案例 備註必須大寫
select * from lz_dwjbxx where ( getpycode(dwmc) like '%hf%' or dwmc like '%hf%')
create function "getpycode" (p1 varchar2) return varchar2 as
/** 獲得漢字拼音首字母
* 入口引數：漢字字串、是否只取第乙個漢字的拼音首字母
*/char1 varchar2(2);
char2 varchar2(2);
len integer;
n1 integer;
n2 integer;
csound varchar2(32767);
begin
csound:='';
if p1 is null then
return csound;
else
len := length(p1);
end if;
if p1 ='' then
return csound;
else
len := length(p1);
end if;
if len=null then
return csound;
else
len:=len;
end if;
for i in 1..len loop
char2 := substr(p1, i, 1);
n1 := floor(ascii(char2) / 256);
n2 := mod(ascii(char2), 256);
if n1 = 0 and n2 <= 129 then
char1 := char2;
elsif n2 <> 127 and n2 <> 255 and not (n2 >= 0 and n2 <= 63) then
select
case
when char2 >= '丂' and char2 < '芭' then 'a'
when char2 >= '芭' and char2 < '擦' then 'b'
when char2 >= '擦' and char2 < '搭' then 'c'
when char2 >= '搭' and char2 < '蛾' then 'd'
when char2 >= '蛾' and char2 < '發' then 'e'
when char2 >= '發' and char2 < '噶' then 'f'
when char2 >= '噶' and char2 < '哈' then 'g'
when char2 >= '哈' and char2 < '擊' then 'h'
when char2 >= '擊' and char2 < '喀' then 'j'
when char2 >= '喀' and char2 < '垃' then 'k'
when char2 >= '垃' and char2 < '媽' then 'l'
when char2 >= '媽' and char2 < '拿' then 'm'
when char2 >= '拿' and char2 < '哦' then 'n'
when char2 >= '哦' and char2 < '啪' then 'o'
when char2 >= '啪' and char2 < '期' then 'p'
when char2 >= '期' and char2 < '然' then 'q'
when char2 >= '然' and char2 < '撒' then 'r'
when char2 >= '撒' and char2 < '塌' then 's'
when char2 >= '塌' and char2 < '挖' then 't'
when char2 >= '挖' and char2 < '稀' then 'w'
when char2 >= '稀' and char2 < '壓' then 'x'
when char2 >= '壓' and char2 < '匝' then 'y'
when char2 >= '匝' and char2 <= '鼱' then 'z'
endinto char1
from dual;
else
char1 := 'er';
end if;
csound := csound || char1;
end loop;
return csound;
end;
/
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