Last week rating | SQL Exercises

August 03, 18:01 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
  • 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

уборка офисов
cleancheap.ru
Ворота гаражные рольставни http://www.avtovorota-ufa.ru
avtovorota-ufa.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: 12638

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	>Rodionov S. (oldos)	13	67	29	0	29	919	03 Aug 2020
2	>Lakalov D. (Meilleur_NG)	14	32	19	0	19	2359	03 Aug 2020
3	>Gur'yanov D.A. (Dmitro94)	13	13	17	0	17	4612	03 Aug 2020
4	Kovelman (jjokker)	10	58	14	0	14	876	03 Aug 2020
5	>Markov (yaroslavv)	7	8	9	1	10	5130	03 Aug 2020
6	Lukin (LedyanojSnegovik)	6	6	8	27	35	3073	29 Jul 2020
7	Ryabov V.E. (vlal)	6	6	8	0	8	5893	03 Aug 2020
8	>Yartsev Yu. (Yury66)	3	103	7	0	7	238	03 Aug 2020
9	Matveev M. (Matveev Maksim)	2	23	5	0	5	3322	01 Aug 2020
10	Novikov (PNA921)	2	105	4	0	4	253	01 Aug 2020
11	Smolyar P.M. (smolyar)	1	71	4	0	4	515	31 Jul 2020
12	Ladanov N.V. (XAKEP_BBC)	3	51	4	0	4	983	02 Aug 2020
13	tatkasan (tatkasan)	2	49	3	0	3	882	01 Aug 2020
14	Kotanskij K.K. (Kotichek)	2	2	3	0	3	8063	29 Jul 2020
15	Kuz'mitskij Ya.O. (YaroslavYaroslav)	1	61	2	1	3	1112	27 Jul 2020
16	Varenikov D.M. (Dmitriy Varenikov)	1	217	2	0	2	18	03 Aug 2020
17	Lukov D.R. (Gendalf)	1	112	2	0	2	232	03 Aug 2020
18	Petrova K.O. (Lanelia)	1	36	2	0	2	1277	27 Jul 2020
19	Sorin A. (Soral)	2	2	2	0	2	9108	03 Aug 2020
20	Komarov A.N. (Shveda Saulya)	1	133	1	0	1	129	03 Aug 2020
21	Tarshin S.N. (tsn)	1	139	1	0	1	156	30 Jul 2020
22	V (Tenyva)	1	112	1	0	1	222	02 Aug 2020
23	Fedorovich E.Yu. (whoops123)	1	1	1	0	1	12582	29 Jul 2020
24	>onykienko M. (margovyn)	1	1	1	0	1	12636	03 Aug 2020
25	Zelentsov I.A. (Overcomzi)	0		0	27	27	3907	03 Aug 2020
26	Makhmazaiitov K.D. (Kufa)	0		0	27	27	7939	03 Aug 2020
27	Tran A. (trananhtu1998)	0		0	27	27		31 Jul 2020
28	Sviyazova (LidaSv)	0		0	22	22		31 Jul 2020
29	Strannaya (learner25)	0		0	18	18		29 Jul 2020
30	Men'shikova M. (Marina24)	0		0	17	17	5162	03 Aug 2020
31	Volkov (Kai Hansen)	0		0	17	17		30 Jul 2020
32	Astashenkov M. (phys_master)	0		0	17	17		31 Jul 2020
33	Chaldanov (aleksei_chald)	0		0	15	15		31 Jul 2020
34	Ushakov N.V. (donutWorry)	0		0	11	11		03 Aug 2020
35	Semishin (SVitya)	0		0	9	9	5817	03 Aug 2020
36	Leoshko A.V. (kotik_schredingera)	0		0	9	9	6550	03 Aug 2020
37	Osipov (Osip1)	0		0	9	9	7260	02 Aug 2020
38	Talpakova U. (Umutik)	0		0	9	9		02 Aug 2020
39	Volkov (bakaz)	0		0	9	9		31 Jul 2020
40	qwe Q.Q. (pavelkamey)	0		0	9	9		01 Aug 2020
