Rating of second-stage exercises on SQL Exercises

SQL exercises

Language

July 31, 21:49 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.
NOTE: Your browser should support Cookies and Javascript to provide correct usage of this site. If you use content filter, it should allow opening child windows to explore help pages.

Login: Password:
	forgot password? Registration

  • Top 100
  • "Liberal" rating
  • Olympic rating
  • TOP 100 of Learning Stage
  • Rating by summation of ranks
  • Top 10 (photos)
  • Last-week results
  • Rating of second-stage exercises 
  • Author's rating  • 2nd stage rating up to exercise:
   enter No 
  • Rating on the exercise:
   enter No
  • Optimistic rating
   enter factor

  • Today statistics
  • Site's old residents
  • Recent leaders activity
  • Сhanges in exercises' TOP 10
  • Results' chart

SQL exercises

  • SELECT (learning stage)
  • SELECT (rating stages)
  • DML

  • Learning stage
  • Rating stages
  • Favorites
  • Search

Certification

  • About certification
  • Certified professionals
  • Statistics
  • Confirm certificate

HELP

Transact-SQL tests

Modelling of data

Exercises voting

Query optimization

Developers & Thanks

For employers

Support SQL-EX.RU

Poll

For what DBMS, besides SQL Server, you would like to have exercises on the site?

