Get the next HTTP variable name.

Syntax

NEXT_HTTP_VARIABLE( var-name )

Parameters

Returns

LONG VARCHAR

Remarks

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, 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.

See also

• -xs server option
• Working with variables
• HTTP_DECODE function [HTTP]
• HTTP_ENCODE function [HTTP]
• HTTP_HEADER function [HTTP]
• HTTP_VARIABLE function [HTTP]
• NEXT_HTTP_HEADER function [HTTP]
• SQL Anywhere web services
• Web services functions
• Web services system procedures

Standards and compatibility

Example

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;
SET variable_name = NULL;
SET variable_name = NEXT_HTTP_VARIABLE( variable_name )
END;