Last week rating | SQL Exercises

October 26, 11:30 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: 13909

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	Gitinomagomedov (gmansur88)	10	83	21	0	21	364	23 Oct 2026
2	Brid I.B. (Brid)	10	10	14	0	14	5152	19 Oct 2026
3	Sh S. (junopark1)	5	64	11	24	35	723	26 Oct 2026
4	Timonin D.E. (DmiTim)	4	51	8	0	8	893	19 Oct 2026
5	Zheludkov S. (zhsvyach)	4	6	7	0	7	3297	22 Oct 2026
6	Mahmoud (developer1086)	4	4	5	0	5	6608	24 Oct 2026
7	Sarkis'yan G. (gennadi_s)	1	227	4	0	4	13	26 Oct 2026
8	Shibaev (saah)	1	120	4	0	4	223	22 Oct 2026
9	Tsybin A.V. (magicdragon)	2	48	4	0	4	1118	23 Oct 2026
10	O (janeoosql)	2	32	4	0	4	1384	22 Oct 2026
11	Skibin V.V. (SQL_vvs)	2	33	3	0	3	1550	25 Oct 2026
12	Gabrielyan G.A. (larenak11)	2	2	3	0	3	7432	20 Oct 2026
13	Drozdov I.D. (igor_sausage)	1	8	2	0	2	5901	21 Oct 2026
14	Kolosov K. (triplex628)	2	2	2	0	2	8889	23 Oct 2026
15	Tim V. (VladTim)	2	2	2	0	2	9286	21 Oct 2026
16	Gusev A.O. (NowOrNever)	1	70	1	0	1	406	24 Oct 2026
17	Gorin (GorinKV)	1	1	1	0	1	13877	22 Oct 2026
18	Skrylyova (Anastasia555_55_5)	1	1	1	0	1	13909	25 Oct 2026
19	Lebedev G.A. (xeGalaxy)	0		0	31	31	7291	26 Oct 2026
20	Andreev K.A. (sun1zu)	0		0	21	21	4519	25 Oct 2026
21	Chirikova N.V. (NataliCh)	0		0	13	13	5300	26 Oct 2026
22	Gaben E. (emsig)	0		0	13	13		19 Oct 2026
23	Ryzhov N.A. (PEP_8)	0		0	11	11		23 Oct 2026
24	Maslennikova V.O. (valya.maslennikova)	0		0	6	6	6439	24 Oct 2026
25	Sav H. (Master83_65)	0		0	6	6		25 Oct 2026
26	Ignashevich M.A. (draago)	0		0	4	4		22 Oct 2026
27	Pokhvischev N. (Nakkaaa)	0		0	4	4		22 Oct 2026
28	Zimin (Rikizq)	0		0	4	4		23 Oct 2026
29	Metreveli G. (gio777)	0		0	3	3	8105	24 Oct 2026
30	Grishunin (he11rage)	0		0	3	3	8106	25 Oct 2026
31	Man'ko A.M. (alisasa)	0		0	3	3	9488	25 Oct 2026
32	uk S.F. (Usre213)	0		0	3	3		22 Oct 2026
33	hydra (bxnf1re)	0		0	2	2		22 Oct 2026
34	Ivanov I.I. (asd273)	0		0	2	2		20 Oct 2026
35	Solis D.I. (silenced)	0		0	2	2		22 Oct 2026
36	Utkin (almazz_3)	0		0	1	1		25 Oct 2026
37	Adolf A.A. (gfyftfghefdsfdfd)	0		0	1	1		22 Oct 2026
38	123 1.1. (qwer1234_C)	0		0	1	1		23 Oct 2026
39	Belov A. (artem444)	0		0	1	1		22 Oct 2026
40	yakovleva (cheremuhaha)	0		0	1	1		21 Oct 2026
41	Chastova E.A. (Kate44)	0		0	1	1		23 Oct 2026
42	Kolbaev (Veaablok)	0		0	1	1		22 Oct 2026

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References