Rating of second-stage exercises on SQL Exercises

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September 03, 19:03 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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Rating of second-stage exercises

No - exercise number; Bonus - level of difficulty;
Solved - number of visitors, who have solved this exercise;
Time(min) - the average time that has been spent for solution in minutes;
noOK - number of visitors, who have not solved this exercise yet.
(Click on a cell to see list of these);
Rank - average score on a result of voting.

No	Bonus	Solved	Time(min)	noOK	Author	Date	Rank
251	4	48	54752	3	paparome	2006-10-01	6.6
165	2	5	51099	1	vlksm	2010-03-18	10.0
149	3	16	47146	2	$erges	2008-09-08	9.9
157	3	9	40892	2	anddros	2009-06-05	7.7
138	4	88	32705	26	Cyrilus	2005-12-09	9.4
151	3	18	18920	2	anddros	2008-12-30	9.6
121	3	270	18752	4	ZrenBy	2004-02-26	7.3
143	5	21	16696	11	inkerman	2007-10-07	8.8
161	3	7	14746	2	Ozzy	2009-11-06	9.4
163	3	6	14475	1	Ozzy	2010-01-08	9.2
62	1	879	13489	15	Serge I	2004-06-23	7.2
153	3	14	12671	4	Ozzy	2009-02-14	9.4
155	3	9	10681	3	vlksm	2009-04-17	10.0
106	3	117	9925	5	vlksm	2008-11-27	8.9
253	3	18	8942	5	$erges	2008-05-17	10.0
147	4	4	7246	0	$erges	2010-08-06	10.0
252	2	19	7171	2	Ozzy	2009-06-14	6.6
152	3	21	6682	2	vlksm	2009-01-05	9.8
167	3	3	6060	1	qwrqwr	2010-07-28	10.0
139	2	70	5807	2	Snowbear	2006-09-09	8.2
160	3	10	5701	1	Ozzy	2009-08-07	9.4
154	4	9	5567	3	anddros	2009-03-18	10.0
144	4	22	5347	2	pvv	2008-01-01	8.0
132	3	25	5234	1	risp	2010-01-25	8.3
137	4	126	5118	22	Cyrilus	2005-03-06	9.3
146	3	28	4355	2	paparome	2008-01-22	9.9
116	4	90	4150	16	$erges	2008-12-13	9.5
123	3	103	4114	44	Ozzy	2009-08-22	8.9
150	4	18	4062	2	@Nikotin	2008-11-09	9.3
159	3	8	3922	0	anddros	2009-08-24	8.8
126	3	82	3706	5	$erges	2008-09-07	8.7
164	2	10	3439	1	anddros	2010-04-26	9.7
65	2	150	3174	25	Ozzy	2010-01-29	7.9
148	2	24	2645	7	vlksm	2008-09-06	9.1
141	4	43	2634	5	vlksm	2006-10-29	9.1
98	3	380	2633	37	ZrenBy	2003-09-01	8.1
96	3	190	2626	88	anddros	2008-11-22	8.3
158	3	7	2290	0	Ozzy	2010-04-09	9.5
145	3	38	2089	1	pvv	2008-01-07	8.9
156	2	21	1737	2	anddros	2009-04-17	9.6
100	3	32	1692	3	qwrqwr	2010-04-27	9.6
87	3	395	1594	77	Roman Golubin	2006-07-14	9.3
72	3	663	1585	140	paparome	2005-12-03	9.2
162	2	13	1451	1	Ozzy	2009-12-26	9.7
110	3	276	1199	10	Snowbear	2006-03-14	8.8
169	3	2	1076	0	Valdaj	2010-09-02	10.0
140	2	23	1018	0	_Bkmz_	2010-01-30	8.8
69	2	466	1015	8	Roman Golubin	2005-12-13	7.6
142	2	63	994	0	paparome	2007-03-24	8.7
125	3	234	875	5	dimzv	2004-02-29	8.6
85	3	76	842	4	Ozzy	2009-10-10	8.1
68	2	700	819	97	Palkin	2007-03-29	8.2
118	2	283	707	2	Fiolent	2004-01-05	8.3
134	3	102	704	3	pvv	2008-01-22	8.5
88	1	188	685	1	$erges	2008-09-06	6.2
89	3	184	673	24	_Bkmz_	2008-06-21	8.2
168	2	2	645	0	qwrqwr	2010-08-27	10.0
114	3	298	594	5	Serge I	2003-12-24	8.3
122	3	249	586	11	Fiolent	2004-02-26	7.6
109	3	335	566	1	VIG	2003-12-23	7.8
76	2	85	507	4	silver	2010-01-23	8.5
129	3	185	504	7	DimaN	2004-03-01	7.6
