Rating of second-stage exercises on SQL Exercises

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March 11, 16:59 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	46	75267	3	paparome	2006-10-01	6.6
149	3	14	52728	2	$erges	2008-09-08	9.9
138	4	83	39452	27	Cyrilus	2005-12-09	9.4
106	3	106	28313	3	vlksm	2008-11-27	8.9
143	5	17	24481	12	inkerman	2007-10-07	8.5
161	3	5	21852	2	Ozzy	2009-11-06	10.0
62	1	823	13491	15	Serge I	2004-06-23	7.2
157	3	7	12250	3	anddros	2009-06-05	10.0
155	3	8	10794	3	vlksm	2009-04-17	10.0
163	3	4	10022	0	Ozzy	2010-01-08	9.3
147	3	15	9116	4	$erges	2008-05-17	10.0
137	4	123	8254	21	Cyrilus	2005-03-06	9.3
152	3	18	6868	2	vlksm	2009-01-05	9.7
160	3	9	5684	0	Ozzy	2009-08-07	9.3
144	4	21	5601	2	pvv	2008-01-01	8.0
154	4	9	5567	3	anddros	2009-03-18	10.0
158	2	16	4970	2	Ozzy	2009-06-14	5.4
146	3	25	4885	3	paparome	2008-01-22	9.9
73	3	88	4710	46	Ozzy	2009-08-22	8.9
159	3	5	4613	0	anddros	2009-08-24	9.5
57	2	73	3772	8	Ozzy	2010-01-29	8.0
126	3	73	3728	5	$erges	2008-09-07	8.8
153	3	11	3547	3	Ozzy	2009-02-14	9.5
150	4	16	3476	2	@Nikotin	2008-11-09	9.3
116	4	81	3157	16	$erges	2008-12-13	9.7
121	3	259	3147	7	ZrenBy	2004-02-26	7.6
151	3	15	3107	3	anddros	2008-12-30	9.6
141	4	42	2934	5	vlksm	2006-10-29	9.0
96	3	174	2779	89	anddros	2008-11-22	8.3
98	3	363	2550	40	ZrenBy	2003-09-01	8.2
72	3	632	2382	138	paparome	2005-12-03	9.2
148	2	21	2317	8	vlksm	2008-09-06	8.9
87	3	377	2246	76	Roman S. Golubin	2006-07-14	9.3
156	2	15	2020	2	anddros	2009-04-17	9.9
145	3	34	1969	2	pvv	2008-01-07	8.8
142	2	58	1554	0	paparome	2007-03-24	8.7
134	3	96	1328	3	pvv	2008-01-22	8.5
139	2	65	1277	2	Snowbear	2006-09-09	8.2
88	1	166	1237	4	$erges	2008-09-06	6.4
69	2	428	1140	9	Roman S. Golubin	2005-12-13	7.5
125	3	224	1089	5	dimzv	2004-02-29	8.6
110	3	267	1082	9	Snowbear	2006-03-14	8.8
85	3	41	924	6	Ozzy	2009-10-10	8.2
140	2	14	861	0	_Bkmz_	2010-01-30	9.1
89	3	162	835	26	_Bkmz_	2008-06-21	8.3
68	2	664	798	99	Palkin	2007-03-29	8.2
132	3	13	788	4	risp	2010-01-25	9.4
162	2	9	740	0	Ozzy	2009-12-26	10.0
122	3	239	716	10	Fiolent	2004-02-26	7.5
114	3	290	598	4	Serge I	2003-12-24	8.3
109	3	326	586	1	VIG	2003-12-23	7.7
76	2	41	558	4	silver	2010-01-23	8.3
129	3	177	547	8	DimaN	2004-03-01	7.7
74	2	274	532	9	vlksm	2008-06-21	8.0
124	3	230	517	2	DimaN	2004-02-26	8.1
118	2	275	507	2	Fiolent	2004-01-05	8.3
51	2	108	502	27	anddros	2009-12-26	7.8
60	1	1287	470	120	Serge I	2005-03-05	6.9
63	2	73	452	8	Ozzy	2009-12-26	8.2
