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March 10, 19:49 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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Top 100	Candidates How the rating position is calculated
Involved in rating: 11392 Involved in second stage rating: 2099

No	Person	Number of Sel_ex	Last_Sel	Number of DML_ex	Scores	Days	Days_2	Days_3	S_3	LastSolved	LastVisit
1	Karasyova N.V. (vlksm)¹	165	164	22	406	1400	127.448	94.252	75	06 Mar 2010	10 Mar 2010
2	Kreslavskij O.M. (Arcan)¹	165	164	22	406	1131	119.143	95.897	75	06 Mar 2010	10 Mar 2010
3	Zotov P.G. (Ozzy)¹	164	164	22	403	725	199.850	211.373	75	05 Mar 2010	10 Mar 2010
4	Yatsuk A.A. (Faust_zp)¹	164	251	22	405	1093	121.912	95.355	74	01 Feb 2010	02 Mar 2010
5	>Drozdkov A.N. (anddros)⁵	161	132	22	397	652	8.257	8.437	66	10 Mar 2010	10 Mar 2010
6	Sal'nikov S.A. ($erges)¹	160	162	22	393	724	5.981	5.910	65	19 Feb 2010	10 Mar 2010
7	Umrikhina E.V. (Umrikhina)¹	150	251	22	372	488	41.244	47.651	61	25 Aug 2009	29 Sep 2009
8	Dubinskij A.V. (_yizraor)⁸	158	155	22	388	644	67.184	31.908	57	04 Mar 2010	10 Mar 2010
9	Senkevich S.V. (GreyC)¹	133	251	21	337	612	57.718	26.238	41	07 Oct 2009	01 Jan 2010
10	Seleznyov A.S. (Artyom S.)¹	130	251	21	329	444	47.221	34.492	41	25 Jan 2009	03 Mar 2009
11	Tarasov D.B. (Gavrila)¹⁰	151	164	22	366	1656	67.865	35.842	38	09 Mar 2010	10 Mar 2010
12	Nikotin V.M. (@Nikotin)¹	134	251	21	334	471	8.335	3.704	35	11 Dec 2009	04 Mar 2010
13	Bojko D.M. (Angellore)¹³	151	140	22	361	941	805.616	135.827	33	05 Mar 2010	09 Mar 2010
14	Pechatnov V.V. (pvv)¹	142	18	21	345	845	36.963	19.888	33	10 Feb 2010	07 Mar 2010
15	Murashkin I.V. (lepton)¹	126	251	21	314	1139	69.439	58.709	32	05 May 2009	14 Dec 2009
16	Orlov M.V. (Eagleoff)¹⁵	150	162	22	361	687	47.274	20.549	30	05 Mar 2010	10 Mar 2010
17	Shindin A.V. (AlShin)¹⁰	142	152	21	343	498	26.251	418.630	30	28 Feb 2010	09 Mar 2010
18	Mullakhanov R.Kh. (rem)⁹	136	251	22	334	649	14.598	20.041	29	20 Jun 2009	02 Feb 2010
19	Anisimov D. (danilko)¹³	139	160	22	332	32	12.700	9.542	28	12 Aug 2009	17 Aug 2009
20	>Lyubchenko V.A. (IAS56)⁶	134	48	22	325	1283	654.450	138.580	23	10 Mar 2010	10 Mar 2010
21	Derzhal'tsev V.A. (MadVet)⁷	120	251	21	300	1715	60.690	28.209	23	26 Dec 2009	26 Dec 2009
22	Sukhnev D.A. (mz)²²	148	164	22	351	1335	49.999	10.422	20	06 Mar 2010	10 Mar 2010
