Today's statistics at "SQL Exercises"

June 15, 15:32 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	Lymar' K.K. (Kirill L (TsI))	2			9	12
2	Safronov P.A. (Paulus73)	1	2	118		3
3	Nope (ScreamingSeagull)	2			3	3	2	2
4	P I.*. (IrinaPetr)	3	1	80		2
5	Shibaev (saah)	1	1	6		2
6	Gornikov A.P. (AG3)	2	1	1		1	6	7
7	Khamuev (Tabooret)	1					ban	ban
8	Kim K.S. (lumbersh)	1					ban	ban
9	Nosov A.A. (Aleksej (FTO))	1					12	21
10	Taigarayev Y.K. (ZeroFGM)	2					15	18
11	Tlegenov I. (tlegenovv)	1					15	18
12	Nasirli T. (TuralNas1rl1)	1					15	18
13	Yushina Yu.K. (YuliyaYushina)	1					11	18
14	Averin A.R. (alverin1310)	1					13	16
15	Boronbaev D. (senpaidias7)	2					8	16
16	KAKABAYEWA B.A. (BIBIGUL11)	2					13	15
17	Harsyyeva A.B. (aysenem05)	1					13	15
18	Yudin G.L. (melorybae)	1					12	15
19	Ivanov N. (nick8998)	1					9	15
20	A (ArdakA)	1					11	14
21	Jumadurdyyew D.C. (dowran04!)	1					11	14
22	atabayew A.A. (atabay999)	2					10	12
23	chowdurow G.T. (chowdurow)	2					10	12
24	Zaverin M.A. (nedo23)	1					11	11
25	Mamedow G. (gurbangeldi03)	2					10	11
26	Stroev A.A. (sni1lout1)	2					9	11
27	Tret'yakov A. (Tolyas88)	1					9	11
28	Borjakowa A.Y. (Aygul2001!)	1					8	11
29	Q (ala4ste)	1					ban	ban
30	Gurbanbayeva A.M. (Arzuv1)	2					9	10
31	Pankratova N.D. (Nadegda94)	1					6	10
32	Spiridonov (ww3)	1					6	10
33	JB (JBRN)	1					7	9
34	Shal'neva T.V. (Tatyana30.07)	1					7	9
35	Emirov N. (breeze_)	1					5	9
36	JJ J.J. (Legalize Nuclear Bombs)	1					5	8
37	zharova M.B. (malikkkk)	2					6	7
38	Shajkhutdinov M.I. (mariobraza)	2					6	7
39	Vetoshnikova E.S. (kate23_)	6					5	7
40	Zhukov N. (sariya_)	1					5	7
41	nstplz (nstplz1)	2					4	7
42	Khusnutdinov D.D. (Abdulxamid)	1					4	7
43	--- (lockjaw556)	1					4	7
44	Pakhomov A.S. (pahomovas)	1					4	7
45	Kabayewa E.D. (Erikgul02!)	1					6	6
46	Detskaya A. (detskaya)	1					4	6
47	Yakovlev (Dez46)	3					3	6
48	Gantulga (Danna_g7)	1					3	6
49	Balduev D.G. (Dorgo)	1					5	5
50	Babuev B.B. (senqikk)	1					5	5
51	Bayramova M.A. (merjen02!)	1					4	5
52	Anonov (m0n0warg)	1					3	5
53	Medvedev A. (Medvedyik1)	1					4	4
54	test (qwerty37892)	2					3	4
55	Sharipova R. (RimShar2026)	1					2	4
56	Gadzhiev (nu3on)	1					2	4
57	Tskhao N.M. (caonimenma1)	1					2	4
58	Puschik E.A. (Pushka24j)	1					2	4
59	Kuksa I. (gtgtgt)	2					3	3
60	I I.P. (Irina6202)	1					3	3
61	Zachem vse eto (Pol1k)	1					3	3
62	Rozanov +. (maximilian_rozanoff)	2					2	3
63	Ivanov (Yurikus)	1					ban	ban
64	smith (eng MN)	1					ban	ban
65	Soboleva I.Yu. (Matreshka_)	1					ban	ban
66	Urvantseva D.D. (dasha.urvantseva)	1					ban	ban
67	Maslennikov A.S. (Maslennikov.Anton)	1					2	2
68	Balakirev I.O. (Ziorde)	1					2	2
69	Smetanin D.Yu. (Dmitriy Smetanin)	2					1	2
70	Serdyuchenko E.Yu. (eserdyuchenko)	2					ban	ban
71	Spiridonova (speakviki)	2					1	2
72	Kumarina (NatashaK)	1					1	2
73	Epifanov F. (Phatick)	1					1	2
74	Pushin A. (g_skritt)	1					1	2
75	Rebovskij (x-lerasim13)	1					1	2
76	Semenov D.-. (Dmitry.S.)	1					1	2
77	Borisenkov I.M. (VWgolf6R)	2					1	1
78	Boy (Musclexboy)	2					1	1
79	Sidorin T.A. (ZALLiRoG_XXX)	2					1	1
80	Filyaeva A. (Aafilyay)	1					1	1
81	Markizova A. (alice_denovna)	1					1	1
82	Arronet P. (Arr-t)	1					1	1
83	ismadulla G.G. (xoosxoos)	1					1	1
84	Dralina E.M. (Liza_mikh)	1					1	1
