CREATE OR REPLACE FUNCTION F_PINYIN(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..NVL(LENGTH(P_NAME), 0) 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(fā)') 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';
 END IF;
END LOOP;
RETURN V_RETURN;

END;

select f_pinyin('中國人民') from dual;