23	Golubin R.S. (Roman S. Golubin)³	123	251	21	305	1413	93.125	58.691	20	01 Jul 2009	21 Dec 2009
24	Kudryakov A.I. (AKudrakov)¹⁹	144	152	22	342	757	101.696	52.909	18	05 Feb 2010	10 Mar 2010
25	Nikolaenko A.V. (Shadow77)¹²	136	251	22	328	762	89.501	13.728	17	13 Sep 2009	09 Nov 2009
26	Vas'kov E.V. (Johan)²	136	251	22	326	1231	227.326	304.509	15	01 Dec 2009	22 Jan 2010
27	Egorov A.B. (ABEgorov)²⁰	144	140	22	345	752	15.838	8.506	14	26 Feb 2010	26 Feb 2010
28	Martynyuk (Wiedzmen)²¹	137	251	22	330	292	91.603	24.179	14	28 Dec 2009	22 Jan 2010
29	Soldatenkov Yu.S. (SolYUtor)²	118	251	21	294	819	22.448	4.954	14	14 Aug 2008	06 Dec 2009
30	Donskikh A.V. (Ridan)²⁸	136	160	22	323	630	196.484	34.976	13	26 Nov 2009	05 Mar 2010
31	Belogurova K. (Katy_Ekb)¹⁹	113	251	21	285	552	10.640	3.593	13	27 Nov 2008	27 Feb 2010
32	>Dvoryaninov V.A. (Valdaj)³²	141	162	22	333	267	58.246	76.049	11	10 Mar 2010	10 Mar 2010
33	Vojnov P.E. (paparome)¹	127	251	22	304	1470	3.135	.212	11	02 Sep 2009	16 Dec 2009
34	iglbeat (iglbeat)²³	117	251	21	291	360	34.485	14.813	11	08 Aug 2008	25 Aug 2008
35	Glazyrin D.S. (glassman)²⁴	140	251	22	333	597	260.202	2.570	10	27 Jan 2010	05 Mar 2010
36	Makarov I.A. (_Bkmz_)³¹	140	71	22	332	718	7.376	.499	9	27 Feb 2010	10 Mar 2010
37	Valuev D.I. (Fiolent)¹	137	63	22	326	2359	196.749	69.243	8	18 Feb 2010	10 Mar 2010
38	Fajnberg M.L. (burnall)³⁶	136	57	22	325	263	34.928	6.085	8	05 Mar 2010	05 Mar 2010
39	Latfullin A.S. (Replikon)³⁸	133	158	22	315	122	20.172	3.478	8	15 Sep 2009	01 Mar 2010
40	Borisenkov D.V. (xuser)²⁶	130	70	22	306	757	4.732	.699	8	26 Feb 2010	06 Mar 2010
41	Vil'danov M. (mar_vi)²⁹	121	251	21	299	163	12.141	3.028	8	29 Nov 2008	27 Nov 2009
42	Mishin S.A. (CepbIu)²⁷	115	251	21	286	300	9.809	1.708	8	12 Feb 2009	16 Feb 2009
43	Bulanov P.A. (rage)³⁶	116	142	21	285	105	3.158	1.944	8	29 Oct 2008	29 Oct 2008
44	Kuvalkin K.S. (Cyrilus)¹	112	251	21	278	1441	13.121	2.380	8	04 Nov 2008	18 Dec 2009
45	Mal'tsev A.V. (Palkin)⁶	109	251	21	275	708	48.691	7.633	8	25 Jul 2008	25 Feb 2010
46	Severyukhin Yu.A. (Venser)¹	108	251	21	274	335	4.830	.374	8	01 Feb 2008	18 May 2009
47	Sheptunov P.P. (Dzen)³	107	251	21	273	279	8.055	.411	8	02 Oct 2007	15 Nov 2007
48	Burakov S.G. (burakov58)³²	107	251	21	273	974	51.518	18.961	8	30 Sep 2007	09 Nov 2007
