Today's statistics at "SQL Exercises"

June 08, 13:41 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	fioletovaya (fioletovaya2)	1			1	2
2	ss A.S. (SashaSS)	1			2	2
3	Gitinomagomedov (gmansur88)	4	1	40		1
4	Shibaev (saah)	1	1	1		1
5	Fisenko P.V. (fisenkopv)	2					40	61
6	Banzarov E.B. (buddha.)	1					ban	ban
7	Gizatullin R.R. (bouncyfeeling)	1					15	20
8	Zhukov (deSmoNd-iwnl-)	1					14	17
9	Beloumtseva (sofyabel21)	1					ban	ban
10	Abdullina A.Yu. (Alsu07)	1					8	14
11	Arkhipov (remaseds)	2					8	13
12	Tkacheva K.A. (krissttik)	1					ban	ban
13	Perekhodin (V1neel)	1					7	11
14	Baum J. (jblogic)	2					8	9
15	Korepanova V.S. (nikkka_)	1					7	9
16	Okladnikov K.A. (Kirill25561)	1					7	9
17	Gulenkova E.A. (gtkate)	2					6	9
18	Abdigali N. (Nurassyl222)	2					7	7
19	Turlo M.A. (maksimturlo)	1					6	7
20	L (cisleiris)	1					6	7
21	Braun M.V. (oneofusisdying1011)	1					6	7
22	Ivanov I.I. (dzemor3)	2					4	7
23	Kamyshov D.N. (SlavaRossii3)	1					4	7
24	Zozulya P.A. (Polechkaaa)	1					4	6
25	Frolova P.A. (Lee Lina)	1					3	6
26	Petrova G.I. (Galina_psql)	1					3	6
27	Ibrayev A. (Devnuar)	2					5	5
28	Spesivtsev S. (serxios)	1					5	5
29	Chirkova N. (ChVS)	1					5	5
30	M A.S. (Sashha)	1					5	5
31	Dedova E.V. (Dedova Ekaterina)	1					4	5
32	Sobolev N.A. (NickolaySobolev)	1					4	5
33	Ivanova E.I. (eve.eve)	2					3	5
34	Shvajko A.V. (Anastasia Shwayko)	1					3	5
35	Rybin (AlexRybchik)	1					ban	ban
36	Nos Ya. (yana_nos)	1					3	5
37	Saveliev I.U. (Rizruf)	3					4	4
38	Lama (Lama Koaytnaya)	1					4	4
39	Pryanichnikova (pryanyarar)	1					3	4
40	Sidorin T.A. (ZALLiRoG_XXX)	1					3	4
41	Torgasheva (senya_t)	2					2	4
42	Lazarev D. (Scrollcer)	1					2	4
43	Nikiforova N.S. (Kefonka)	1					2	4
44	kham (kh4m1)	1					2	4
45	Sharipova R. (RimShar2026)	1					2	4
46	S (n1pron)	1					2	4
47	Popov (Kuningas)	1					2	4
48	Savitskij R.S. (zzzzqqqqx)	1					2	4
49	Varta (valeks03)	1					2	4
50	Trofimova (ntrofy2026)	1					3	3
51	rrr R.R. (trostn)	1					3	3
52	Alekseev N.A. (n_crls)	1					2	3
53	Vasiliev (onizuka27)	1					2	3
54	test (qwerty37892)	2					2	2
55	Gali H.V. (Harsha10100)	1					2	2
56	Alekseev A.S. (Andser)	1					2	2
57	Kursed (qweZxcKing)	1					2	2
58	korovka K. (kirkorovka)	1					2	2
59	Sizen V. (s1sam)	3					1	2
60	solovev A.A. (otom4ik53)	1					1	2
61	Zhukov N. (sariya_)	1					1	2
62	Sargsyan A.A. (Dagnee)	1					1	2
63	Kok A. (Eccentrix)	1					ban	ban
64	Tarasov A.S. (FableDev)	1					1	2
65	Anonov (m0n0warg)	1					1	2
66	Murat M. (murat_mukhammed)	1					1	2
67	Marsheva E. (Marsheva)	1					1	2
68	Valeev Yu.S. (Halturik)	1					1	2
69	M I. (Irina2026)	2					1	1
70	Ivanov I.I. (vlad91)	1					1	1
71	Khamuev (Tabooret)	1					1	1
72	Tskhao N.M. (caonimenma1)	1					1	1
73	Shvajkina (lenor666)	1					1	1
74	Trefilov M.A. (Max1mka.x)	1					1	1
75	Alikbarov K.M. (konst545)	1					1	1
76	Chauhan R. (Rubain)	1					1	1
77	Koptel'tsev V. (selber)	5
78	Turuzbekova A.M. (Aylin120699)	3
79	bau B.B. (baumann)	3
80	Mishin V. (Gr72)	2
81	Vdovin S. (Rujan)	2
82	Kozha (araisan)	2
83	Zajtsev R.O. (zayrox)	2
84	Safronov P.A. (Paulus73)	2
85	Dudarev K.V. (Kirill_Netot)	2
86	Bogatyrev N.V. (BNV2873)	2					ban	ban
87	Lebedev E.A. (hardbit)	2
88	DSouza R. (UveBeenRomarioD)	2
89	Kuz'menko (Flamberg_HF)	2
90	Vyazovetskov A.S. (alex_v)	1
91	Pastel T. (paste7l)	1
