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oracle函数获取汉字拼音的首字母
CREATE OR REPLACE FUNCTION F_TRANS_PINYIN_CAPITAL(P_NAME IN VARCHAR2) RETURN VARCHAR2 ASV_COMPARE VARCHAR2(100);V_RETURN VARCHAR2(4000);FUNCTION F_NLSSORT(P_WORD IN VARCHAR2) RETURN VARCHAR2 ASBEGINRETURN NLSSORT(P_WORD, ‘NLS_SORT=SCHINESE_PINYIN_M‘);END;BEGINFOR 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(‘发 ‘) 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;
SELECT F_TRANS_PINYIN_CAPITAL(‘中华人民共和国‘) FROM DUAL
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