49	Tot'myanin S.A. (SCAT)³⁴	122	251	21	302	103	11.460	1.434	7	28 Mar 2009	04 Apr 2009
50	Milovidov A.N. (man2)³⁸	109	145	21	273	860	65.928	5.344	7	01 Mar 2008	18 Aug 2008
51	Kurbanoff N.I. (Nariman Kurbanoff)⁴⁶	133	140	22	314	653	177.871	9.850	6	13 Feb 2010	10 Mar 2010
52	Zverev D.L. (dimzv)¹	103	251	21	266	1503	9.260	2.970	6	16 Dec 2007	16 Dec 2007
53	Agapov V. (KERBEROS)¹	100	251	20	258	89	6.078	.585	6	20 Nov 2006	19 Mar 2008
54	Zavorotnev V.V. (vvz)⁴²	133	251	22	319	1567	6.170	.224	5	11 Nov 2009	25 Feb 2010
55	Radar Yu.V. (inkerman)⁴³	104	143	21	266	60	5.243	.000	5	07 Oct 2007	01 Nov 2008
56	Polyakov S.G. (Ivanoff Alex)⁵⁵	133	142	22	315	279	53.373	4.943	4	05 Jan 2010	04 Mar 2010
57	Perfilov B.V. (B o r i s)⁴³	129	142	22	308	611	252.794	.364	4	04 Feb 2010	26 Feb 2010
58	Suprun D. (TimonSP)⁴²	126	142	22	304	374	3.859	.424	4	29 Sep 2009	29 Sep 2009
59	Sysoev A.V. (Sysa)⁴⁵	126	142	22	295	649	166.733	35.893	4	19 Aug 2009	28 Oct 2009
60	Pesterev A. (PandNsk)⁴⁰	122	142	21	292	482	2.917	.133	4	08 Jun 2009	08 Jun 2009
61	Yuldashev M.R. (Snowbear)¹	122	142	22	291	1609	4.554	.188	4	13 Dec 2009	13 Feb 2010
62	Poltavets L.S. (lilyok)⁶²	139	139	22	329	557	118.119	.097	2	07 Mar 2010	10 Mar 2010
63	Rakovich A. (Lohmatyi)⁵⁴	134	63	22	316	421	4.893	.651	2	05 Mar 2010	05 Mar 2010
64	Yakubova O. (Oxana)⁵¹	125	139	22	297	717	95.029	61.130	2	17 Sep 2009	09 Feb 2010
65	Utyonkov M.N. (=Maxim=)⁴⁴	111	139	21	270	1320	26.080	.036	2	13 Dec 2009	13 Dec 2009
66	Palij S.A. (PS_Sergey)⁴⁶	98	139	20	250	212	15.440	4.188	2	01 Dec 2006	03 Dec 2006
67	Zaikin A.S. (Allex)⁶²	137	137	22	323	644	91.635	.000	0	09 Feb 2010	03 Mar 2010
68	Romanov K.Yu. (kostik)⁶³	136	76	22	320	345	108.670	.000	0	18 Feb 2010	25 Feb 2010
69	Kozhushko A.A. (Stasca)⁶³	135	138	22	320	629	345.627	.000	0	17 Jan 2010	14 Feb 2010
70	Gorbunov A.V. (risp)⁶⁶	135	136	22	317	416	17.851	.000	0	29 Jan 2010	10 Mar 2010
71	Sribnyak A. (silver)⁷⁰	133	133	22	312	717	50.822	.000	0	31 Jan 2010	10 Mar 2010
72	>Kotov A. (Ckpa6)⁷²	133	133	22	310	93	15.531	.000	0	10 Mar 2010	10 Mar 2010
73	Ivakhnenko A. (alex.i)⁷²	131	131	22	308	208	144.379	.000	0	07 Mar 2010	07 Mar 2010
74	>Voevutskij S.A. (SergLK)⁶¹	130	51	22	307	205	23.442	.000	0	10 Mar 2010	10 Mar 2010
75	Slavutinskij V.V. (Vasilko)⁴⁷	128	138	22	304	1494	10.500	.000	0	08 Oct 2009	02 Dec 2009
