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Chapter 9. Developing XML Web services 203
Figure 9-18 DADX Generation
DADX operations
The proceeding discussion used a DADX document that employed a three types
of operation: query, update, and retrieveXML. The XML Collection operations use
the DXX stored procedures. The SQL operations use normal SQL SELECT,
UPDATE, INSERT, DELETE and CALL statements, and can be used for XML
Column operations by employing the DXX UDTs and UDFs. When using the
SQL operations, parameters may be defined using XSD elements as well as
simple types. For the query operation, XSD elements may be associated with the
column values in the result set. For call operations, parameters may be declared
as in, out, or in/out.
XML Collection operations:
retrieveXML
storeXML
SQL operations:
Query
Update
Call