murat_mukhammed)	1
167	Ponomarev M.P. (MatveyF)	1
168	Daron (Daron_g)	1
169	Korolev A.A. (Ereticheskij Chajnik)	1
170	Antonova (Elena_No)	1
171	test (qwerty37892)	1
172	Maslennikov A.S. (Maslennikov.Anton)	1
173	Voronov R. (edemr26)	1
174	Scherbakov (chYwarY)	1
175	Go G.G. (greegory)	1
176	M (mqtraher)	1
177	alex (alex2228)	1
178	Savchenko V.P. (Vladislav11111)	1
179	Nhane S.M. (Sujal)	1
180	Dumpala A. (Akhil d)	1
181	Dewase R.Y. (rutunjdewase)	1
182	Rajurkar P.S. (prathamrajurkar)	1
183	Zanjad S.T. (Shreya Zanjad)	1
184	Ingole S.D. (Keshav-Ingole)	1
185	Patil T.N. (Tanay070607)	1					ban	ban
186	Bhatt S. ($aketh)	1
187	Lokhande H.T. (harshlokhande07)	1
188	Wil F.-. (Wilfrech)	1
189	487 (487)	1
190	- V. (Varabi)	1
191	gupta P. (praveenji)	1
192	Likhanskaya A. (MissTics)	1
193	Andronov D.A. (kr4nder)	1
194	Timina T.N. (Tatiana7)	1
195	Nevskij D. (SkipOne)	1
196	kavta S.K. (kavtkavt)	1
197	Smirnova (Varvara123)	1
198	Birin (Pirogoglot)	1
199	Dumpala A. (Akhil.d)	1
200	morozov (Ilya1!1!)	1
201	Yurchenko E.Yu. (Evalin26)	1
202	Guba E.B. (geeebbb)	1
203	Tate A.G. (G sql)	1
204	Satov B.Z. (Bekbolatsatov)	1
205	mariami M.A. (Mariam abramishvili)	1
206	Pokatilo V. (varennechko)	1
207	Zhurina A.S. (@vslanss)	1
208	Timayev V. (vadim-tm)	1
209	Ivanova E.A. (kater700)	1
210	Rakhmanin (peppersouls)	1
211	Nikson (Rjandd823)	1
212	Nazarova M.I. (Maris)	1
213	Skrybykin (Yakut_02455)	1
214	Shevchenko A.A. (Yter)	1
215	Unregistered	42

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References