这是网上流传的oracle数据库split()方法的实现，我应用在自己的项目中，感觉十分不错，值得推荐，希望对大家有所帮助。
CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2 (4000);CREATE OR REPLACE FUNCTION fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2) RETURN ty_str_splitIS j INT := 0; i INT := 1; len INT := 0; len1 INT := 0; str VARCHAR2 (4000); str_split ty_str_split := ty_str_split ();BEGIN len := LENGTH (p_str); len1 := LENGTH (p_delimiter); WHILE j < len LOOP j := INSTR (p_str, p_delimiter, i); IF j = 0 THEN j := len; str := SUBSTR (p_str, i); str_split.EXTEND; str_split (str_split.COUNT) := str; IF i >= len THEN EXIT; END IF; ELSE str := SUBSTR (p_str, i, j - i); i := j + len1; str_split.EXTEND; str_split (str_split.COUNT) := str; END IF; END LOOP; RETURN str_split;END fn_split;/测试：DECLARE CURSOR c IS SELECT * FROM TABLE (CAST (fn_split ('1;;12;;123;;1234;;12345', ';;') AS ty_str_split ) ); r c%ROWTYPE;BEGIN OPEN c; LOOP FETCH c INTO r; EXIT WHEN c%NOTFOUND; DBMS_OUTPUT.put_line (r.column_value); END LOOP; CLOSE c;END;/ 结果：112123123412345
