TOP 100 at "SQL Exercises"

February 17, 12:05 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: 12241 Involved in second stage rating: 3153

No	Person	Number of Sel_ex	Last_Sel	Number of DML_ex	Scores	Days	Days_2	Days_3	S_3	LastSolved	LastVisit
1	Krasovskij E.A. (pegoopik)¹	268	231	38	664	3110	210.515	14.366	247	2019-01-12	2019-02-15
2	Kostomarov A.V. (al29)¹	256	40	38	644	2452	4139.343	2276.667	247	2019-01-11	2019-02-12
3	Doschenko V.N. (mcrain)¹	252	251	38	628	2659	2034.712	519.730	247	2019-01-12	2019-02-08
4	Kreslavskij O.M. (Arcan)¹	266	306	38	658	4356	280.571	221.876	241	2019-01-05	2019-02-16
5	Boiko D. (Angellore)¹	262	228	33	643	3846	5236.407	3825.140	236	2018-02-20	2019-02-09
6	Bezhaev A.Yu. (Baser)¹	261	227	34	641	2924	201.513	178.821	233	2018-05-04	2019-01-17
7	Dubinskij A.V. (_velial)¹	259	40	38	643	3307	2797.461	3371.376	227	2018-12-03	2019-02-15
8	Karasyova N.V. (vlksm)¹	260	306	38	640	4621	290.398	241.682	223	2019-01-07	2019-02-14
9	Kurochkin P.A. (qwrqwr)¹	256	306	38	628	3343	255.921	164.392	211	2019-01-05	2019-02-17
10	Vyazovetskov A.S. (alex_v)⁹	239	161	23	561	4361	177.452	94.196	204	2018-05-17	2018-05-17
11	Filippkin D.V. (_dimon_)¹	243	115	29	596	2737	194.554	127.909	202	2016-07-20	2018-08-29
12	Movlyanov A.P. (Oct)⁷	243	10	29	587	1307	2353.723	2448.847	193	2017-01-23	2018-08-27
13	Sal'nikov S.A. ($erges)¹	226	206	25	550	2533	17.505	14.498	181	2015-02-02	2018-10-18
14	Chernov D.V. (Kursist)¹⁴	233	206	38	555	833	992.790	1226.789	164	2019-02-15	2019-02-17
15	Kukushkin S.A. (smog)⁹	224	163	29	526	2368	1054.562	1122.181	153	2017-10-03	2018-12-17
16	Yatsuk A.A. (Faust_zp)¹	185	255	24	458	1984	144.150	108.840	137	2012-07-12	2019-02-15
17	Kuznetsov V.S. (herrRo)¹	170	260	23	417	1167	478.511	73.335	122	2012-02-08	2013-06-18
18	Grinkevich D.L. (Dmitrij Grinkevich)¹³	203	10	27	466	2059	367.128	932.343	109	2017-05-31	2019-02-13
19	Drozdkov A.N. (anddros)⁵	191	16	24	444	2244	12.341	11.091	108	2014-07-21	2015-01-29
20	Varenikov D.M. (Dmitriy Varenikov)²⁰	211	160	38	491	3025	2659.553	1790.601	104	2019-02-06	2019-01-28
21	Shindin A.V. (AlShin)¹	157	44	23	386	3621	409.202	777.457	99	2018-09-18	2018-10-06
22	Zajtsev V.S. (Sleeping)¹⁹	208	184	27	458	3601	1040.053	1327.686	98	2018-04-17	2018-11-16
23	Timofeeva E.V. (Umrikhina)¹	206	95	35	487	3949	50.506	47.237	96	2019-02-15	2019-02-15
24	Aliev R. (y4nzi)²¹	211	187	33	488	236	64.714	37.753	95	2018-01-25	2018-08-10
25	Tarasov D.B. (Gavrila)⁹	163	15	23	392	2427	151.343	99.710	95	2012-04-23	2018-01-08
26	Orlov M.V. (Eagleoff)⁹	150	258	23	368	952	138.468	106.466	92	2011-11-10	2019-01-31
27	Zotov P.G. (Ozzy)¹	148	-16	23	365	1412	213.524	187.364	83	2012-02-05	2016-08-18
28	Derzhal'tsev V.A. (MadVet)³	137	100	22	338	2073	143.349	99.698	81	2010-12-29	2015-10-14
29	Agapov V. (KERBEROS)¹	160	253	24	385	2409	35.562	27.703	69	2013-04-02	2016-09-24
30	Petrov Y. (YuriPetrov)²¹	197	40	38	453	2886	63.333	24.005	64	2019-01-10	2019-01-23
31	Williams B. (BW)³¹	201	198	38	458	3550	4684.129	2394.036	63	2018-11-26	2019-01-28
