Last week rating | SQL Exercises

June 16, 12:08 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

  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
  • Transact-SQL tests
  • Data simulation
  • Visual simulation (painting)
  • Exercises voting

Forums

  • Learning stage
  • Rating stages
  • Favorites
  • Search
  • Blogs

Certification

  • Certified professionals
  • Statistics
  • Statistics over regions (map)
  • Confirm certificate

HELP

Query optimization

For employers

Support SQL-EX.RU

Last-week results

n_sel - number of select exercises solved this week;
sel_all - total number of solved select exercises;
sel_scores - sum of points on select exercises earned this week;
dml_scores - sum of points on dml exercises earned this week;
scores - total sum of points earned this week;

Involved in rating: 12384

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	Litvinov V.V. (NewsMan)	15	47	33	0	33	985	14 Jun 2019
2	Bajkov A.V. (Andrew89)	11	66	21	0	21	677	16 Jun 2019
3	>Kisselev D. (ryan9)	11	38	21	0	21	1165	16 Jun 2019
4	Kopylov A.V. (alegzey)	7	37	15	0	15	1189	14 Jun 2019
5	Sajgakova A.V. (Ametist)	7	83	14	0	14	363	15 Jun 2019
6	Revyako A.A. (Anton_msk_2018)	10	18	13	0	13	1971	16 Jun 2019
7	Yartsev Yu. (Yury66)	8	28	12	2	14	2408	15 Jun 2019
8	Kon'kov D. (training123)	5	42	9	0	9	1472	15 Jun 2019
9	Abdulmanapov A. (Dvarik)	3	41	8	0	8	1120	14 Jun 2019
10	G (HPavel)	6	16	7	0	7	2102	15 Jun 2019
11	Pavlyuk (Pashka_T)	5	31	6	0	6	1385	14 Jun 2019
12	>Potovin N.N. (cabal trainee)	4	4	5	27	32	6650	16 Jun 2019
13	Krayukhin D. (dkr2)	4	28	5	0	5	2681	11 Jun 2019
14	Kavkajkin N.V. (nikolay2106)	1	72	4	27	31	487	15 Jun 2019
15	Chernov D.V. (Kursist)	1	248	4	2	6	11	15 Jun 2019
16	yakovlev V. (wyt)	2	89	4	2	6	305	16 Jun 2019
17	Novikov (PNA921)	2	81	4	0	4	410	15 Jun 2019
18	Grebla A.I. (A1412)	3	51	4	0	4	937	15 Jun 2019
19	Shabanov R.R. (Vertel)	2	38	4	0	4	1172	15 Jun 2019
20	Dubchak V. (dva2)	1	78	3	0	3	420	11 Jun 2019
21	Alborov K.R. (albor)	3	53	3	0	3	920	16 Jun 2019
22	Shablya A. (Ondresh)	2	21	3	0	3	1805	14 Jun 2019
23	Bizyakin V.A. (Qweasdzx)	1	81	2	0	2	370	13 Jun 2019
24	alex (alex882)	2	77	2	0	2	421	14 Jun 2019
25	Lupakov V.I. (Lupakov V.I.)	1	45	2	0	2	1196	14 Jun 2019
26	Burdenko Ya. (Bsl)	1	29	2	0	2	1412	14 Jun 2019
27	Morgunova L. (amfisbena)	1	13	2	0	2	2149	14 Jun 2019
28	Fiadura D.O. (Galicin)	2	4	2	0	2	6788	13 Jun 2019
29	Vik (GoGGa)	1	1	2	0	2	8642	15 Jun 2019
30	Prokopenko M.G. (Fogs)	1	1	2	0	2	8781	13 Jun 2019
31	Norlin P.L. (Pezza)	1	1	1	1	2	8958	16 Jun 2019
32	Pavlov A.V. (Anton)	1	179	1	0	1	55	13 Jun 2019
33	www W.W. (5252)	1	3	1	0	1	3341	14 Jun 2019
34	Seraklimov (Zomboyashik)	1	8	1	0	1	5446	12 Jun 2019
35	Kugach (kuga14)	1	2	1	0	1	8014	14 Jun 2019
36	Pass (Parasonic)	1	1	1	0	1	12357	13 Jun 2019
37	sabessabes S.S. (sabes)	1	1	1	0	1	12360	16 Jun 2019
38	Gapanovich (drestar1)	0		0	27	27		15 Jun 2019
39	Gavrilov A.M. (AndreqG)	0		0	27	27		15 Jun 2019
40	Vadim Sh.A. (Bystryj_oryol)	0		0	23	23	3997	15 Jun 2019
41	Plotnikov A.V. (Nuance08)	0		0	18	18		13 Jun 2019
42	gargamel (gargamel09876)	0		0	16	16		13 Jun 2019
43	ChrisPi M.J. (Varela507)	0		0	11	11		12 Jun 2019
44	Hernandez N. (nabilhrnandez)	0		0	11	11		12 Jun 2019
45	Gutierrez F. (Thanatos1999)	0		0	11	11		12 Jun 2019
46	Castillo J. (xJosue)	0		0	11	11		12 Jun 2019
47	marin R.J. (somblaugrana)	0		0	11	11		12 Jun 2019
