vista avg not updating - Updating clob in pl sql

Pretty-printing of results has a performance cost in result size and processing time, because it requires building a full DOM and retaining or generating appropriate whitespace formatting information.For this reason, it is Note: As mentioned in "Conventions", many examples in this book show results in pretty-printed form to promote readability, even when the results of the operation would not be pretty-printed in reality.

updating clob in pl sql-60

In the case of schema-based XML data, these SQL functions perform partial validation on the result, and, where appropriate, argument values are also checked for compatibility with the XML schema. An error is never raised if no nodes are targeted, but updating SQL functions may raise an error if an XPath-expression argument targets inappropriate nodes, such as attribute nodes or text nodes.

SELECT extract(OBJECT_VALUE, '/Purchase Order/Actions/Action[1]') ACTION FROM purchaseorder WHERE exists Node(OBJECT_VALUE, '/Purchase Order[Reference="SBELL-2002100912333601PDT"]') = 1; ACTION -------------------------------- ') WHERE exists Node(OBJECT_VALUE, '/Purchase Order[Reference="SBELL-2002100912333601PDT"]') = 1; 1 row updated.

If multiple text nodes are referenced in the XPath expression, the text nodes are collapsed into a single text node value.

SELECT extract(OBJECT_VALUE, '/Purchase Order/Reference') "REFERENCE" FROM purchaseorder WHERE exists Node(OBJECT_VALUE, '/Purchase Order[Special Instructions="Expedite"]') = 1; REFERENCE ------------------------------------------------------------ attempts to determine the proper return type from the XML schema associated with the document, or from other information such as the SQL/XML view.

This is also called to insert or delete XML data by replacing a parent node in its entirety; this will work, but it is less efficient than using one of the other functions, which perform more localized updates.

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