92	Kurochkin P.A. (qwrqwr)	1
93	Krasovskij E.A. (pegoopik)	1
94	Kostomarov A.V. (al29)	1
95	Ptitsyn A.N. (art777)	1
96	Gorbunov M.S. (gms)	1
97	Ishmukhametov R.R. (vanonian)	1
98	Franson K.E. (KEHBECK)	1
99	Abdulmanapov A. (Dvarik)	1
100	Shamurat A.A. (transformator)	1
101	Petrov N.V. (Nick21)	1
102	Voronov D. (Elnov.70)	1
103	Tyul'pin V.A. (tiulpin)	1
104	Orlov A. (esterio)	1
105	Vakhromov (v4w)	1
106	Nevskij A.V. (Abraxis2019-2019)	1
107	Kajgorodova A.Yu. (nestynes1)	1
108	Sereda D.N. (Sereda)	1
109	Piotka V. (Pilotich)	1
110	Shipulin I.M. (DanMero)	1
111	Alieva E.S. (AliLen)	1
112	qwe R.Y. (TheWrongOne992)	1					ban	ban
113	Yurchenko Ya.V. (Fizmarazmat)	1
114	Starikov D. (StarikovDima)	1
115	Pomirchiy Y.N. (pomirchiy)	1
116	Khokhulin A.S. (Lewon-Grand)	1
117	Tarabukin (dmitriitarabukinnickname)	1
118	Volodin D.M. (dania0081)	1					ban	ban
119	Kravtsov (Kravts.x)	1
120	Zakharov M.V. (SoEasy)	1
121	Marshutina E.N. (miss_keyta)	1					ban	ban
122	vktory369 (vk1991)	1
123	Kolobrodov V.P. (ganship)	1
124	Sarkis'yan G. (gennadi_s)	1
125	Nasibullina (swetie)	1
126	Dmitriev N.V. (Son1do)	1
127	Skokov B.S. (leks$$)	1
128	Antonov (ozzy95)	1
129	Burlakov (sergej.burlakov)	1
130	Trufanov (vladtr)	1
131	Kuznetsov V. (prince9403)	1
132	Vasin I.S. (BackForthing)	1
133	P I.*. (IrinaPetr)	1
134	Rozanov +. (maximilian_rozanoff)	1
135	Golovkin I.A. (GHOST2508)	1
136	R. (Wra1th)	1
137	Stepanov (LexFrom)	1
138	Korolev R.V. (zouker)	1
139	barkova Y.I. (cheshk1)	1
140	Komov S.M. (Komov S. M.)	1
141	Afanas'ev V.A. (AVA_13)	1
142	Lysykh V.K. (Usilitel')	1
143	Mishin E.P. (zpendik)	1
144	Boronbaev D. (senpaidias7)	1
145	Seregin (sk15)	1
146	tagiyeva N.G. (nurcvmmcmmaad)	1					ban	ban
147	Odnokurtsev (AlFochino)	1
148	Alekseev M.A. (ama2301)	1
149	Mozhegov (Danila.M)	1
150	Bal'zhinimaev K.A. (iqkdjos1)	1					ban	ban
151	Gadzhiev (nu3on)	1
152	Cherepanova A.R. (Alexandrina1.0)	1
153	Makarova A.A. (Pinkochka)	1
154	Stytsyuk N. (natalia19930420)	1
155	Aleksandr (AleksandrSQLMaster)	1
156	Afanas'ev S. (TIGR228)	1					ban	ban
157	Novikov (lepric)	1
158	Lyubimenko E.V. (lenwa)	1
159	Shokhalevich A.N. (Anashok)	1
160	Kim K.S. (lumbersh)	1
161	Petrov A.I. (Tobo-bobo)	1
162	hozoy Y.Yu. (yozoh)	1
163	Shur (vishur21)	1
164	Romanov L.A. (Lion_io900)	1
165	Sapsin M.A. (Maksim Sapsin)	1
166	Koval' (koval12)	1
167	Mi (Valentisiami)	1
168	Koropchan (Gal87)	1
169	Stonis S.O. (Sergjik23t)	1
170	Gudelnikov S.A. (SG1328)	1
171	Majer A. (AntonM66)	1
172	Zakharov (svyyy)	1
173	Petrukhin M.A. (DidicitDiscere)	1
174	Kpiev D.A. (pupinzalupin67)	1
175	Pottery L. (KishKotenok)	1
176	Tsukanova D. (Diana Tsukanova)	1
177	zaitsev (Mr.Danil_SQL)	1
178	Mozhajskaya G.A. (Vtb60462)	1
179	Bespalova V.Yu. (ABCDEFGH_2020)	1
180	Tyo V.E. (Miracle-)	1
181	G (Ol'ga G.)	1
182	Gorshenina S. (gorshenina.svetlana)	1
183	Mak (Solonochka1216)	1
184	Jusupova K. (Kani20)	1
185	Stasilevich A. (AlinaStasi)	1
186	Kharitonov E.A. (Zh-end-oS)	1
187	Belyaeva (bel_kar)	1
188	Viktorov V.K. (Goblin67)	1
189	Savin S.E. (Semen228)	1
190	Taha B.A. (baha__)	1
191	Brodovikova Yu.L. (juliabro)	1
192	olenova D. (Diaaanaaaa)	1
193	Malyavin D.D. (JiYo)	1
194	Icheve I.I. (Icheve)	1
195	Slavgorodskij P.O. (KillerBi1337)	1
196	Unregistered	17

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References