Get the next HTTP header name.
NEXT_HTTP_HEADER( header-name )
header-name The name of the previous header. If header-name is NULL, this function returns the name of the first HTTP header.
This function iterates over the HTTP headers included within a request and returns the next HTTP header name. Calling it with NULL causes it to return the name of the first header. Subsequent headers are retrieved by passing the function the name of the previous header. This function returns NULL when called with the name of the last header, or when not called from a web service.
Calling this function repeatedly returns all the header fields exactly once, but not necessarily in the order they appear in the HTTP request.
SQL/2003 Vendor extension.
When used within a stored procedure that is called by an HTTP web service, the following example returns the name of the first HTTP header.
BEGIN DECLARE header_name LONG VARCHAR; SET header_name = NULL; SET header_name = NEXT_HTTP_HEADER( header_name ) END;
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