数据库程序设计中字段定位修改技巧

A technique on field location modification in data base programme design

程序修改DBF数据库中记录的某一字段，一般是通过修改全部字段来实现的，即从第一字段起逐一修改直至结束。文章介绍利用数据库率段名与字段内容之间的内在联系，运用宏代变量函数和参数传递技巧，从而实现指定字段修改的方法。

The programme modification of a field recorded in the FOXBASE data base is generally made through modifying all the fields, namely from the first field one by one to the last field. A new methckl is intro-duced herein for the modification of a specific field through the internal relation between the field name and the field content in the data base and through macrosubstittition variable functions and parameter transitions.