Last week rating | SQL Exercises

May 29, 14:23 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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SQL exercises

  • SELECT (learning stage)
  • SELECT (learning stage,
      choosing DBMS)
  • SELECT (rating stages)
  • DML 
  • Modelling of data
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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: 11691

No	surname	n_sel	sel_all	sel_scores	dml_scores	scores	rating	last_visit
1	Rakhmatullin (Ranil)	10	61	19	0	19	556	29 May 2017
2	>Savin A.Yu. (mirovingin)	12	27	19	0	19	1430	29 May 2017
3	Dudochkin A. (dandr)	7	44	14	0	14	1302	29 May 2017
4	>Plugin V. (Basilik)	8	33	13	0	13	1112	29 May 2017
5	Kartashov 5.5. (mimi789456)	8	30	13	0	13	1915	29 May 2017
6	Escal Y. (NotASocialist)	6	51	12	0	12	843	26 May 2017
7	Komin (Komin)	6	44	12	0	12	974	29 May 2017
8	Boyarskij D. (hardison)	9	33	12	0	12	1235	29 May 2017
9	>Indeev A.V. (indeev)	6	27	10	0	10	1442	29 May 2017
10	Denisova E.V. (alisket)	5	5	7	0	7	5539	24 May 2017
11	lee (donlee460)	4	28	5	0	5	1477	27 May 2017
12	>Chukanov V.S. (VSC)	4	21	5	0	5	1735	29 May 2017
13	Kostomarov A.V. (al29)	1	229	4	0	4	10	29 May 2017
14	lazareva E. (lea_22)	2	82	4	0	4	342	29 May 2017
15	>Voitovs A. (Lesha.V)	1	72	4	0	4	398	29 May 2017
16	>Itkin I.L. (joseph_itkin)	3	48	4	0	4	875	28 May 2017
17	Lyadov S.A. (Serg Alex Lad)	4	26	4	0	4	1209	29 May 2017
18	Isavnina (swordy2014)	2	46	4	0	4	1238	29 May 2017
19	Volkov S. (Wolf778)	3	21	4	0	4	3473	26 May 2017
20	Nikul'nikov A.D. (solbrain)	2	3	4	0	4	5441	26 May 2017
21	Vylegzhanina (Jen_210896)	2	5	4	0	4	5580	24 May 2017
22	Polyakov A.I. (Alexander Green)	3	3	4	0	4	7196	27 May 2017
23	Shustov V.V. (shustovvlad)	2	20	3	1	4	1708	29 May 2017
24	Doschenko V.N. (mcrain)	1	179	3	0	3	32	28 May 2017
25	Chernov D. (Kursist)	2	134	3	0	3	131	29 May 2017
26	V (Tenyva)	2	111	3	0	3	199	28 May 2017
27	Murav'yova L.A. (ladika)	3	21	3	0	3	1380	29 May 2017
28	P_ N. (no_more)	1	38	2	23	25	1090	28 May 2017
29	L'vov S.V. (simba_81)	1	80	2	0	2	347	25 May 2017
30	Leschyov S.V. (SPMV)	2	81	2	0	2	348	25 May 2017
31	Ushakov G.A. (genush)	1	52	2	0	2	754	24 May 2017
32	V (Voltavi)	1	40	2	0	2	1023	28 May 2017
33	Grigor'ev D.E. (merzavcheg)	1	25	2	0	2	1482	25 May 2017
34	Cglcz6 Y. (Cglcz6)	1	1	2	0	2	4765	26 May 2017
35	Kuvshinova K.V. (tobusis)	2	6	2	0	2	5417	23 May 2017
36	Maksimenko (dedich1.0)	1	4	1	1	2	2915	24 May 2017
37	Chebykin D.N. (GriGrim)	1	200	1	0	1	28	22 May 2017
38	Kashevarov A.V. (A.Kashevarov)	1	71	1	0	1	480	24 May 2017
39	Vasilevskaya E.A. (kattiks)	1	7	1	0	1	4536	28 May 2017
40	Z M.A. (WinbringerV)	1	6	1	0	1	5374	23 May 2017
41	aljdflkasf A.A. (qwerfasdf)	1	6	1	0	1	5386	25 May 2017
42	Dima K.R. (finr1r)	1	3	1	0	1	5829	26 May 2017
43	Stropysh S. (strs)	1	4	1	0	1	7200	22 May 2017
44	Bilalova (AlinaBilalova)	1	1	1	0	1	11673	23 May 2017
45	Sevostyanov (Denis95174)	1	1	1	0	1	11674	24 May 2017
46	Nevskaya Kh.A. (nev_20)	1	1	1	0	1	11675	23 May 2017
47	Oushen S. (Nastadmi)	1	1	1	0	1	11689	27 May 2017
48	Truant (Zampano)	0		0	25	25	4706	27 May 2017
49	Palagnyuk D.A. (NittyMonkey)	0		0	23	23		26 May 2017
50	Klimentionok (Alexej_klim)	0		0	23	23		29 May 2017
51	Volkov S. (ctacukoc)	0		0	18	18		29 May 2017
52	Kan A. (Alexandr4444)	0	1	0	17	17	4008	25 May 2017
53	Kononovich D.A. (BlackTJ)	0		0	11	11	5660	29 May 2017
54	Olsh (MargoOlsh)	0		0	11	11		24 May 2017