136	3	157	438	0	Fiolent	2004-06-23	7.7
54	1	503	431	50	Ozzy	2008-09-06	7.9
92	2	322	387	9	paparome	2006-07-26	8.4
65	3	1257	360	74	Serge I	2003-04-08	8.0
112	2	271	339	4	VIG	2005-06-26	7.3
111	3	290	292	3	Fiolent	2005-01-19	8.4
128	2	126	277	4	inkerman	2007-09-14	8.4
97	2	415	265	1	ZrenBy	2003-09-01	7.4
75	3	699	259	10	VIG	2003-04-29	7.5
67	2	1058	247	14	Serge I	2005-05-07	7.1
71	2	66	240	1	anddros	2009-12-26	8.7
78	2	655	206	7	Serge I	2003-06-05	6.7
115	3	288	205	1	Serge I	2003-12-26	7.8
103	3	340	203	2	VIG	2003-12-22	8.1
52	1	850	199	29	mslava	2003-09-01	6.5
77	2	422	195	12	yuriy.rozhok	2007-03-24	7.7
133	1	165	193	0	DimaN	2004-06-22	6.4
107	2	255	189	3	lepton	2006-09-29	8.3
64	3	1345	186	17	Serge I	2003-04-08	5.9
50	3	1017	184	36	Serge I	2003-04-09	6.4
79	2	634	176	14	Serge I	2003-06-05	7.0
164	1	5	171	0	Ozzy	2010-03-05	10.0
49	1	286	157	30	anddros	2009-06-05	7.3
70	1	207	154	3	Serge I	2009-04-17	7.8
90	3	471	144	4	VIG	2003-09-01	7.3
59	1	1297	135	55	paparome	2005-12-02	7.2
81	2	252	132	14	$erges	2008-05-10	7.9
93	2	450	129	0	ZrenBy	2003-09-01	7.0
83	2	583	122	2	Serge I	2003-08-28	6.4
131	1	170	119	1	Serge I	2004-06-22	6.2
82	2	592	116	1	Serge I	2003-08-28	6.2
113	2	248	113	0	paparome	2006-03-14	7.4
95	2	277	96	1	Fiolent	2004-06-22	7.2
119	2	271	96	0	mslava	2004-01-05	7.1
117	2	278	94	0	Fiolent	2003-12-26	6.8
84	1	578	90	0	Serge I	2003-08-28	5.7
66	3	1187	86	26	Serge I	2003-04-08	7.1
58	1	1142	85	54	Serge I	2006-11-17	7.5
108	3	328	85	1	mslava	2003-12-23	7.1
61	2	90	84	2	risp	2009-12-26	8.2
105	3	336	81	0	mslava	2003-12-22	8.1
45	1	953	69	6	Serge I	2003-04-29	6.5
43	1	328	68	1	Aaz	2004-02-26	6.4
91	1	468	64	0	ZrenBy	2003-09-01	6.2
102	2	349	62	1	ZrenBy	2003-09-01	6.2
135	1	113	58	0	Serge I	2007-09-07	7.4
55	1	563	57	72	Serge I	2008-06-21	6.6
127	2	199	54	2	dimzv	2004-03-01	6.9
47	1	1314	52	18	Serge I	2005-01-19	6.1
120	3	269	48	0	Fiolent	2004-02-26	5.8
101	2	350	47	0	ZrenBy	2003-09-01	6.9
99	1	356	45	0	ZrenBy	2003-09-01	6.2
94	2	441	45	1	ZrenBy	2003-09-01	6.4
44	1	637	43	4	Serge I	2003-08-28	6.1
53	1	636	41	29	DimaN	2004-03-01	7.2
80	3	615	40	4	VIG	2003-06-05	6.4
123	2	171	40	0	Fiolent	2004-06-22	7.0
104	3	338	39	1	VIG	2003-12-22	7.0
86	2	573	36	0	Serge I	2003-08-28	6.8
46	1	270	30	122	Serge I	2009-08-12	6.0
100	2	353	29	0	ZrenBy	2003-09-01	6.6
130	2	176	28	1	DimaN	2004-03-01	7.1
56	1	807	25	43	VIG	2003-09-01	5.9
48	1	259	24	5	Serge I	2009-06-22	6.8

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