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    • 4. 发明授权
    • Heterogeneous database system with data source extensibility and
alteration of database functions
    • 具有数据源可扩展性和数据库功能更改的异构数据库系统
    • US5956727A
    • 1999-09-21
    • US929809
    • 1997-09-15
    • Tu-An ChengJames Charles KleeweinEileen Tien LinTina Louise MukaiYun WangSteven John Watts
    • Tu-An ChengJames Charles KleeweinEileen Tien LinTina Louise MukaiYun WangSteven John Watts
    • G06F17/30
    • G06F17/30566Y10S707/99933Y10S707/99943Y10S707/99945
    • A heterogeneous database system is described which includes plural database systems, one of the database systems acting as an interface (i.e., system manager). The system manager performs functions which provide an application program with transparent access to the entire database system. The system manager includes a memory for storing (i) a matrix of functional capabilities of each of the plural databases, (ii) a catalog of functions that are supportable by various databases and (iii) and entry matrix for providing an interface function between a user and the system manager. A processor is present in the system manager; and is responsive to a user entry, via the entry matrix, with respect to a functional capability of one of the plural databases, to alter a matrix of functional capabilities pertaining to the database. The alteration is carried out in accordance with a corresponding functional capability entry in the catalog. If a user entry is received which refers to a database for which no entry exists in the matrix of functional capabilities, the system manager presents an entry matrix in a form which reflects default functional capabilities. Thereafter, the default capabilities may be altered by a system administrator to reflect the capabilities of the new database.
    • 描述了一种异构数据库系统,其包括多个数据库系统,数据库系统之一充当接口(即系统管理器)。 系统管理员执行向整个数据库系统提供透明访问的应用程序的功能。 系统管理器包括用于存储(i)多个数据库中的每一个的功能性能矩阵的存储器,(ii)可由各种数据库支持的功能目录,以及(iii)和用于提供接口功能之间的接口功能的输入矩阵 用户和系统管理员。 处理器存在于系统管理器中; 并且相对于所述多个数据库之一的功能能力经由所述条目矩阵来响应于用户条目,以改变与所述数据库相关的功能能力的矩阵。 该变更根据目录中相应的功能能力条目进行。 如果接收到指向功能能力矩阵中没有条目的数据库的用户条目,则系统管理器以反映默认功能能力的形式呈现条目矩阵。 此后,系统管理员可以更改默认功能以反映新数据库的功能。
    • 7. 发明授权
    • Method, system, and program for transferring data
    • 用于传输数据的方法,系统和程序
    • US06981117B2
    • 2005-12-27
    • US10354691
    • 2003-01-29
    • Vishal PatelTu-An Cheng
    • Vishal PatelTu-An Cheng
    • G06F3/06G06F12/00G06F12/14
    • G06F3/0647G06F3/0617G06F3/067
    • Provided are a method, system, and program for transferring data from a source storage unit, wherein storage units are configured within a storage system. A data transfer operation is processed to transfer data from source storage blocks in a source storage unit to corresponding target storage blocks in a target storage unit. For each source storage block, before transferring data from one source storage block to the corresponding target storage block, indication is made that the source storage block is in a locked state. Data in the source storage block in the locked state is not accessible to a host data request, and wherein data in storage blocks that are not in the locked state is accessible to a host data request while the data transfer operation is pending. Indication is further made that the source storage block is not in the locked state after transferring the data in the source storage block to the corresponding target storage block the data in the source storage block to the corresponding target storage block.
    • 提供了一种用于从源存储单元传送数据的方法,系统和程序,其中在存储系统内配置存储单元。 处理数据传输操作以将数据从源存储单元中的源存储块传送到目标存储单元中的对应目标存储块。 对于每个源存储块,在将数据从一个源存储块传送到相应的目标存储块之前,指示源存储块处于锁定状态。 处于锁定状态的源存储块中的数据对于主机数据请求是不可访问的,并且其中当数据传输操作待处理时,不处于锁定状态的存储块中的数据可被主机数据请求访问。 进一步指示在将源存储块中的数据传输到对应的目标存储块之后,源存储块不处于锁定状态,源存储块中的数据传输到相应的目标存储块。