ORACLE管道化表函数应用

1).创建包头

create or replace PACKAGE my_package is
  type res_str is table of varchar2(100);

  function splitStr(p_str in varchar2, p_split in varchar2)
    return res_str
    pipelined;
end my_package;

2).创建包体

create or replace package body my_package is

  function splitStr(p_str in varchar2, p_split in varchar2)
    return res_str
    pipelined as
    v_len number := length(p_str);
    v_start  number := 1;
    v_index  number;
  begin
    while (v_start <= v_len) loop
      v_index := instr(p_str, p_split, v_start);
    
      if v_index = 0 then
        pipe row(substr(p_str, v_start));
        v_start := v_len + 1;
      else
        pipe row(substr(p_str, v_start, v_index - v_start));
        v_start := v_index + 1;
      end if;
    end loop;
    return;
  end splitStr;
end my_package;

3).测试

select * from table(my_package.splitStr('lisi,zhangshan,wangwu,xiaoxiao,haihai,tuotuo',','));

        运行结果：