Last week rating | SQL Exercises

January 12, 10:33 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.
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Ratings

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  • 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

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SQL exercises

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  • 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)

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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: 15325

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	Safronov P.A. (Paulus73)	9	51	18	1	19	1265	11 Jan 2026
2	>fioletovaya (fioletovaya2)	7	86	17	0	17	641	12 Jan 2026
3	P I.*. (IrinaPetr)	9	29	14	0	14	2435	11 Jan 2026
4	Palasukhin D.S. (Nitrinos)	3	37	9	0	9	1323	11 Jan 2026
5	Sarkis'yan G. (gennadi_s)	2	201	6	0	6	16	11 Jan 2026
6	Vdovin S. (Rujan)	2	143	5	0	5	147	11 Jan 2026
7	Lakalov D. (Meilleur_NG)	3	80	5	0	5	469	11 Jan 2026
8	Vasenko (wsl*)	1	1	2	0	2	11086	11 Jan 2026
9	Zryumov E.A. (Zryumov)	1	9	1	0	1	2124	09 Jan 2026
10	Penkovskaia (iLintu)	1	6	1	0	1	3000	09 Jan 2026
11	Klenin (kostyllSQL)	1	1	1	0	1	7076	12 Jan 2026
12	maze T.P. (jigoroku)	1	1	1	0	1	14826	06 Jan 2026
13	Kovalenko A.E. (problemsolver9095)	0		0	24	24		08 Jan 2026
14	Goreva I.M. (Goreva Irina)	0		0	21	21		09 Jan 2026
15	Ryabov A. (Slavander)	0		0	19	19	8680	11 Jan 2026
16	Betelgeuse (Avebetelgeuse)	0		0	17	17		06 Jan 2026
17	Makarchuk D. (xx.darja)	0		0	13	13	5723	11 Jan 2026
18	Tarasov I.E. (Dyce)	0		0	12	12		07 Jan 2026
19	Tikhomirova M. (ahwjbfie)	0		0	10	10		09 Jan 2026
20	Yastrebov D.D. (Yakimori)	0		0	8	8		08 Jan 2026
21	Dron D.D. (Dron1234)	0		0	6	6		11 Jan 2026
22	Livshits (@Valeriy)	0		0	4	4	8681	12 Jan 2026
23	Polukhin A. (aappaa)	0		0	4	4	15325	10 Jan 2026
24	Kuz'mina A.M. (pupeza872)	0		0	3	3	9586	11 Jan 2026
25	Khokhlova (ElizabethElizabeth)	0		0	3	3		07 Jan 2026
26	Lazareva E. (lea_22)	0	93	0	2	2	271	11 Jan 2026
27	Ag V. (Vl_78)	0		0	2	2	11087	12 Jan 2026
28	Nazarov (Ilya_Nazarov)	0		0	2	2	11088	12 Jan 2026
29	Str D.A. (stdimchik)	0		0	2	2	11089	12 Jan 2026
30	Stusyak S.I. (justsmn)	0		0	2	2		09 Jan 2026
31	Simonov E. (matsui)	0		0	1	1		09 Jan 2026

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