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array to csv

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Release: 2016-06-07 14:54:58
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将字符数组,转化成CSV的格式 PL/SQL CSV type t_str_array as table of varchar2(4000);function array_to_csv (p_values in t_str_array, p_separator in varchar2 := g_default_separator) return varchar2as l_value varchar2(32000); l_returnvalue varc

将字符数组,转化成CSV的格式 PL/SQL CSV
type t_str_array as table of varchar2(4000);
function array_to_csv (p_values in t_str_array,
                       p_separator in varchar2 := g_default_separator) return varchar2
as
  l_value       varchar2(32000);
  l_returnvalue varchar2(32000);
begin

  /*

  Purpose:      convert array of values to CSV

  Remarks:

  Who     Date        Description
  ------  ----------  --------------------------------
  MBR     31.03.2010  Created
  fartpig 07.03.2011  noted
  */
  --遍历值 数组
  for i in p_values.first .. p_values.last loop    
    l_value := p_values(i);
    --如果其中包含了 分割符号,
    if instr(l_value, p_separator) > 0 then
      --使用 双引号 将其包括起来
      l_value := '"' || l_value || '"';
    end if;
    --如果 是第一次 赋值
    if l_returnvalue is null then
      --直接 赋值
      l_returnvalue := l_value;
    else
      --使用 分隔符, 进行相应的 值的分割
      l_returnvalue := l_returnvalue || p_separator || l_value;
    end if;
  end loop;

  return l_returnvalue;

end array_to_csv;
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