Takes a string as an argument and returns an alias name to the function that calls @ALIAS.
@ALIAS (function_name)
Because functions that take strings as arguments may not function correctly if the string matches a member alias, use the function @ALIAS to pass member alias names as strings, for example when passing alias names as strings to functions such as @ISUDA, @UDA, @CONCATENATE, @SUBSTRING, @MATCH, or @NAME.
For example, if the value "US$" is both an alias and a user-defined attribute, pass the string using @ALIAS:
IF(@ISUDA(@ALIAS("US$"))) ... ENDIF
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