时间:2021-07-01 10:21:17 帮助过:11人阅读
欢迎进入Oracle社区论坛,与200万技术人员互动交流 >>进入 16进制串==ASCII字符串 要区分字符集,以中文字符为例,对于数据库字符集是中文,要保证能够正确转回来,要有所不同。数据库字符集是中文 create or replace function HexToAsc(sIn IN varchar2)
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16进制串==>ASCII字符串
要区分字符集,以中文字符为例,对于数据库字符集是中文,要保证能够正确转回来,要有所不同。数据库字符集是中文
create or replace function HexToAsc(sIn IN varchar2)
RETURN varchar2
IS
sTmp varchar2(4000);
i integer;
x integer;
BEGIN
i:=1;
stmp:='';
loop
exit when i>length(sIn);
x:=to_number(substr(sIn,i,2),'XXXX');
if x>128 then
sTmp:=sTmp||chr(to_number(substr(sIn,i,4),'XXXX'));
i:=i+4;
else
sTmp:=sTmp||chr(to_number(substr(sIn,i,2),'XXXX'));
i:=i+2;
end if;
end loop;
return sTmp;
END;
数据库字符集是英文
create or replace function HexToAsc(sIn IN varchar2)
RETURN varchar2
IS
sTmp varchar2(4000);
i integer;
BEGIN
i:=1;
stmp:='';
loop
exit when i>length(sIn);
sTmp:=sTmp||chr(to_number(substr(sIn,i,2),'XXXX'));
i:=i+2;
end loop;
return sTmp;
END;
测试,如下:
SQL>select hextoasc(asctohex('你好ABC么')) from dual;
HEXTOASC(ASCTOHEX('你好ABC么'))
-----------------------------------------------------------
你好ABC么
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