防止sql注入,过滤敏感关键字

//sql过滤关键字   
public static bool CheckKeyWord(string sWord)
    {
       //过滤关键字
        string StrKeyWord = @"select|insert|delete|from|count\(|drop table|update|truncate|asc\(|mid\(|char\(|xp_cmdshell|exec master|netlocalgroup administrators|:|net user|""|or|and";
     //过滤关键字符
     string StrRegex = @"[-|;|,|/|\(|\)|\[|\]|}|{|%|\@|*|!|']";
        if (Regex.IsMatch(sWord, StrKeyWord, RegexOptions.IgnoreCase) || Regex.IsMatch(sWord, StrRegex))
            return true;
        return false;
    }