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public class IterateSQL
{
	private int _start = 0;
	private int _end = 0;
	private int number = 0;
	private string TOP_100_PERCENT = "100 percent ";
	private string SELECT_FROM = " SELECT*FROM (";
	private string SELECT_TOP_I = "SELECT TOP $I * FROM(";
	private string SELECT_TOP_F = "SELECT TOP $F * FROM(";
	private string JOINTURE = @" WHERE maTable.id NOT IN (SELECT maTable.id FROM(";
	private string CLOSE = ") maTable)";
	private string SELECT_COUNT = "SELECT COUNT(*) FROM ( XYZ ) maTable";
	private string _sql;
	private string _where;
	private string _parameter = string.Empty;
	private List<string> _tempParameterList = new List<string>();
	private Dictionary<string, object> _finalParameterList = new Dictionary<string, object>();
	public IterateSQL(string sql, string where, string parameter)
	{
		_sql = sql;
		_where = where;
		_parameter = parameter;
	}
	
	public string TransformAndReturnSQL(int start, int end)
	{
		_start = start;
		_end = end;
		if (_parameter == null)
			_parameter = string.Empty;
		string[] split = Utils.Splitter(_parameter);
		number = split.Length;
		StringBuilder sb = new StringBuilder(" XYZ ");
		StringBuilder st = new StringBuilder();
		for (int i = 0; i < number; i++)
		{
			if (split[i].ToString() != string.Empty)
				sb.Insert(0, SELECT_FROM);
		}
		for (int i = 0; i < number; i++)
		{
			if (split[i].ToString() != string.Empty)
			{
				sb.Insert(sb.Length, _where);
				sb.Replace("@param", split[i].ToString());
			}
		}
		sb.Replace("XYZ", _sql);
		st.Append(sb.ToString());
		sb.Insert(0, SELECT_TOP_I);
		sb.Append(JOINTURE);
		sb.Append(SELECT_TOP_F);
		sb.Append(st.ToString());
		sb.Append(CLOSE);
		sb.Replace("$I", _start.ToString());
		sb.Replace("$F", _end.ToString());
		return sb.ToString();
	}
}
                                 
        
Предполагаю автор до этого писал на каком примитивном скриптовом языке и начал перенос своиего кода на диез.