SQL 拼音搜索

【个人收藏】

1.将汉字转拼音首字母自定义 Function

1drop function F_GET_PINYIN
2
3CREATE OR REPLACE FUNCTION F_GET_PINYIN(P_NAME IN VARCHAR2) RETURN VARCHAR2 AS
4V_COMPARE VARCHAR2(50);
5V_RETURN VARCHAR2(100);
6
7FUNCTION F_NLSSORT(P_WORD IN VARCHAR2) RETURN VARCHAR2 AS
8BEGIN
9RETURN NLSSORT(P_WORD, 'NLS_SORT=SCHINESE_PINYIN_M');
10END;
11BEGIN
12FOR I IN 1..LENGTH(P_NAME) LOOP
13V_COMPARE := F_NLSSORT(SUBSTR(P_NAME, I, 1));
14IF V_COMPARE >= F_NLSSORT(' 吖 ') AND V_COMPARE <= F_NLSSORT('驁 ') THEN
15V_RETURN := V_RETURN || 'a';
16ELSIF V_COMPARE >= F_NLSSORT('八 ') AND V_COMPARE <= F_NLSSORT('簿 ') THEN
17V_RETURN := V_RETURN || 'b';
18ELSIF V_COMPARE >= F_NLSSORT('嚓 ') AND V_COMPARE <= F_NLSSORT('錯 ') THEN
19V_RETURN := V_RETURN || 'c';
20ELSIF V_COMPARE >= F_NLSSORT('咑 ') AND V_COMPARE <= F_NLSSORT('鵽 ') THEN
21V_RETURN := V_RETURN || 'd';
22ELSIF V_COMPARE >= F_NLSSORT('妸 ') AND V_COMPARE <= F_NLSSORT('樲 ') THEN
23V_RETURN := V_RETURN || 'e';
24ELSIF V_COMPARE >= F_NLSSORT('发 ') AND V_COMPARE <= F_NLSSORT('猤 ') THEN
25V_RETURN := V_RETURN || 'f';
26ELSIF V_COMPARE >= F_NLSSORT('旮 ') AND V_COMPARE <= F_NLSSORT('腂 ') THEN
27V_RETURN := V_RETURN || 'g';
28ELSIF V_COMPARE >= F_NLSSORT('妎 ') AND V_COMPARE <= F_NLSSORT('夻 ') THEN
29V_RETURN := V_RETURN || 'h';
30ELSIF V_COMPARE >= F_NLSSORT('丌 ') AND V_COMPARE <= F_NLSSORT('攈 ') THEN
31V_RETURN := V_RETURN || 'j';
32ELSIF V_COMPARE >= F_NLSSORT('咔 ') AND V_COMPARE <= F_NLSSORT('穒 ') THEN
33V_RETURN := V_RETURN || 'k';
34ELSIF V_COMPARE >= F_NLSSORT('垃 ') AND V_COMPARE <= F_NLSSORT('擽 ') THEN
35V_RETURN := V_RETURN || 'l';
36ELSIF V_COMPARE >= F_NLSSORT('嘸 ') AND V_COMPARE <= F_NLSSORT('椧 ') THEN
37V_RETURN := V_RETURN || 'm';
38ELSIF V_COMPARE >= F_NLSSORT('拏 ') AND V_COMPARE <= F_NLSSORT('瘧 ') THEN
39V_RETURN := V_RETURN || 'n';
40ELSIF V_COMPARE >= F_NLSSORT('筽 ') AND V_COMPARE <= F_NLSSORT('漚 ') THEN
41V_RETURN := V_RETURN || 'o';
42ELSIF V_COMPARE >= F_NLSSORT('妑 ') AND V_COMPARE <= F_NLSSORT('曝 ') THEN
43V_RETURN := V_RETURN || 'p';
44ELSIF V_COMPARE >= F_NLSSORT('七 ') AND V_COMPARE <= F_NLSSORT('裠 ') THEN
45V_RETURN := V_RETURN || 'q';
46ELSIF V_COMPARE >= F_NLSSORT('亽 ') AND V_COMPARE <= F_NLSSORT('鶸 ') THEN
47V_RETURN := V_RETURN || 'r';
48ELSIF V_COMPARE >= F_NLSSORT('仨 ') AND V_COMPARE <= F_NLSSORT('蜶 ') THEN
49V_RETURN := V_RETURN || 's';
50ELSIF V_COMPARE >= F_NLSSORT('侤 ') AND V_COMPARE <= F_NLSSORT('籜 ') THEN
51V_RETURN := V_RETURN || 't';
52ELSIF V_COMPARE >= F_NLSSORT('屲 ') AND V_COMPARE <= F_NLSSORT('鶩 ') THEN
53V_RETURN := V_RETURN || 'w';
54ELSIF V_COMPARE >= F_NLSSORT('夕 ') AND V_COMPARE <= F_NLSSORT('鑂 ') THEN
55V_RETURN := V_RETURN || 'x';
56ELSIF V_COMPARE >= F_NLSSORT('丫 ') AND V_COMPARE <= F_NLSSORT('韻 ') THEN
57V_RETURN := V_RETURN || 'y';
58ELSIF V_COMPARE >= F_NLSSORT('帀 ') AND V_COMPARE <= F_NLSSORT('咗 ') THEN
59V_RETURN := V_RETURN || 'z';
60END IF;
61END LOOP;
62RETURN V_RETURN;
63END;
64
65select f_get_pinyin('中国') as 拼音码 from dual;

2

3

4