NEXT_HTTP_VARIABLE( var-name )

LONG VARCHAR

This function iterates over the HTTP variables included within a request. Calling it with NULL causes it to return the name of the first variable. Subsequent variables are retrieved by passing the function the name of the previous variable. This function returns NULL when called with the name of the final variable or when not called from a web service.

Calling this function repeatedly returns all the variables exactly once, but not necessarily in the order they appear in the HTTP request. The variables url or url1, url2, ..., url10 are included if URL PATH is set to ON or ELEMENTS, respectively.

• HTTP_VARIABLE function [Web service]
• NEXT_HTTP_HEADER function [Web service]
• sa_http_variable_info system procedure
• Accessing client-supplied HTTP variables and headers
• Web services functions
• Web services system procedures

When used within a stored procedure that is called by an HTTP web service, the following example returns the name of the first HTTP variable.

BEGIN
DECLARE variable_name LONG VARCHAR;
DECLARE variable_value LONG VARCHAR;
SET variable_name = NULL;
SET variable_name = NEXT_HTTP_VARIABLE( variable_name );
SET variable_value = HTTP_VARIABLE( variable_name );
END;