protected override void ReadCore(DateTime t1, DateTime t2)
{
SQLiteServer svr = new SQLiteServer(fileName);
Clear();
string sql = "SELECT * from " + svr.PortableTableName(this.Table.TableName);
if (t1 != MinDateTime || t2 != MaxDateTime)
{
sql += " WHERE datetime >= " + svr.PortableDateString(t1, TimeSeriesDatabase.dateTimeFormat)
+ " AND "
+ " datetime <= " + svr.PortableDateString(t2, TimeSeriesDatabase.dateTimeFormat);
}
sql += " order by datetime ";
svr.FillTable(this.Table, sql);
}