oledb封装类仿MFC的CRecordset-oledb Packaging category imitation MFC CRecordset

ODBC管理学生档案，相关类为CDatabase和CRecordSet，前者主要实现与数据源的连接，后者实现具体记录操作-ODBC management of student files, related category CDatabase and CRecordSet. and the former main source of data connectivity, which records the achievement of specific operation