oracle 推断字符是否为字母
时间:2021-07-01 10:21:17
帮助过:17人阅读
create or replace function ischar(chr varchar2) return varchar2 is
ischr varchar2(5);
begin
select case
when ascii(chr) between 65 and 122 THEN
‘true‘
else
‘false‘
end
into ischr
from dual;
return ischr;
end;
oracle 推断字符是否为字母
标签:oracle article select varchar2 arc sci class asc when