Method and apparatus for extending a relational database management
system using a federated coordinator
    1.
    发明授权
    Method and apparatus for extending a relational database management system using a federated coordinator 失效
    使用联合协调器来扩展关系数据库管理系统的方法和装置

    公开(公告)号:US5873083A

    公开(公告)日:1999-02-16

    申请号:US943837

    申请日:1997-10-03

    IPC分类号: G06F17/30

    摘要: A method and apparatus for providing access to object data stored in an object server in response to a database query. The method comprises the steps of receiving a database query comprising a relational operation with a data surrogate identifying object data stored in an object server, transforming the database query into relational database commands, transmitting the relational database commands to the relational database management system, receiving a response table from the relational database management system, compiling an answer set from the response table comprising an object locator responsive to the database query, and transmitting the answer set to the client.

    摘要翻译: 一种用于响应于数据库查询提供对存储在对象服务器中的对象数据的访问的方法和装置。 该方法包括以下步骤:接收包括关系操作的数据库查询,数据代理识别存储在对象服务器中的对象数据,将数据库查询转换为关系数据库命令,将关系数据库命令传送到关系数据库管理系统, 来自关系数据库管理系统的响应表,响应于数据库查询从包括对象定位器的响应表编译答案集,并将答案集发送给客户端。

    Method and apparatus for managing shared data using a data surrogate and
obtaining cost parameters from a data dictionary by evaluating a parse
tree object
    2.
    发明授权
    Method and apparatus for managing shared data using a data surrogate and obtaining cost parameters from a data dictionary by evaluating a parse tree object 失效
    用于使用数据代理管理共享数据并通过评估解析树对象从数据字典获得成本参数的方法和装置

    公开(公告)号:US5689698A

    公开(公告)日:1997-11-18

    申请号:US546283

    申请日:1995-10-20

    IPC分类号: G06F17/30

    摘要: A method and apparatus for providing access to object data stored in an object server in response to a database query. The method comprises the steps of receiving a database query comprising a relational operation with a data surrogate identifying object data stored in an object server, transforming the database query into relational database commands, transmitting the relational database commands to the relational database management system, receiving a response table from the relational database management system, compiling an answer set from the response table comprising an object locator responsive to the database query, and transmitting the answer set to the client.

    摘要翻译: 一种用于响应于数据库查询提供对存储在对象服务器中的对象数据的访问的方法和装置。 该方法包括以下步骤:接收包括关系操作的数据库查询,数据代理识别存储在对象服务器中的对象数据,将数据库查询转换为关系数据库命令,将关系数据库命令传送到关系数据库管理系统, 来自关系数据库管理系统的响应表,响应于数据库查询从包括对象定位器的响应表编译答案集,并将答案集发送给客户端。