大型书店实现对其拥有书目进行详细的管理，实现书目进出的详细记录，应实现以下功能：

(1).书目录入：将购买的书目按要求的指标将其录入数据库中。

(2).查询功能：实现按书目的编码、名称等指标进行书目情况的查询。

(3).修改功能：当书目的某个或者某些指标录入错误时，能对其进行修改。

(4).删除功能：当某些书目的记录不想保留或录入错误时，能将其删除掉。

-To achieve its large-scale bookstore owner to conduct a detailed bibliography management and bibliographic access to detailed records, should be to achieve the following functions:

(1). Bibliographical entry: the bibliography will be required to purchase the target entry to the database.

(2). The inquiry: to achieve by bibliographic code, name and other indicators of the query bibliography.

(3). Modification function: When a bibliographic entry error or some indicators can be modified.

(4). Delete function: When certain of the bibliographic record or do not want to keep entry error, it can be removed.