85	Sapayeva I.B. (Ilmira1)	1					1	1
86	Ryzhikova P.S. (polinapir03)	1					1	1
87	Koptel'tsev V. (selber)	2
88	Odnokurtsev (AlFochino)	2
89	Romanenko N. (bewater)	2
90	Kulyamov T.V. (refetor)	2
91	Krasovskij E.A. (pegoopik)	1
92	Zakharchenko N. (NataZNG)	1
93	Malysheva K. (Scarlet_wind)	1
94	Alexandrova (Valenok92)	1
95	Petrov N.V. (Nick21)	1
96	Luk'yanova (fewsymbols)	1
97	Mador (vrooom)	1
98	Vol'khin A. (Crowingrow)	1
99	Koloskov (Art_Dart)	1
100	Katerushin V. (nokaveju)	1
101	Lazarev D. (Scrollcer)	1
102	Makharadze A. (armakharadze)	1
103	qwe R.Y. (TheWrongOne992)	1					ban	ban
104	Gur'eva I.O. (Inna_gur)	1
105	Panchenko (FrauAja)	1
106	Wooster (Nick Bucklow)	1
107	Aleksandrov A.Yu. (AlexandrovAY)	1
108	Topilina E.V. (kat9i)	1
109	Kuznetsova E.D. (Ester_g)	1
110	Krysinel V.L. (VitKR)	1
111	T A. (Anju_sha)	1
112	vktory369 (vk1991)	1
113	Smolnikov (ViciousXerra)	1
114	Pechkin R.E. (ZiRus)	1
115	Sarkis'yan G. (gennadi_s)	1
116	Kryzhanovskij N. (Nicky_FF)	1
117	ss A.S. (SashaSS)	1
118	Rodin (uoloki)	1
119	Antonov (ozzy95)	1
120	Esembaev (steve_blowjobs)	1
121	Zajtsev R.O. (zayrox)	1
122	Burlakov (sergej.burlakov)	1
123	Korolev (NoiseSparrow)	1
124	Kravchuk O.T. (Popori)	1					ban	ban
125	tsoy (hznikdima123)	1
126	Kuksa I.V. (sheddddos)	1					ban	ban
127	Komyakov Yu.V. (dreamersleet)	1
128	Ismailov M.I. (Mahad)	1
129	R. (Wra1th)	1
130	Akhmerov M.A. (T@noS12_12_99)	1
131	Berezovskaya D.V. (dashaeverafter)	1
132	Burenkov O.G. (Duncans Soffee)	1
133	Lysykh V.K. (Usilitel')	1
134	Vakhovskaya (LIGN)	1
135	Abramov V. (Ichigo Kurosaki)	1
136	Vakulko A.V. (VAlexandrV)	1
137	Murdalov I.S. (ibrams91)	1
138	Stadol'nik (dr_azatort)	1
139	Shevel' V.I. (Zverger)	1					ban	ban
140	Egner A. (arthur2025)	1
141	Petrukhova (sweedee2003)	1
142	Okolnikova (SofyaO)	1
143	Kanunnikov (ininelines)	1
144	Mikaya (Gio9248)	1
145	Serik (Yernur37197)	1					ban	ban
146	suvorov (alexxxx1337)	1
147	Denisov M.D. (Makf_Luri)	1
148	burakov (burakov dimqa)	1
149	SQLMASTER (SQLMASTER1864)	1
150	Kornienko (Ivan Kornienko)	1
151	Stytsyuk N. (natalia19930420)	1
152	Obukhov A.V. (Alex_71)	1
153	Lyubimenko E.V. (lenwa)	1
154	Yusubov I.N. (2Romych11)	1
155	Vasil'ev (GudiniMoonlight)	1
156	Batukhtin (Duckly)	1
157	Sharshenbekova N.E. (Snazira245)	1
158	Bochkova (AnyaBo)	1
159	Shinkevich I.V. (aivan96)	1
160	Grakova (grakovka)	1
161	Il'in I.N. (Igor_Il)	1
162	S (n1pron)	1
163	Smirnov A. (Antoxa_S)	1
164	Gudelnikov S.A. (SG1328)	1
165	Majkova A. (addeshmal)	1
166	Lovchanovskij V.P. (lovcha_v)	1					ban	ban
167	Yurkin N.A. (VeagleV)	1
168	Zyuzyupupuk P.K. (@mutagen00)	1
169	Pottery L. (KishKotenok)	1
170	Murat M. (murat_mukhammed)	1
171	Chunin E. (Greedy_Gnome)	1
172	kh A. (aliastrong)	1
173	Serikkali B.A. (Beknur)	1
174	Fetisova D. (FDiana)	1
175	Ungelmakht A.V. (Barta Linch)	1
176	Shtauh R. (Shtauh)	1
177	Pupkina (Pyyyyyyyyyypkin)	1
178	pinegin A.V. (0_o)	1
179	narush (narush)	1
180	Mazur R.I. (228pAmAx)	1
181	Pupinskij A.P. (Anton Pupinskij)	1
182	Kolodkina M.V. (Babaka170401)	1
183	Lava Ya.I. (GOG1)	1
184	S (Lelix)	1
185	Dedyukhin V.A. (ladd1)	1
186	Frolyonok O.I. (cheburgen)	1
187	Krutoj T. (sql_qa_start)	1
188	Shautsova (alinash143)	1
189	Kovalenko M.A. (ma3ia)	1
190	Unregistered	31

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References