Last week rating | SQL Exercises

October 19, 11:06 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: 13895

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	Timonin D.E. (DmiTim)	18	47	31	0	31	1003	18 Oct 2026
2	>Sh S. (junopark1)	16	59	30	0	30	1151	19 Oct 2026
3	Tkachenko D. (_GUERNIKA_)	8	115	17	1	18	210	16 Oct 2026
4	Gitinomagomedov (gmansur88)	3	73	8	0	8	439	19 Oct 2026
5	>Lizunov K.A. (KirillLizunov)	4	4	5	1	6	6324	18 Oct 2026
6	Shibaev (saah)	1	119	4	27	31	229	19 Oct 2026
7	Krasovskij E.A. (pegoopik)	1	282	4	0	4	1	19 Oct 2026
8	Simonyan D. (Nnumby)	3	5	4	0	4	3186	16 Oct 2026
9	Gusev A.O. (NowOrNever)	1	69	3	0	3	413	17 Oct 2026
10	Zheludkov S. (zhsvyach)	2	2	2	12	14	4041	19 Oct 2026
11	Safronov P.A. (Paulus73)	1	160	2	0	2	117	15 Oct 2026
12	Vorob'ev N.D. (verculumn)	1	2	2	0	2	7793	12 Oct 2026
13	Selin R. (racecelin239)	1	1	2	0	2	8825	14 Oct 2026
14	O (janeoosql)	1	30	1	0	1	1432	16 Oct 2026
15	Marshakov V.V. (vityunyaKMV)	1	1	1	0	1	13876	13 Oct 2026
16	Kivilev A. (Kiart)	1	1	1	0	1	13894	17 Oct 2026
17	Salikhov R.A. (Ruzik707)	0		0	32	32	4894	18 Oct 2026
18	Terent'eva (fukkatsumi_)	0		0	13	13	5298	18 Oct 2026
19	Moiseeva U.D. (melkijprog)	0		0	6	6		13 Oct 2026
20	Williams B. (BW)	0	204	0	4	4	36	16 Oct 2026
21	Usmanov (iusmanovvv)	0		0	3	3	8096	18 Oct 2026
22	beliy A.V. (artemrpo)	0		0	3	3		16 Oct 2026
23	Utkin (almazz_3)	0		0	3	3		16 Oct 2026
24	123 1.1. (qwer1234_C)	0		0	3	3		16 Oct 2026
25	Rybkin A.A. (v01ger)	0		0	3	3		16 Oct 2026
26	Akhmedov M.M. (LAMBo?lega)	0		0	3	3		16 Oct 2026
27	kn (mmm0101)	0		0	3	3		16 Oct 2026
28	Sav H. (Master83_65)	0		0	3	3		14 Oct 2026
29	ss A.S. (SashaSS)	0		0	2	2	9476	18 Oct 2026
30	hydra (bxnf1re)	0		0	2	2		16 Oct 2026
31	Faras J... (Jenissa)	0		0	1	1	13895	17 Oct 2026
32	Adolf A.A. (gfyftfghefdsfdfd)	0		0	1	1		16 Oct 2026
33	Sorokina (XaNiX)	0		0	1	1		12 Oct 2026

Home
Week news

Certification

SQL exercises

Forums

Ratings

HELP

Performance

Profile
References