Last week rating | SQL Exercises

December 18, 01:54 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

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: 15354

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	>Krasnov A.A. (Nutr1k)	21	50	42	0	42	1057	17 Dec 2025
2	Govorov E. (erxaan)	23	37	41	0	41	1717	11 Dec 2025
3	fioletovaya (fioletovaya2)	9	44	14	0	14	1660	17 Dec 2025
4	>Odnokurtsev (AlFochino)	6	6	8	0	8	6644	17 Dec 2025
5	Safronov P.A. (Paulus73)	5	22	7	0	7	3219	17 Dec 2025
6	M (DanilM2304)	4	4	5	3	8	7825	17 Dec 2025
7	ASI (asi_sql)	1	101	4	0	4	240	15 Dec 2025
8	Tkachenko D. (_GUERNIKA_)	3	21	4	0	4	1676	17 Dec 2025
9	Sarkis'yan G. (gennadi_s)	1	199	3	0	3	17	17 Dec 2025
10	Skokov B.S. (leks$$)	3	14	3	0	3	2312	17 Dec 2025
11	Kostomarov A.V. (al29)	1	259	2	0	2	5	16 Dec 2025
12	Boyarskij V.A. (ChronoMorzh)	1	132	2	0	2	139	14 Dec 2025
13	qwer3 Q.Q. (qwer1loh)	1	1	2	0	2	10858	11 Dec 2025
14	Shmelyov L.A. (Shmeliara)	1	5	1	0	1	6883	15 Dec 2025
15	Kanathil Aji S. (SandeepAji)	0		0	21	21	4787	16 Dec 2025
16	Shaternikova D.A. (Shaternikova Dar'ya)	0		0	21	21	5729	14 Dec 2025
17	Naumova A.Yu. (Naumova Anna)	0		0	18	18	5217	15 Dec 2025
18	Mal'tseva A.M. (Mal'tseva A.M.)	0		0	16	16	5392	17 Dec 2025
19	Sikorskij (Marti_9)	0		0	14	14	5575	13 Dec 2025
20	Saprykina E.D. (Elena_sap)	0		0	14	14	5576	12 Dec 2025
21	Zhukova A.E. (arlgnn)	0		0	14	14	5579	12 Dec 2025
22	Davletkina A.S. (davletik)	0		0	14	14	5580	17 Dec 2025
23	Khechikyan Zh.A. (HannaAlis)	0		0	13	13	5730	15 Dec 2025
24	Petrov Y. (YuriPetrov)	0	197	0	12	12	37	17 Dec 2025
25	Vukolov A. (al.vuk)	0	79	0	12	12	346	17 Dec 2025
26	Smagina (kiki555)	0		0	12	12	5916	12 Dec 2025
27	Gomozova (Natali_gomozova)	0		0	12	12	5917	12 Dec 2025
28	Grib K.D. (kseniagrib)	0		0	12	12	5918	17 Dec 2025
29	Trots (divan_stulov)	0		0	12	12	5919	15 Dec 2025
30	ACHAMBATTU D.A. (DA-2002)	0		0	11	11	6131	15 Dec 2025
31	Romanov (qaz12345678)	0		0	11	11	6132	13 Dec 2025
32	Rekalo A. (rekalo_alina)	0		0	11	11	6133	17 Dec 2025
33	debt43097 (debt43097)	0		0	11	11	6135	15 Dec 2025
34	Zotov M.P. (zotovmp13)	0		0	11	11	6136	16 Dec 2025
35	gee A. (aylin_gee)	0		0	11	11	6137	16 Dec 2025
36	Topin P.A. (ProkhorBane)	0		0	11	11	9617	12 Dec 2025
37	Arkhipova A.V. (Rishaoa)	0		0	11	11		11 Dec 2025
38	Klevzhits (dreamy1213)	0		0	11	11		12 Dec 2025
39	QQ Q.Q. (QQQQQ69)	0		0	10	10		11 Dec 2025
40	Kuritsyn V.N. (ValNick)	0	151	0	9	9	140	15 Dec 2025
41	Gun'kin V.N. (Vod1chka)	0		0	9	9	6572	16 Dec 2025
42	Kononova E.A. (dschdlul)	0		0	9	9	6573	14 Dec 2025
43	Ataev M.A. (Vampire06)	0		0	9	9	6574	15 Dec 2025
44	F L.I. (Linches_13)	0		0	9	9		12 Dec 2025
45	Rudneva O.S. (Oly22)	0		0	9	9		11 Dec 2025
46	Romanenko N.N. (klixen)	0		0	8	8	6761	15 Dec 2025
47	Davletova A.S. (aeidln)	0		0	7	7	7037	17 Dec 2025
48	Li E. (elli3107)	0		0	6	6	7350	16 Dec 2025
49	Lukin S.O. (serafim797)	0		0	4	4	8709	12 Dec 2025
50	Pulyakhina M.V. (ararararar)	0		0	4	4	8710	12 Dec 2025
51	Sal'nikov P. (gfdtk1993)	0		0	4	4	8711	15 Dec 2025
52	Polyakov V.M. (rock_4)	0	148	0	3	3	142	17 Dec 2025
53	Artemenkov P. (39525D)	0	1	0	3	3	8658	15 Dec 2025
54	Rakib (rakibshanto)	0		0	3	3	9618	17 Dec 2025
55	Malyshev A.E. (andreyql_)	0		0	3	3	9619	16 Dec 2025
56	Kim A.M. (sashaKATA)	0		0	3	3		11 Dec 2025
57	Kononova E.A. (liskfsosiska)	0		0	2	2	11117	14 Dec 2025
58	Dolgikh V.D. (fisheryy)	0		0	2	2	11118	17 Dec 2025
59	Pulyakhina M.V. ('yvartsloalovia)	0		0	1	1	15349	13 Dec 2025
60	Eremin S.A. (noprob)	0		0	1	1	15350	13 Dec 2025
61	Tuala (Tuala)	0		0	1	1	15351	16 Dec 2025
62	ff F.F. (fyf)	0		0	1	1	15352	14 Dec 2025
63	Ranjhan R.K. (RK2026)	0		0	1	1	15353	15 Dec 2025
64	Rublev R.I. (LinkEvr)	0		0	1	1	15354	16 Dec 2025

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References