EXISTSNODE (
[ filterExpr, ]
query,
nsmap
)
Syntax Element
- filterExpr
- An optional filter expression that allows for streamed evaluation of the query expression. filterExpr is required if the query is being evaluated over a large XML value.
- filterExpr must be VARCHAR(n), where the maximum supported size (n) is 512.
- query
- The XPath or XQuery query string.
- query must be VARCHAR(n), where the maximum supported size (n) is 8192.
- nsmap
- Namespace declarations.
- nsmap must be VARCHAR(n), where the maximum supported size (n) is 1024.