会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Database access system
    • 数据库访问系统
    • US06212513B1
    • 2001-04-03
    • US09103410
    • 1998-06-24
    • Takaaki ShiratoriAkio KidoShigeru TachikawaTsuneo Mochizuki
    • Takaaki ShiratoriAkio KidoShigeru TachikawaTsuneo Mochizuki
    • G06F1730
    • G06F17/30439Y10S707/99932Y10S707/99933Y10S707/99934
    • The invention enables transformation of an SQL statement of CHAR type to another SQL statement of another data type adequate for a database that is defined by a character string type other than CHAR type, thereby enabling to access the database using an SQL statement of CHAR type. At a call level interface (CLI driver), a literal such as a condition clause of an SQL SELECT statement that is included in an application program, a column value of an UPDATE statement or the like is passed to a function of the call level interface as a parameter. The call level interface examines a character type and a character code included in the passed literal, selects the most probable one of character string data types of a database to be accessed, modifies its access syntax in line with the selected data type and attempts to access the database. Accessing of the database is attempted while sequentially modifying the access syntax in the order of probability.
    • 本发明允许将CHAR类型的SQL语句转换为另一种数据类型的另一种数据类型的SQL语句,该数据类型适用于由CHAR类型以外的字符串类型定义的数据库,从而可以使用CHAR类型的SQL语句访问数据库。 在调用级别接口(CLI驱动程序)中,应用程序中包含的SQL SELECT语句的条件子句,UPDATE语句的列值等字符传递给调用级接口的函数 作为参数。 调用级别接口检查包含在传递的文字中的字符类型和字符代码,选择要访问的数据库的最可能的字符串数据类型之一,根据所选数据类型修改其访问语法,并尝试访问 数据库。 在按概率顺序依次修改访问语法的同时尝试访问数据库。