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	57474	3	paparome	2006-10-01	6.6
149	3	15	49177	2	$erges	2008-09-08	9.9
138	4	87	32766	27	Cyrilus	2005-12-09	9.4
121	3	268	18256	4	ZrenBy	2004-02-26	7.5
161	3	6	17532	2	Ozzy	2009-11-06	9.3
143	5	20	17328	11	inkerman	2007-10-07	8.6
163	3	6	14475	0	Ozzy	2010-01-08	9.2
62	1	865	13489	15	Serge I	2004-06-23	7.3
157	3	7	12250	3	anddros	2009-06-05	10.0
155	3	9	10681	3	vlksm	2009-04-17	10.0
106	3	113	9523	5	vlksm	2008-11-27	8.9
147	3	17	8497	5	$erges	2008-05-17	10.0
152	3	21	6346	2	vlksm	2009-01-05	9.8
160	3	9	5684	0	Ozzy	2009-08-07	9.3
154	4	9	5567	3	anddros	2009-03-18	10.0
144	4	22	5347	2	pvv	2008-01-01	8.0
165	2	4	5191	2	vlksm	2010-03-18	10.0
137	4	126	5061	22	Cyrilus	2005-03-06	9.3
132	3	24	4999	1	risp	2010-01-25	8.3
252	2	17	4970	3	Ozzy	2009-06-14	5.8
123	3	101	4332	44	Ozzy	2009-08-22	8.9
146	3	28	4168	2	paparome	2008-01-22	9.9
150	4	18	4062	2	@Nikotin	2008-11-09	9.3
159	3	6	3925	0	anddros	2009-08-24	10.0
126	3	81	3728	5	$erges	2008-09-07	8.6
153	3	13	3513	3	Ozzy	2009-02-14	9.6
65	2	138	3443	17	Ozzy	2010-01-29	7.9
116	4	89	3157	15	$erges	2008-12-13	9.5
151	3	16	3113	3	anddros	2008-12-30	9.6
158	3	4	2900	0	Ozzy	2010-04-09	9.3
164	2	9	2890	0	anddros	2010-04-26	9.6
141	4	43	2634	5	vlksm	2006-10-29	9.1
96	3	186	2562	88	anddros	2008-11-22	8.3
148	2	24	2551	7	vlksm	2008-09-06	9.1
98	3	376	2147	37	ZrenBy	2003-09-01	8.2
156	2	19	1908	1	anddros	2009-04-17	9.9
145	3	37	1862	1	pvv	2008-01-07	8.9
100	3	26	1691	2	qwrqwr	2010-04-27	9.6
87	3	390	1589	76	Roman Golubin	2006-07-14	9.3
72	3	657	1509	140	paparome	2005-12-03	9.2
139	2	69	1236	2	Snowbear	2006-09-09	8.2
110	3	273	1064	9	Snowbear	2006-03-14	8.8
69	2	461	1015	8	Roman Golubin	2005-12-13	7.6
140	2	20	1000	0	_Bkmz_	2010-01-30	8.8
142	2	61	908	0	paparome	2007-03-24	8.7
85	3	69	887	5	Ozzy	2009-10-10	8.0
125	3	232	869	5	dimzv	2004-02-29	8.5
68	2	695	807	97	Palkin	2007-03-29	8.2
162	2	12	768	1	Ozzy	2009-12-26	9.7
134	3	100	686	3	pvv	2008-01-22	8.5
88	1	183	686	1	$erges	2008-09-06	6.2
89	3	179	685	25	_Bkmz_	2008-06-21	8.3
118	2	281	627	2	Fiolent	2004-01-05	8.3
114	3	296	588	4	Serge I	2003-12-24	8.3
122	3	247	578	11	Fiolent	2004-02-26	7.5
109	3	331	566	1	VIG	2003-12-23	7.7
76	2	82	523	4	silver	2010-01-23	8.4
129	3	184	488	7	DimaN	2004-03-01	7.7
84	2	103	463	12	Ozzy	2009-12-26	7.9
166	1	9	452	1	anddros	2010-07-26	10.0
74	2	300	444	10	vlksm	2008-06-21	8.0
66	2	158	413	33	anddros	2009-12-26	7.8
67	3	69	404	7	Ozzy	2010-04-27	7.8
60	1	1329	393	121	Serge I	2005-03-05	7.0
136	3	161	386	0	Fiolent	2004-06-23	7.7
130	2	16	346	1	anddros	2010-05-22	10.0
111	3	296	325	3	Fiolent	2005-01-19	8.4
124	3	239	303	2	DimaN	2004-02-26	8.1
54	1	550	301	47	Ozzy	2008-09-06	7.9
63	3	1300	282	74	Serge I	2003-04-08	8.0
92	2	335	278	9	paparome	2006-07-26	8.4
97	2	424	265	1	ZrenBy	2003-09-01	7.4
112	2	277	252	4	VIG	2005-06-26	7.3
75	3	722	251	11	VIG	2003-04-29	7.6
82	2	47	249	1	_Virt_	2010-04-27	7.3
71	2	113	225	3	anddros	2009-12-26	8.8
86	1	41	215	0	Ozzy	2010-03-05	9.2
128	2	132	214	5	inkerman	2007-09-14	8.4
79	2	652	203	14	Serge I	2003-06-05	7.0
103	3	350	202	1	VIG	2003-12-22	8.1
107	2	260	194	3	lepton	2006-09-29	8.3
52	1	896	191	27	mslava	2003-09-01	6.5
50	1	1067	182	35	Serge I	2003-04-09	6.5
115	3	294	181	1	Serge I	2003-12-26	7.8
64	2	1099	174	16	Serge I	2005-05-07	7.1
42	2	727	170	8	Serge I	2003-06-05	6.7
77	2	444	170	11	yuriy.rozhok	2007-03-24	7.7
133	1	170	133	0	DimaN	2004-06-22	6.4
45	2	128	129	3	vasia armor	2010-05-21	6.7
81	2	274	127	12	$erges	2008-05-10	7.7
90	3	483	121	3	VIG	2003-09-01	7.3
40	2	694	116	2	Serge I	2003-08-28	7.0
83	2	600	114	2	Serge I	2003-08-28	6.5
113	2	254	105	0	paparome	2006-03-14	7.4
95	2	289	99	1	Fiolent	2004-06-22	7.2
117	2	284	96	0	Fiolent	2003-12-26	6.8
119	2	278	96	0	mslava	2004-01-05	7.1
57	3	1233	92	26	Serge I	2003-04-08	7.1
99	2	29	91	1	qwrqwr	2010-05-13	7.8
78	2	53	85	0	_ORA_	2010-04-27	7.0
70	1	240	83	3	Serge I	2009-04-17	7.7
108	3	334	82	0	mslava	2003-12-23	7.0
93	2	461	81	1	ZrenBy	2003-09-01	7.0
61	2	165	80	4	risp	2009-12-26	8.0
105	3	345	73	0	mslava	2003-12-22	8.1
49	1	347	61	23	anddros	2009-06-05	7.3
102	2	357	60	1	ZrenBy	2003-09-01	6.3
127	2	206	59	2	dimzv	2004-03-01	7.0
131	1	175	58	1	Serge I	2004-06-22	6.3
135	1	117	51	0	Serge I	2007-09-07	7.4
43	1	413	50	1	Aaz	2004-02-26	6.2
39	1	569	47	1	ZrenBy	2003-09-01	6.5
101	2	358	47	0	ZrenBy	2003-09-01	7.0
37	1	1370	46	55	paparome	2005-12-02	7.2
41	1	147	45	25	qwrqwr	2010-04-26	7.7
58	1	1186	45	54	Serge I	2006-11-17	7.6
120	3	276	45	0	Fiolent	2004-02-26	5.8
53	1	682	43	27	DimaN	2004-03-01	7.3
94	2	452	43	1	ZrenBy	2003-09-01	6.4
104	3	347	41	1	VIG	2003-12-22	7.1
55	1	610	40	71	Serge I	2008-06-21	6.8
35	1	1430	38	17	Serge I	2003-04-08	6.4
73	2	217	35	0	Fiolent	2004-06-22	6.9
56	1	853	33	43	VIG	2003-09-01	6.0
51	1	123	32	3	qwrqwr	2010-05-01	6.7
44	1	444	31	0	ZrenBy	2003-09-01	6.1
38	2	474	29	3	ZrenBy	2003-09-01	6.9
36	2	686	28	4	Serge I	2003-08-28	7.2
80	3	634	28	4	VIG	2003-06-05	6.5
47	1	1354	27	18	Serge I	2005-01-19	6.1
91	2	196	25	1	DimaN	2004-03-01	7.0
48	1	319	24	6	Serge I	2009-06-22	6.8
46	1	335	23	125	Serge I	2009-08-12	6.0
59	1	116	20	0	qwrqwr	2010-04-26	7.3
33	1	1031	17	6	Serge I	2003-04-29	6.8
32	1	698	15	4	Serge I	2003-08-28	6.4
34	1	732	14	4	Serge I	2003-08-28	6.3
167	2	1		3	qwrqwr	2010-07-28

Home
Week news

Certification

SQL exercises

HELP

Performance

Profile
References

Copyright SQL-EX © 2002-2010. All rights reserved.
contact