Find out if a string contains only ASCII characters

Question

I need to know whether a string contains only ASCII characters. So far I use this REGEX:

DECLARE
    str VARCHAR2(100) := \'xyz\';
BEGIN
    IF REGEXP_LIKE(s         


        

Answer 1

I think I will go for one of these two

IF CONVERT(str, 'US7ASCII') = str THEN
    DBMS_OUTPUT.PUT_LINE('Pure ASCII');
END IF;



IF ASCIISTR(REPLACE(str, '\', '/')) = REPLACE(str, '\', '/') THEN
    DBMS_OUTPUT.PUT_LINE('Pure ASCII');
END IF;