Using SQL extensibility for processing dynamically typed XML...

Details Using SQL extensibility for processing dynamically typed XML... Using SQL extensibility for processing dynamically typed XML...

2007-07-12

2010-11-16

Mofiz, Apu M (Department: 2161)

Data processing: database and file management or data structures

Database and file access

Record, file, and data search and comparisons

C026S003000

Reexamination Certificate

active

07836066

ABSTRACT:
XQuery queries that include functions that operate on dynamically typed XML data are rewritten into compilable SQL constructs. XML data that is dynamically typed is XML data for which a specific XML data type cannot be determined at compile time and in fact may vary. In general, XQuery queries are rewritten into SQL queries that use SQL constructs in lieu of XQuery constructs. The SQL constructs include an “SQL polymorphic function” that is defined or recognized by a database system as valid syntax for an SQL query. The rewritten query applies the XML data to the SQL polymorphic function, but the XML data has been typed as XMLType, a data type recognized by SQL standards.

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