Elmasri R., Navathe S.B. Fundamentals of Database Systems
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content analysis, 1024
ranking, 1000
Web query interface integration,
1023
Web search and analysis
analyzing link structure of Web
pages, 1020–1021
comparing with information
retrieval, 1018–1019
HITS ranking algorithm,
1021–1022
overview of, 1018
PageRank algorithm, 1021
practical uses of Web analysis,
1027–1028
searching the Web, 1020
Web content analysis, 1022–1025
Web searches combining brows-
ing and retrieval, 1000
Web usage analysis, 1025–1027
Web security, 1028
Web servers
middle tier in three-tier architec-
ture, 48
specialized servers in client/server
architecture, 45
Web Services Description Language
(WSDL), 436
Web spamming, 1028
Web structure analysis
analyzing link structure of Web
pages, 1020–1022
types of Web analysis, 1019
Web usage analysis
pattern analysis phase of, 1027
pattern discovery phase of,
1026–1027
preprocessing phase of,
1025–1026
types of Web analysis, 1019
Well-formed XML, 422–425
WHERE clause
DELETE command, 109
explicit sets of values in, 122
missing or unspecified, 102
in SQL retrieval queries, 129–130
UPDATE command, 109–110
Wide area networks (WANs), 879
Wildcard (*)
types of queries in IR systems,
1008–1009
using with XPath, 433
WITH CHECK OPTION,view
updates and, 137
WordNet thesaurus, 1011
Wound-wait transaction timestamp,
786
Wrappers, structured data extrac-
tion and, 1022
Write-ahead logging (WAL),
810–812
Write command, hard disks and,
591
Write phase, of optimistic concur-
rency control, 794
Write-set, of transactions, 747
Write timestamp, 789
Write-write conflicts, in transaction
schedules, 757
write_item(X), 746
WSDL (Web Services Description
Language), 436
XML access control, 853–854
XML declaration, 423
XML (eXtended Markup Language)
data model, 51
interchanging data on Web using,
24
XML (Extensible Markup Language)
bibliographic references, 443
converting graphs into trees, 441
hierarchical (tree) data model,
420–422
hierarchical XML views over flat
or graph-based data, 436–440
languages, 432
languages related to, 436
overview of, 415–416
storing/extracting XML docu-
ments from databases,
431–432, 442
structured, semistructured, and
unstructured data, 416–420
summary and exercises, 442–443
well-formed and valid docu-
ments, 422–425
XML schema language, 425–430
XPath, 432–434
XQuery, 434–435
XML schema language, 425–430
example schema file, 426–428
list of concepts in, 428–429
overview of, 425
XPath, 432–434
XQuery, 434–435
XSL (Extensible Stylesheet
Language), 415, 436
XSLT (Extensible Stylesheet
Language Transformations),
415, 436
1172 Index