Gets the value of an HTTP header.
HTML_HEADER ( field-name )
CIS functional compensation performance considerations apply. See “Conditions that cause processing by SQL Anywhere” in Chapter 3, “Optimizing Queries and Deletions,” in the Performance and Tuning Guide.
field-name The name of an HTTP header field.
This function returns the value of the named HTTP header field. It is used when processing an HTTP request through a Web service.
“HTTP_VARIABLE function [HTTP]”