Web Data Management
________ share the same data model and support the same functions and operators.

XQuery 1.0 and XPath 2.0
XQuery 1.0 and XPath 1.0
XQuery 2.0 and XPath 2.0
XQuery 2.0 and XPath 1.0

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Web Data Management
For XML document to be valid ?

document need not to be well formed
document need to be well formed & valid
document validity has no relationship with well formedness
document need to be well formed also

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