sql server - How can I modify my string comparison algorithm to reduce the 'significance' of digits? -


i have sql clr table valued function accepts 2 string parameters purpose of comparing company names , returning match score outcome.

this c# function i'm using determine likelyhood of 2 strings matching:

this works great, because of simplicity of code, comparing hn felt 09 as hn felt 01 as giving high percentage right want reduce outcome 50% if difference bwteen strings digit or digits. how achieve below function?

public static decimal comparetext(string string1, string string2) {     // more string cleaning     string1 = string1.replace(",", " ").replace(".", " ").replace("/", " ").trim();     string1 = encoding.ascii.getstring(encoding.getencoding("cyrillic").getbytes(string1));     string1 = string1.replace("  ", " |").replace("| ", "").replace("|", "");     string1 = wordfunctions.removeduplicatewords(string1);      string2 = string2.replace(",", " ").replace(".", " ").replace("/", " ").trim();     string2 = encoding.ascii.getstring(encoding.getencoding("cyrillic").getbytes(string2));     string2 = string2.replace("  ", " |").replace("| ", "").replace("|", "");     string2 = wordfunctions.removeduplicatewords(string2);      string[] string1separatewords = string1.split(' ');     string[] string2separatewords = string2.split(' ');      int string1wordcount = 0;     int string2wordcount = 0;     decimal theresult = 0;      string1wordcount = string1separatewords.length;     string2wordcount = string2separatewords.length;      int samewordcount = 0;      foreach (string string1word in string1separatewords)     {         if (string2separatewords.contains(string1word)) { samewordcount++; }     }      if (string1wordcount > string2wordcount) { theresult = (decimal)samewordcount / string1wordcount; }     else if (string2wordcount > string1wordcount) { theresult = (decimal)samewordcount / string2wordcount; }     else if (string1wordcount == string2wordcount) { theresult = (decimal)samewordcount / string1wordcount; }     else { theresult = 0; }      return (theresult * 100); }

this part compares words (simple works):

int samewordcount = 0;

    foreach (string string1word in string1separatewords)     {         if (string2separatewords.contains(string1word)) { samewordcount++; }     }

i'm not able work out how check mismatches in digits


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