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oracle中文与数字正则实例代码

时间:2021-07-01 10:21:17 帮助过:54人阅读

在oracle中regexp_like(VALID_STR ,'^[+-]?\d+(\.\d)?\d*$'); 是用来正数字的,中文用new Regex("[\u4e00-\u9fa5]+", RegexOptions.Compiled);来处理

在oracle中regexp_like(VALID_STR ,'^[+-]?\d+(\.\d)?\d*$'); 是用来正数字的,中文用new Regex("[\u4e00-\u9fa5]+", RegexOptions.Compiled);来处理

在oracle中regexp_like(valid_str ,'^[+-]?d+(.d)?d*$'); 是用来正数字的,中文用new regex("[u4e00-u9fa5]+", regexoptions.compiled);来处理

create or replace function isnumber(valid_str in varchar2)

  return number

  is

  cursor valid_number is

  select 1 from dual where regexp_like(valid_str ,'^[+-]?d+(.d)?d*$');

  isnumber_ valid_number%rowtype;

  begin

  open valid_number;

  fetch valid_number into isnumber_;

  if (valid_number%found) then

  close valid_number;

  return 1;

  else

  close valid_number;

  return 0;

  end if;

  end isnumber;

解决正则中文

public static int getlength(string strsource)
{
regex regex = new regex("[u4e00-u9fa5]+", regexoptions.compiled);
int nlength = strsource.length;

for (int i = 0; i < strsource.length; i++)
{
if (regex.ismatch(strsource.substring(i, 1)))
{
nlength++;
}
}

return nlength;
}

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