xbase "=" use SET("COLLATE") SQL "=" and "==" uses SET("COLLATE") xbase "s1=s2" with SET("EXACT")=OFF, if Len(s1)>=LEN(S2), then it is equal to , SQL "s1=s2" with SET("ANSI")=OFF xbase "s1=s2" with SET("EXACT")=ON, is fully equal to , SQL "s1==s2" OR "s1=s2" with SET("ANSI")=ON ******* xBase "==" don't use SET("COLLATE") xBase "LIKE()" don't use SET("COLLATE") SQL " LIKE " don't use SET("COLLATE") xbase "s1==s2" or "LIKE(s1,s2)", is fully equal to , SQL "s1 LIKE s2"