55	Kostenko A.I. (Kostenko_Aleksandr)	0		0	11	11		24 May 2017
56	Zhumagulov (DoubLe-)	0		0	9	9	5309	28 May 2017
57	Perchina V. (fidgi)	0		0	9	9	11690	29 May 2017
58	Antushev Yu.D. (ShadeofAngel)	0		0	9	9		27 May 2017
59	Belkevich A.L. (Leniv)	0		0	9	9		29 May 2017
60	Eliseenko A.A. (Alex_360)	0		0	9	9		23 May 2017
61	Korolyov A.V. (avk13)	0		0	9	9		25 May 2017
62	Kuznetsova E.R. (_Jane_romanovna)	0		0	9	9		24 May 2017
63	Shakhnovich E.N. (Evgen_93)	0		0	8	8	5465	29 May 2017
64	Subbotin I.A. (stepka_korablev)	0		0	8	8		26 May 2017
65	Kozlova M. (Auriga_dorado)	0	74	0	7	7	357	29 May 2017
66	Skripko M.A. (neva26art)	0		0	6	6	5933	29 May 2017
67	Baldin T.V. (FoxCS)	0		0	6	6	11688	29 May 2017
68	Korolev (CK44)	0		0	6	6	11691	29 May 2017
69	Zaytseva Y. (ZUL7)	0		0	5	5	6604	28 May 2017
70	Yamschikova L.I. (Larisa81)	0		0	5	5	6605	28 May 2017
71	Eparskij M. (Mikhail_02)	0		0	5	5	8353	29 May 2017
72	lynnneal D.P. (lynnneal)	0		0	5	5		24 May 2017
73	Mityurin V. (mitvol)	0	84	0	4	4	346	25 May 2017
74	Ivanov (Vasisred)	0		0	4	4		24 May 2017
75	Rzeplinski W. (wojtekr)	0		0	4	4		23 May 2017
76	egerg W.G. (ssergeyy)	0		0	4	4		23 May 2017
77	Shaternik V. (regnarte)	0		0	4	4		26 May 2017
78	Surname (danko_)	0		0	3	3	7510	28 May 2017
79	Kudlay E.S. (John Marley)	0		0	3	3	7511	28 May 2017
80	Petrov A.F. (Aghanim)	0		0	3	3	7512	27 May 2017
81	Eugene S.K. (SemenovE21QQ)	0		0	3	3	7513	28 May 2017
82	Papaxristou (Kotsadoros)	0		0	3	3	7514	29 May 2017
83	Golovach G. (Hanna_Kru)	0		0	3	3		24 May 2017
84	Kobylyanets I.A. (kobivan)	0		0	3	3		26 May 2017
85	Azarov A.M. (ar4ifan)	0		0	3	3		25 May 2017
86	Apalikov (Kaz_888)	0		0	3	3		26 May 2017
87	Tokmyanina T.I. (Chedi Daan)	0		0	3	3		29 May 2017
88	junior J.B. (boco)	0		0	3	3		26 May 2017
89	Nalivaiko G.M. (mamaToma007)	0		0	3	3		26 May 2017
90	Ales'ko D. (Dmitrij Ales'ko)	0		0	3	3		26 May 2017
91	Okan (19Dim_Ok73)	0		0	3	3		26 May 2017
92	Terekhov K. (KTerekhov)	0		0	3	3		23 May 2017
93	Golovnya E. (quantum_cupcake)	0		0	3	3		25 May 2017
94	Perov S.E. (st1nker)	0		0	3	3		25 May 2017
95	Rabadangadzhiev M.M. (Murtazali)	0		0	3	3		25 May 2017
96	Kisel' (miruvlik)	0		0	3	3		22 May 2017
97	Ziatdinov A. (camelot)	0		0	3	3		23 May 2017
98	Kolesnikov (hard)	0	121	0	2	2	175	29 May 2017
99	koala1965 (koala_1965)	0		0	2	2		25 May 2017
100	Larionov P.Yu. (Solitarius)	0		0	2	2		29 May 2017
101	Komelin I. (komelin)	0		0	2	2		25 May 2017
102	Samov S. (qwerty1712)	0		0	2	2		29 May 2017
103	Petrenko (PTRsm)	0		0	2	2		26 May 2017
104	123 (Alina123)	0		0	2	2		29 May 2017
105	Zimenko V.F. (alan1)	0	108	0	1	1	198	28 May 2017
106	Koudriavtseva (Larissa)	0	1	0	1	1	3001	28 May 2017
107	Tajsin Z.D. (Zudeelo_1)	0		0	1	1		26 May 2017
108	Grigoryan (Khonda 8)	0		0	1	1		23 May 2017
109	Ferdimonova Y.V. (Ferdimonova)	0		0	1	1		23 May 2017
110	IVan B. (shtolce)	0		0	1	1		25 May 2017
111	Kokhan V.A. (Volcheslav)	0		0	1	1		26 May 2017
112	korenov K.K. (roker228)	0		0	1	1		26 May 2017
113	Starlight (Starlight Cross)	0		0	1	1		25 May 2017
114	Pereverzev A.Yu. (Zarechniy37)	0		0	1	1		22 May 2017
115	Erdneev A.Yu. (Norchine)	0		0	1	1		23 May 2017
116	Tsibul'skij I.S. (rachello)	0		0	1	1		22 May 2017
117	Pajlak (slava12345)	0		0	1	1		25 May 2017
118	Dsouza A.F. (Allwynnn)	0		0	1	1		26 May 2017
119	Mammadli K. (KananM)	0		0	1	1		24 May 2017

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