32	Chebykin D.N. (GriGrim)²⁵	202	40	33	461	3516	815.976	380.694	62	2019-01-30	2019-01-30
33	Shaymardanov M.M. (xLiSPirit)¹⁹	179	203	34	429	2792	426.854	528.104	62	2018-05-18	2018-12-20
34	Kalinin K.A. (kalinin_k)¹⁶	153	169	23	359	391	26.206	36.659	60	2012-06-30	2014-11-19
35	Fedevych V.I. (labuch_fedev)³³	190	183	33	434	1394	860.430	1551.871	57	2017-12-23	2018-01-08
36	Dvoryaninov V. (Valdaj)¹⁶	152	7	23	351	1499	405.533	329.316	55	2013-08-14	2018-12-27
37	Shkarednyj I.N. (Gosha)³⁷	181	203	38	434	4687	762.246	153.956	54	2018-11-26	2019-02-15
38	Murashkin I.V. (lepton)¹	95	90	21	220	2188	131.386	645.720	51	2012-03-20	2014-03-10
39	Koptel'tsev V. (selber)³⁹	192	306	38	452	2327	1227.928	346.108	49	2019-01-04	2019-02-16
40	Fokin A. (Vizitor )³³	175	35	27	415	1569	53.842	1127.337	46	2015-12-21	2018-08-05
41	Halushka B. (halushka)³³	158	35	20	365	284	131.302	58.407	46	2015-10-19	2016-01-22
42	Titovskij P.S. (kli3ma)²³	168	45	28	400	1903	27.479	17.959	45	2016-06-15	2016-06-15
43	Utyonkov M.N. (=Maxim=)²⁰	175	95	24	389	4533	48.983	11.750	42	2018-10-08	2018-12-11
44	Sysoev A.V. (Sysa)³⁸	122	174	22	258	3225	6163.368	2114.921	39	2016-09-07	2017-11-30
45	Sviridov K.Yu. (orange)¹⁹	124	-16	23	302	1591	62.221	31.081	38	2012-05-17	2012-05-22
46	Senkevich S.V. (GreyC)¹	91	2	21	223	393	55.287	23.321	38	2009-10-07	2014-03-15
47	Seleznyov A.S. (Artyom S.)¹	87	106	21	214	444	46.448	30.368	38	2009-01-25	2010-09-08
48	Sigankov V.I. (vasilyvanc)⁴⁸	185	186	38	424	1813	110.090	29.381	36	2019-02-02	2019-02-16
49	Vakhrameev A. (WY)³⁴	172	52	25	392	1445	39.011	9.069	36	2015-01-18	2018-02-11
50	Latyntsev N.G. (aks_nsk)⁴⁵	185	257	38	435	2474	32.744	5.220	34	2018-12-06	2019-02-09
51	Pechatnov V.V. (pvv)¹	119	15	21	279	1992	40.086	15.512	33	2013-04-05	2016-10-29
52	Martynyuk (Wiedzmen)²¹	155	120	23	351	2189	1691.989	1692.363	32	2015-03-10	2016-02-08
53	Nikotin V.M. (@Nikotin)¹	89	2	21	217	467	7.697	3.541	32	2009-12-11	2012-11-08
54	Pyatiletov A. (MontaG)⁵⁴	179	185	38	410	2313	89.197	22.623	29	2019-01-14	2019-01-21
55	Nashyn E. (O.o)²³	126	7	23	291	1159	183.142	77.876	29	2013-09-13	2014-11-28
56	Zin4uk V. (Zin4uk Vadim)³³	145	103	24	342	1334	154.722	42.752	28	2014-06-24	2014-09-02
57	Pavlov A.V. (Anton)⁵⁰	172	-17	34	397	4635	2081.319	31.027	26	2018-05-31	2018-11-05
58	X D. (railgun3r)²⁸	152	104	24	353	1369	320.237	750.766	26	2014-08-16	2015-11-03
59	Mullakhanov R.Kh. (rem)⁹	90	-6	22	216	238	14.329	9.679	26	2009-06-20	2010-02-02
60	F (uff)⁵¹	178	69	31	406	1504	1073.788	952.124	25	2018-01-22	2018-08-20
61	Sivoglazov M.A. (Gaizenberg)⁵¹	158	142	24	357	801	288.645	35.424	24	2015-11-10	2018-09-27
62	Vas'kov E.V. (Johan)²	141	58	24	329	2582	544.122	1034.271	24	2013-08-16	2014-01-03
63	Sukhnev D.A. (mz)²²	132	44	23	310	2468	62.106	13.009	23	2013-05-05	2015-10-17
64	Lyubchenko V.A. (IAS56)⁶	100	84	22	236	1454	649.209	138.580	23	2010-09-14	2014-05-06
65	Anisimov D. (danilko)¹³	94	46	22	216	31	12.467	7.708	23	2009-08-12	2009-08-17
66	Egorov Yu.A. (Yury Egorov)⁴⁴	142	197	23	316	1772	19.759	13.689	21	2016-04-16	2016-04-16
67	Fajnberg M.L. (burnall)³⁶	124	185	23	284	1451	220.161	295.352	21	2013-06-05	2014-11-03
