package mytools.sqlclient;import mytools.util.ExecInfo;import com.borland.dx.dataset.*;/***數據庫連接接口**/public interface IConnection{   public ExecInfo execSql(String ps_sql);   public DataSetData getDataSetData(String ps_sql);   public DataSetData getDataSetData(int pi_page, int pi_pageRec, String ps_sql);   public DataSetData saveDataChanges(String ps_sql, DataSetData po_changes);   public int commit();   public int rollback();   public void close();}