Validating xml against xsd
If it's well structured data, like dates, social security numbers, zip codes, e-mail addresses, etc.then the developer should be able to define a very strong validation pattern, usually based on regular expressions, for validating such input.This does not mean that other users cannot access this mailbox, for example when the user makes use of a service that generates a throw away email address.As the local-part of email addresses are, in fact - case sensitive, it is important to store and compare email addresses correctly.
Specifically, it is completely valid to have an mailbox address which: At the time of writing, RFC 5321 is the current standard defining SMTP and what constitutes a valid mailbox address.
If the input field comes from a fixed set of options, like a drop down list or radio buttons, then the input needs to match exactly one of the values offered to the user in the first place.
Free-form text, especially with Unicode characters, is perceived as difficult to validate due to a relatively large space of characters that need to be whitelisted.
Oracle XML DB is a set of Oracle Database technologies related to high-performance handling of XML data: storing, generating, accessing, searching, validating, transforming, evolving, and indexing.
It provides native XML support by encompassing both the SQL and XML data models in an interoperable way.
Oracle XML DB is included as part of Oracle Database starting with Oracle9 Oracle XML DB functionality is partially based on the Oracle XML Developer's Kit C implementations of the relevant XML standards, such as XML Parser, XSLT Virtual Machine, XML DOM, and XML Schema Validator.