48	Ajvengo (Ajvengo)	0		0	11	11		10 Jun 2019
49	Espinosa J.L. (Luchitoxxx)	0		0	11	11		12 Jun 2019
50	Vejarano R. (rod_ri3)	0		0	11	11		12 Jun 2019
51	Garibaldi J.A. (Nathonus)	0		0	11	11		12 Jun 2019
52	Alad'ev I.Yu. (ilyaalaadev)	0		0	11	11		14 Jun 2019
53	fghgfhgh F.F. (otaky111)	0		0	10	10		14 Jun 2019
54	Arkhandeev (GGW)	0		0	9	9	7725	16 Jun 2019
55	Sheka E.S. (EgorSheka)	0		0	9	9		11 Jun 2019
56	Rodriguez A. (sadboi)	0		0	9	9		12 Jun 2019
57	khripa M.V. (maks777)	0		0	7	7		10 Jun 2019
58	Robinson Y.A. (Yael)	0		0	6	6		11 Jun 2019
59	Chernyshev V.Yu. (Valerups)	0		0	6	6		12 Jun 2019
60	Egorov V.V. (Trizoon)	0		0	6	6		14 Jun 2019
61	belikov A. (aleksey03)	0		0	6	6		14 Jun 2019
62	Vestnikov D.A. (letsstudybegin)	0	64	0	5	5	599	13 Jun 2019
63	Saenko I. (NickValentine)	0		0	5	5		13 Jun 2019
64	Alex G.A. (lunaxuvro)	0		0	5	5		11 Jun 2019
65	Diaz E.S. (TheKingSaul)	0		0	5	5		11 Jun 2019
66	Calderon J.D. (Jei)	0		0	5	5		11 Jun 2019
67	Nemidko (MRLiKoKo)	0		0	5	5		14 Jun 2019
68	Stupar D.D. (stupar)	0		0	5	5		10 Jun 2019
69	Mosyagin A.A. (mosyaginandrey)	0		0	5	5		14 Jun 2019
70	Dmitriev A. (Havr)	0	120	0	4	4	179	10 Jun 2019
71	Selezen' A.N. (Artny)	0	63	0	4	4	557	14 Jun 2019
72	ratbek S.A. (shokan)	0		0	4	4	7724	15 Jun 2019
73	Kyryk Y. (julkrk)	0		0	4	4	8031	14 Jun 2019
74	Skrypnyk M. (mirana1)	0		0	4	4		09 Jun 2019
75	yaroh Y.O. (yliayaroh1)	0		0	4	4		13 Jun 2019
76	Ryzhkina I. (ILONA_RED)	0		0	4	4		14 Jun 2019
77	Petrov A.V. (Artifelse)	0		0	4	4		14 Jun 2019
78	Mikheev I.D. (mikhey)	0		0	3	3	8032	16 Jun 2019
79	Vasileva A. (Vasyanya)	0		0	3	3	8033	16 Jun 2019
80	Ivanov A. (artyomivSQL)	0		0	3	3	8034	16 Jun 2019
81	i L. (Lexa_550)	0		0	3	3		11 Jun 2019
82	Kors M. (Tigrpoghf)	0		0	3	3		14 Jun 2019
83	Yakovlev A.S. (ssCRUSADERss)	0		0	3	3		11 Jun 2019
84	Klochko A. (Enka26)	0		0	3	3		12 Jun 2019
85	M N. (NVM)	0		0	3	3		11 Jun 2019
86	Zhopin (Zhopin)	0		0	3	3		11 Jun 2019
87	Vagapova A.I. (alinashechka)	0		0	3	3		13 Jun 2019
88	pena R.A. (R1rapper14)	0		0	3	3		12 Jun 2019
89	Karpenko (kobalt57)	0		0	3	3		13 Jun 2019
90	Kipernik I.A. (kipernik)	0		0	3	3		14 Jun 2019
91	Yanov V.V. (UserPoint)	0		0	3	3		11 Jun 2019
92	Gulenkin I. (FiSami)	0		0	3	3		14 Jun 2019
93	Uyliia (PocomaxaPo)	0		0	3	3		14 Jun 2019
94	Bagirov E. (bagirov)	0		0	3	3		11 Jun 2019
95	gade P. (Pravalireddy)	0		0	3	3		13 Jun 2019
96	Romanova (Verrrronika)	0		0	3	3		10 Jun 2019
97	Bariev (Barieva)	0		0	3	3		14 Jun 2019
98	Kruglov M.A. (M.Kruglov84)	0		0	3	3		12 Jun 2019
99	rahimov (KinGR)	0		0	3	3		16 Jun 2019
100	stalmakov (alexander_stalmakov)	0		0	2	2		13 Jun 2019
101	lapshin V. (valeraaa)	0		0	2	2		10 Jun 2019
102	Prokopiv N. (ProNik)	0		0	2	2		15 Jun 2019
103	Zabolotsky (colmar)	0		0	2	2		14 Jun 2019
104	Boldyrev G.V. (zuylamer)	0	9	0	1	1	3084	14 Jun 2019
105	Malashenko A.P. (bysidby)	0	1	0	1	1	3977	15 Jun 2019
106	Babenko A.A. (Programist2000)	0		0	1	1	12384	15 Jun 2019
107	Mukhametzhanov (makeinstall)	0		0	1	1		11 Jun 2019
108	Korol'kov D.K. (krlkv)	0		0	1	1		11 Jun 2019
109	Samirkhanova A. (AlinaWell)	0		0	1	1		10 Jun 2019
110	Ursu D. (Dianna-26)	0		0	1	1		13 Jun 2019
111	Bekh S.V. (BekhSergey)	0		0	1	1		15 Jun 2019
112	arauz A.R. (angie29)	0		0	1	1		12 Jun 2019
113	BARIN B.B. (!BARIN!)	0		0	1	1		14 Jun 2019
114	Guschina A.A. (anny_diamond)	0		0	1	1		11 Jun 2019

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References