oracle存储过程之切割字符串(一)

oracle存储过程之切割字符串

CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2 (4000)

tools包头：

create or replace package common_tool is

  -- Author  : ADMINISTRATOR
  -- Created : 2012/10/25 11:04:58
  -- Purpose : 通用工具
  
  
  function fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
    RETURN ty_str_split;

end common_tool;

tools pakage body

create or replace package body common_tool is

 
-- 功能描述：用指定分隔符切割输入的字符串，返回一维数组，每个数组元素为一个子串。
--p_str:原始字符串
--p_delimiter：分隔符
function fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
    RETURN ty_str_split
IS
    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;


end common_tool;