76	Vorob'ev E.V. (Johnnymnemonic)⁷²	130	71	22	304	830	135.027	.000	0	16 Feb 2010	05 Mar 2010
77	Fomichev A.V. (Fomichev)⁵³	128	137	22	303	1723	25.658	.000	0	30 Sep 2009	31 Dec 2009
78	Williams (BW)⁶²	128	137	22	303	272	149.590	.000	0	07 Nov 2009	12 Feb 2010
79	Sheremet S.P. (Baumanec)⁵⁷	125	138	22	301	389	12.244	.000	0	18 Aug 2009	02 Dec 2009
80	Ol'shanskij A.V. (alx_ol)⁶⁷	128	136	22	301	476	171.636	.000	0	30 Dec 2009	26 Feb 2010
81	Filiptsov A.V. (AlexPhil)⁵⁸	125	137	22	298	175	12.237	.000	0	25 Aug 2009	26 Jan 2010
82	marat (lemon)⁵³	124	137	22	297	330	9.693	.000	0	16 Jun 2009	16 Jun 2009
83	Pokhmelkin A.Yu. (Corleone)⁷⁰	125	51	22	295	542	7.444	.000	0	04 Mar 2010	05 Mar 2010
84	Rustem (Chesnok)⁸¹	125	125	22	293	21	2.430	.000	0	09 Feb 2010	10 Mar 2010
85	Koryagin (shuricus)⁵⁶	123	136	22	293	23	3.178	.000	0	24 Jun 2009	07 Jul 2009
86	Bagdasar'yan V.D. (vasya29)⁸²	125	125	22	293	73	9.866	.000	0	31 Jan 2010	10 Mar 2010
87	Medvedev V.V. (MeVit)⁵⁷	125	137	22	293	462	40.281	.000	0	15 Sep 2009	20 Jan 2010
88	Evtisov S.S. (Minimal)⁵⁹	123	136	22	293	401	144.179	.000	0	12 Jul 2009	24 Nov 2009
89	Puzen'kin A.I. (Fencer)⁵⁷	123	137	22	293	1243	263.521	.000	0	19 Jul 2009	09 Jan 2010
90	Sviridov K.Yu. (orange)⁴⁸	118	138	21	291	392	15.910	.000	0	14 Dec 2008	06 Mar 2009
91	Mitronin A.A. (mitronin)⁵¹	121	137	21	291	2132	306.397	.000	0	01 May 2009	02 May 2009
92	Ostapchuk A. (_ORA_)⁹⁰	123	76	22	290	644	199.243	.000	0	11 Feb 2010	10 Mar 2010
93	Khil'ko V.M. (VOVA_KHILKO)⁵⁰	122	138	21	288	509	137.726	.000	0	26 Sep 2009	01 Nov 2009
94	Turshev (Romul_T)⁷¹	122	131	21	288	511	171.794	.000	0	14 Sep 2009	09 Nov 2009
95	Balutkin A.V. (Balutkin)⁷³	123	131	22	288	906	402.922	.000	0	14 Jan 2010	09 Mar 2010
96	Korobov I.V. (ivan.korobov)⁶⁸	123	137	22	287	1126	330.387	.000	0	26 Aug 2009	13 Jan 2010
97	Solopov A. (brahmaputrych)⁸⁰	122	138	22	285	1041	16.813	.000	0	27 Oct 2009	28 Oct 2009
98	Kurochkin P.A. (qwrqwr)⁹⁷	121	121	22	284	114	24.982	.000	0	04 Mar 2010	09 Mar 2010
99	Sokolov V.A. (SoVa)⁶⁸	120	137	22	284	1319	677.072	.000	0	07 Aug 2009	01 Dec 2009
100	Fedotova E.V. (Eka)⁶⁶	121	135	22	282	802	20.812	.000	0	21 Sep 2009	30 Dec 2009

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Top 100

Involved in rating: 11392 Involved in second stage rating: 2099

Involved in rating: 11392
Involved in second stage rating: 2099