Command Reference : String and Date Function Reference
Syntax: @eqna(str1, str2)
Argument 1: string, str1
Argument 2: string, str2
Return: integer
Tests for equality of str1 and str2, treating null strings as ordinary blank strings, and not as missing values. Strings which test as equal return a 1, and 0 otherwise.
@eqna("abc", "abc")
returns a 1, while
@eqna("", "def")
returns a 0.
See also @isempty and @neqna.