為了自己使用方便，轉其他網友寫法
create or replace function func_get_pinyin_capital(p_name in varchar2) return varchar2 as
v_compare varchar2(100);
v_return varchar2(4000);
function f_nlssort(p_word in varchar2) return varchar2 as
begin
return nlssort(p_word, 'nls_sort=schinese_pinyin_m');
end;
begin
for i in 1..length(p_name) loop v_compare := f_nlssort(substr(p_name, i, 1));
if v_compare >= f_nlssort(' 吖 ') and v_compare <= f_nlssort('驁 ') then v_return := v_return || 'a';
elsif v_compare >= f_nlssort('八 ') and v_compare <= f_nlssort('簿 ') then v_return := v_return || 'b';
elsif v_compare >= f_nlssort('嚓 ') and v_compare <= f_nlssort('錯 ') then v_return := v_return || 'c';
elsif v_compare >= f_nlssort('咑 ') and v_compare <= f_nlssort('鵽 ') then v_return := v_return || 'd';
elsif v_compare >= f_nlssort('妸 ') and v_compare <= f_nlssort('樲 ') then v_return := v_return || 'e';
elsif v_compare >= f_nlssort('發 ') and v_compare <= f_nlssort('猤 ') then v_return := v_return || 'f';
elsif v_compare >= f_nlssort('旮 ') and v_compare <= f_nlssort('腂 ') then v_return := v_return || 'g';
elsif v_compare >= f_nlssort('妎 ') and v_compare <= f_nlssort('夻 ') then v_return := v_return || 'h';
elsif v_compare >= f_nlssort('丌 ') and v_compare <= f_nlssort('攈 ') then v_return := v_return || 'j';
elsif v_compare >= f_nlssort('咔 ') and v_compare <= f_nlssort('穒 ') then v_return := v_return || 'k';
elsif v_compare >= f_nlssort('垃 ') and v_compare <= f_nlssort('擽 ') then v_return := v_return || 'l';
elsif v_compare >= f_nlssort('嘸 ') and v_compare <= f_nlssort('椧 ') then v_return := v_return || 'm';
elsif v_compare >= f_nlssort('拏 ') and v_compare <= f_nlssort('瘧 ') then v_return := v_return || 'n';
elsif v_compare >= f_nlssort('筽 ') and v_compare <= f_nlssort('漚 ') then v_return := v_return || 'o';
elsif v_compare >= f_nlssort('妑 ') and v_compare <= f_nlssort('曝 ') then v_return := v_return || 'p';
elsif v_compare >= f_nlssort('七 ') and v_compare <= f_nlssort('裠 ') then v_return := v_return || 'q';
elsif v_compare >= f_nlssort('亽 ') and v_compare <= f_nlssort('鶸 ') then v_return := v_return || 'r';
elsif v_compare >= f_nlssort('仨 ') and v_compare <= f_nlssort('蜶 ') then v_return := v_return || 's';
elsif v_compare >= f_nlssort('侤 ') and v_compare <= f_nlssort('籜 ') then v_return := v_return || 't';
elsif v_compare >= f_nlssort('屲 ') and v_compare <= f_nlssort('鶩 ') then v_return := v_return || 'w';
elsif v_compare >= f_nlssort('夕 ') and v_compare <= f_nlssort('鑂 ') then v_return := v_return || 'x';
elsif v_compare >= f_nlssort('丫 ') and v_compare <= f_nlssort('韻 ') then v_return := v_return || 'y';
elsif v_compare >= f_nlssort('帀 ') and v_compare <= f_nlssort('咗 ') then v_return := v_return || 'z';
else v_return := v_return ||substr(p_name, i, 1);
end if;
end loop;
return v_return;
end;
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