68	Golubin R.S. (Roman Golubin)³	80	2	21	189	1714	92.685	58.691	20	2010-04-29	2018-06-15
69	Kudryakov A.I. (AKudrakov)¹⁹	99	85	22	231	756	101.131	52.909	18	2010-02-05	2010-05-05
70	Suprun D. (TimonSP)⁴²	155	115	29	376	3033	11.926	1.721	15	2017-01-09	2018-10-27
71	Azbel' E.G. (enull)⁶⁹	145	143	25	351	3439	1146.218	1004.908	15	2018-02-21	2018-10-17
72	Skorohod I. (Dracul4ik)⁶⁵	145	52	25	347	2297	712.643	584.009	15	2017-09-12	2018-08-07
73	Grishin (alvigr)⁵⁵	143	140	24	324	1095	89.639	756.898	15	2014-12-10	2015-01-19
74	Grecha (grecha)⁵³	140	185	24	318	151	8.813	1.612	15	2014-02-26	2016-03-11
75	Frolov (dr.shtopor)⁶⁶	141	148	28	349	707	306.798	49.878	14	2016-04-05	2019-01-13
76	Egorov A.B. (ABEgorov)²⁰	99	140	22	234	750	15.262	8.506	14	2010-02-26	2011-05-17
77	Nikolaenko A.V. (Shadow77)¹²	90	116	22	211	761	66.350	7.673	14	2009-09-13	2010-03-24
78	Soldatenkov Yu.S. (SolYUtor)²	76	-7	21	179	1413	21.067	4.954	14	2010-04-07	2012-11-08
79	Vojnov P.E. (paparome)¹	98	252	23	224	1923	4.448	.562	13	2010-12-01	2011-04-21
80	Belogurova K. (Katy_Ekb)¹	70	1	21	168	550	10.225	3.593	13	2008-11-27	2015-03-20
81	iglbeat (iglbeat)²³	101	75	21	224	1880	37.093	15.741	12	2012-10-19	2012-10-25
82	Proskurin Yu.N. (Xonner)⁷¹	158	95	29	366	2057	51.178	7.973	11	2018-06-23	2019-02-14
83	Maslyaev V.S. (Velmont)⁶¹	161	45	27	365	2168	131.640	42.061	11	2018-02-02	2018-09-12
84	Donskikh A.V. (Ridan)²⁸	101	71	22	230	1511	699.561	31.402	11	2012-05-09	2017-04-28
85	Grishunin M.F. (MikhailFG)⁸⁵	145	40	38	368	766	113.569	3.897	10	2019-01-25	2019-02-02
86	Polyakov S.G. (Ivanoff Alex)³¹	139	135	24	322	1700	187.082	14.537	10	2013-11-29	2018-10-24
87	Kabanets E.G. (azkaban)⁵⁴	151	43	25	340	2227	1921.772	5.246	9	2015-12-30	2015-12-31
88	Bryzgunov V.A. (lorins_)⁶¹	134	153	23	305	1121	183.078	366.226	9	2013-10-23	2017-11-10
89	Rybkina T.V. (Rybka)³⁷	107	145	22	249	156	107.472	18.281	9	2010-08-30	2019-01-19
90	Makarov I.A. (_Bkmz_)³¹	98	85	22	228	741	7.517	.499	9	2010-03-23	2015-04-04
91	Kurbanoff N.I. (Nariman Kurbanoff)³⁸	91	-14	22	206	798	204.959	141.899	9	2010-07-13	2018-09-26
92	Perfilov B.V. (B o r i s)³³	87	252	22	198	666	923.158	561.220	9	2010-03-31	2018-08-13
93	Milenkov (wqer)⁹³	143	40	38	365	974	122.578	13.022	8	2019-01-08	2019-02-15
94	Ilyasov V. (VadimI)⁸⁸	149	148	29	361	251	24.746	.546	8	2017-03-13	2017-04-03
95	Valuev D.I. (Fiolent)¹	105	100	23	250	2714	201.205	69.243	8	2011-02-09	2018-08-29
96	Borisenkov D.V. (xuser)²⁶	106	35	26	243	3514	5.074	.699	8	2017-09-18	2019-01-02
97	Vil'danov M. (mar_vi)²⁹	98	36	21	227	1154	107.382	3.028	8	2011-08-23	2012-11-05
98	Glazyrin D.S. (glassman)²⁴	97	-16	22	225	1731	445.793	.420	8	2013-03-14	2018-01-22
99	Mishin S.A. (CepbIu)²⁷	72	96	21	170	294	9.468	1.708	8	2009-02-12	2009-02-16
100	Bulanov P.A. (rage)³⁶	73	54	21	170	105	3.012	1.944	8	2008-10-29	2008-10-29

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Top 100

Involved in rating: 12241 Involved in second stage rating: 3153

Involved in rating: 12241
Involved in second stage rating: 3153