130	2	18	503	0	anddros	2010-05-22	10.0
84	2	108	453	12	Ozzy	2009-12-26	7.9
74	2	303	446	11	vlksm	2008-06-21	8.0
166	1	15	405	0	anddros	2010-07-26	9.1
67	3	82	395	9	Ozzy	2010-04-27	7.9
60	1	1342	393	120	Serge I	2005-03-05	7.0
136	3	163	389	0	Fiolent	2004-06-23	7.7
66	2	166	383	33	anddros	2009-12-26	7.9
111	3	299	327	3	Fiolent	2005-01-19	8.4
92	2	339	312	9	paparome	2006-07-26	8.4
124	3	241	307	2	DimaN	2004-02-26	8.0
54	1	563	306	48	Ozzy	2008-09-06	7.9
63	3	1314	282	74	Serge I	2003-04-08	8.0
97	2	428	266	1	ZrenBy	2003-09-01	7.4
75	3	726	254	9	VIG	2003-04-29	7.6
112	2	280	252	4	VIG	2005-06-26	7.2
82	2	54	248	2	_Virt_	2010-04-27	7.3
128	2	133	217	5	inkerman	2007-09-14	8.3
71	2	118	213	5	anddros	2009-12-26	8.9
103	3	354	205	1	VIG	2003-12-22	8.2
79	2	655	203	14	Serge I	2003-06-05	7.0
86	1	51	203	0	Ozzy	2010-03-05	9.2
107	2	264	198	3	lepton	2006-09-29	8.3
49	1	365	196	23	anddros	2009-06-05	7.4
52	1	912	191	26	mslava	2003-09-01	6.5
115	3	296	184	1	Serge I	2003-12-26	7.8
50	1	1084	182	34	Serge I	2003-04-09	6.5
64	2	1114	172	15	Serge I	2005-05-07	7.1
42	2	753	172	9	Serge I	2003-06-05	6.7
77	2	447	169	11	yuriy.rozhok	2007-03-24	7.7
133	1	171	133	0	DimaN	2004-06-22	6.4
81	2	278	132	12	$erges	2008-05-10	7.7
90	3	487	121	3	VIG	2003-09-01	7.3
45	2	160	121	1	vasia armor	2010-05-21	7.0
83	2	605	118	2	Serge I	2003-08-28	6.5
40	2	726	117	4	Serge I	2003-08-28	7.0
113	2	257	105	0	paparome	2006-03-14	7.3
117	2	286	100	0	Fiolent	2003-12-26	6.8
95	2	293	100	1	Fiolent	2004-06-22	7.2
119	2	280	97	0	mslava	2004-01-05	7.1
57	3	1248	92	26	Serge I	2003-04-08	7.2
99	2	38	89	0	qwrqwr	2010-05-13	7.7
108	3	338	87	0	mslava	2003-12-23	7.0
93	2	465	85	0	ZrenBy	2003-09-01	7.0
70	1	245	84	3	Serge I	2009-04-17	7.8
78	2	59	83	1	_ORA_	2010-04-27	7.0
61	2	182	83	3	risp	2009-12-26	8.2
105	3	349	75	0	mslava	2003-12-22	8.1
41	1	179	65	31	qwrqwr	2010-04-26	7.4
127	2	207	63	2	dimzv	2004-03-01	7.0
102	2	361	60	1	ZrenBy	2003-09-01	6.2
131	1	176	59	1	Serge I	2004-06-22	6.3
135	1	119	51	0	Serge I	2007-09-07	7.4
43	1	439	51	0	Aaz	2004-02-26	6.1
58	1	1200	48	54	Serge I	2006-11-17	7.5
101	2	362	48	0	ZrenBy	2003-09-01	7.0
37	1	1394	47	55	paparome	2005-12-02	7.3
120	3	278	47	0	Fiolent	2004-02-26	5.7
39	1	603	46	0	ZrenBy	2003-09-01	6.5
53	1	697	44	28	DimaN	2004-03-01	7.3
94	2	455	44	1	ZrenBy	2003-09-01	6.4
104	3	351	41	1	VIG	2003-12-22	7.2
55	1	624	40	71	Serge I	2008-06-21	6.7
35	1	1451	38	17	Serge I	2003-04-08	6.4
73	2	226	36	1	Fiolent	2004-06-22	6.8
51	1	150	34	3	qwrqwr	2010-05-01	6.8
56	1	867	33	43	VIG	2003-09-01	6.0
44	1	471	32	1	ZrenBy	2003-09-01	6.2
80	3	638	32	4	VIG	2003-06-05	6.6
36	2	716	30	2	Serge I	2003-08-28	7.1
38	2	509	29	3	ZrenBy	2003-09-01	6.6
91	2	201	29	2	DimaN	2004-03-01	6.9
47	1	1371	27	18	Serge I	2005-01-19	6.1
48	1	336	26	7	Serge I	2009-06-22	6.9
46	1	354	24	126	Serge I	2009-08-12	5.9
59	1	136	20	0	qwrqwr	2010-04-26	7.2
33	1	1055	17	6	Serge I	2003-04-29	6.8
32	1	730	15	3	Serge I	2003-08-28	6.3
34	1	759	14	3	Serge I	2003-08-28	6.4

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