41	Mezhlumyan A.A. (annvtmn)	0		0	8	8		29 Jul 2020
42	D (keuht)	0		0	7	7		29 Jul 2020
43	oin T. (o1nta)	0		0	7	7		01 Aug 2020
44	Prokopovich І.V. (IrinaFFFF)	0		0	6	6	6549	03 Aug 2020
45	Khadyka T.V. (tatyanahadyka)	0		0	6	6		02 Aug 2020
46	Korsuk K.V. (pinteko)	0		0	6	6		01 Aug 2020
47	Khlynov M. (KhlynSQL)	0		0	5	5	7261	03 Aug 2020
48	Suvorin I.A. (learntocode)	0		0	5	5	7262	03 Aug 2020
49	didyk T.R. (dtr94)	0		0	5	5	12638	03 Aug 2020
50	Sadykova D. (daryasarya1298)	0		0	5	5		02 Aug 2020
51	Serzhan (soa212)	0		0	4	4		30 Jul 2020
52	Osadchaya D.S. (skatinski)	0	1	0	3	3	4113	03 Aug 2020
53	Khvorostyan N.P. (Alux567)	0		0	3	3	8249	03 Aug 2020
54	vadman (vadman)	0		0	3	3	8250	02 Aug 2020
55	Ovchinnikov A.V. (Kakoi-to_chelovek)	0		0	3	3	8251	03 Aug 2020
56	FFF F.F. (zaykka)	0		0	3	3	8252	03 Aug 2020
57	Denisov S.V. (iamdenisovsv)	0		0	3	3	8253	03 Aug 2020
58	Teryaev A.A. (MornaMeoi)	0		0	3	3		02 Aug 2020
59	Yashina Yu.V. (yash1na)	0		0	3	3		01 Aug 2020
60	apes (apslm)	0		0	3	3		28 Jul 2020
61	Seregin N. (Seregin N)	0		0	3	3		30 Jul 2020
62	Gusarova V. (gusarova.v)	0		0	3	3		03 Aug 2020
63	Evtushenko (defaultpseudo)	0		0	3	3		30 Jul 2020
64	Kudryashova (ksu0502)	0		0	3	3		01 Aug 2020
65	Stepanenko A. (Ksart)	0		0	3	3		28 Jul 2020
66	klesti (klestidroid)	0		0	3	3		29 Jul 2020
67	Kuznetsova (MrSmithKiev)	0		0	3	3		31 Jul 2020
68	Ivashin (sderser)	0		0	2	2	9164	01 Aug 2020
69	Kudryashova N.A. (enaden)	0		0	2	2		28 Jul 2020
70	Chekanovkin A.E. (bardinal)	0		0	2	2		29 Jul 2020
71	Gurzhii N. (Shary)	0		0	2	2		30 Jul 2020
72	Orel O. (OlgaO83)	0		0	2	2		31 Jul 2020
73	Nesterov S.V. (NevaSV)	0		0	2	2		29 Jul 2020
74	Filimonova N.D. (Weaver322)	0		0	2	2		30 Jul 2020
75	Kudasov (tohatoha)	0		0	2	2		29 Jul 2020
76	nikuradze L.L. (maayqwert)	0		0	2	2		03 Aug 2020
77	Petukhov I.A. (Cheeroki)	0		0	1	1	12634	03 Aug 2020
78	Sokolov (Sol-III)	0		0	1	1	12635	02 Aug 2020
79	pessimist (pessim1st)	0		0	1	1	12637	03 Aug 2020
80	Trout L. (loredana98)	0		0	1	1		31 Jul 2020
81	Yonson (Timido)	0		0	1	1		29 Jul 2020
82	Popov V. (Akronim)	0		0	1	1		31 Jul 2020
83	Sadkovskaya E. (EkaterinaSadkovskaya)	0		0	1	1		30 Jul 2020
84	Svetlov A.M. (s86v)	0		0	1	1		03 Aug 2020
85	badzy V.V. (badz99)	0		0	1	1		28 Jul 2020
86	Ivanov (Omg_)	0		0	1	1		02 Aug 2020
87	Syzrantsev N. (Diego Brando)	0		0	1	1		02 Aug 2020
88	Ivanova L. (Lifeis)	0		0	1	1		31 Jul 2020
89	Nikolaev (SEREJATW)	0		0	1	1		03 Aug 2020

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References