System and method for performing just-in-time priming of a database cache
    1.
    发明申请
    System and method for performing just-in-time priming of a database cache 有权
    用于执行数据库高速缓存的即时启动的系统和方法

    公开(公告)号:US20060230013A1

    公开(公告)日:2006-10-12

    申请号:US11303714

    申请日:2005-12-16

    申请人: Namik Hrle James Teng

    发明人: Namik Hrle James Teng

    IPC分类号: G06F17/30

    摘要: A system for retrieving stored data and/or index pages, receives a database request, generates an access plan for the database request for accessing data rows and/or index entries according to the statement, and generates a priming process by selecting a set of data and/or index pages. The set of data and/or index pages is a super-set or the exact set of the pages needed for accessing data rows and/or index entries according to the access plan. The present system retrieves the data and/or index pages of the set before executing the database request according to the access plan. The execution of the database request is performed by scanning the index and data pages preloaded into the cache. This reduces the number of necessary disk reads during execution.

    摘要翻译: 一种用于检索存储的数据和/或索引页面的系统,接收数据库请求,根据该语句生成访问数据行和/或索引条目的数据库请求的访问计划,并通过选择一组数据来生成启动过程 和/或索引页。 一组数据和/或索引页是根据访问计划访问数据行和/或索引条目所需的超集或精确的页面集合。 根据访问计划,本系统在执行数据库请求之前检索该集合的数据和/或索引页。 通过扫描预先加载到缓存中的索引和数据页执行数据库请求。 这样可以减少执行期间所需的磁盘读取次数。

    Method and information technology infrastructure for establishing a log point for automatic recovery of federated databases to a prior point in time
    2.
    发明授权
    Method and information technology infrastructure for establishing a log point for automatic recovery of federated databases to a prior point in time 失效
    方法和信息技术基础设施,用于建立自动恢复联合数据库到先前时间点的日志点

    公开(公告)号:US07269607B2

    公开(公告)日:2007-09-11

    申请号:US10880267

    申请日:2004-06-29

    IPC分类号: G06F12/00 G06F17/30

    摘要: According to the method for establishing a log point an information technology infrastructure is provided. Transactions are performed by at least two database units of the information technology infrastructure. Then, “suspending prepare to commit”-requests are sent from said coordinating device to said database units. The log writes of all database units are suspended and recorded, whereas these log points form a global log point. Finally the log writes of all database units and all the suspended transactions are resumed.

    摘要翻译: 根据建立日志点的方法,提供信息技术基础设施。 交易由信息技术基础设施的至少两个数据库单元执行。 然后,将“暂停准备提交”请求从所述协调装置发送到所述数据库单元。 所有数据库单元的日志写入被暂停和记录,而这些日志点形成一个全局日志点。 最后,恢复所有数据库单元和所有挂起事务的日志写入。

    Enhanced identification of relevant database indices
    3.
    发明授权
    Enhanced identification of relevant database indices 有权
    加强相关数据库指标的识别

    公开(公告)号:US08161017B2

    公开(公告)日:2012-04-17

    申请号:US12418146

    申请日:2009-04-03

    IPC分类号: G06F7/00

    CPC分类号: G06F17/30442 G06F17/30336

    摘要: According to one embodiment of the present invention, a method for identifying relevant database indexes is provided. According to one embodiment of the present invention, a method includes determining the importance of a particular database transaction and storing an index name related to the transaction along with an indicator of the importance. A database transaction is initiated and the importance indicator is received in an index advisor. The index advisor then makes an index recommendation based on the index importance.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于识别相关数据库索引的方法。 根据本发明的一个实施例,一种方法包括确定特定数据库事务的重要性并存储与事务相关的索引名称以及重要性的指示符。 启动数据库事务,并在索引顾问中接收重要性指标。 然后,指数顾问根据指标的重要性提出指数推荐。

    METHOD FOR SEARCHING A DATA PAGE FOR INSERTING A DATA RECORD
    4.
    发明申请
    METHOD FOR SEARCHING A DATA PAGE FOR INSERTING A DATA RECORD 失效
    搜索用于插入数据记录的数据页的方法

    公开(公告)号:US20070168640A1

    公开(公告)日:2007-07-19

    申请号:US11620187

    申请日:2007-01-05

    IPC分类号: G06F12/00

    CPC分类号: G06F17/30598 G06F17/30492

    摘要: A method of searching a data page in a table space of a database for inserting a data record to a first table, wherein the table space comprises space map pages and sets of data pages, wherein each space map page comprises information about the available storage space of one set of data pages, wherein each space map page and the corresponding set of data pages is further assigned to a table range for each table to which at least one data page in the set of data pages belongs to, wherein the database further comprises a clustering index for the first table in the database management system, wherein the database management system comprises a space usage information database, and wherein the space usage information database holds space usage information for each table range.

    摘要翻译: 一种在数据库的表空间中搜索用于将数据记录插入到第一表的数据页的方法,其中所述表空间包括空间图页和数据页组,其中每个空间图页包括关于可用存储空间的信息 一组数据页面,其中每个空间地图页面和对应的数据页面集合进一步分配给数据页组中的至少一个数据页面所属的每个表的表范围,其中数据库还包括 数据库管理系统中的第一表的聚类索引,其中所述数据库管理系统包括空间使用信息数据库,并且其中所述空间使用信息数据库保存每个表范围的空间使用信息。

    Method and information technology infrastructure for establishing a log point for automatic recovery of federated databases to a prior point in time
    5.
    发明申请
    Method and information technology infrastructure for establishing a log point for automatic recovery of federated databases to a prior point in time 失效
    方法和信息技术基础设施,用于建立自动恢复联合数据库到先前时间点的日志点

    公开(公告)号:US20050071384A1

    公开(公告)日:2005-03-31

    申请号:US10880267

    申请日:2004-06-29

    IPC分类号: G06F11/14 G06F12/00 G06F17/30

    摘要: According to the method for establishing a log point an information technology infrastructure is provided. Transactions are performed by at least two database units of the information technology infrastructure. Then, “suspending prepare to commit”-requests are sent from said coordinating device to said database units. The log writes of all database units are suspended and recorded, whereas these log points form a global log point. Finally the log writes of all database units and all the suspended transactions are resumed.

    摘要翻译: 根据建立日志点的方法,提供信息技术基础设施。 交易由信息技术基础设施的至少两个数据库单元执行。 然后,将“暂停准备提交”请求从所述协调装置发送到所述数据库单元。 所有数据库单元的日志写入被暂停和记录,而这些日志点形成一个全局日志点。 最后,恢复所有数据库单元和所有挂起事务的日志写入。

    ENHANCED IDENTIFICATION OF RELEVANT DATABASE INDICES
    6.
    发明申请
    ENHANCED IDENTIFICATION OF RELEVANT DATABASE INDICES 有权
    增强相关数据库指标的识别

    公开(公告)号:US20100257152A1

    公开(公告)日:2010-10-07

    申请号:US12418146

    申请日:2009-04-03

    IPC分类号: G06F7/00

    CPC分类号: G06F17/30442 G06F17/30336

    摘要: According to one embodiment of the present invention, a method for identifying relevant database indexes is provided. According to one embodiment of the present invention, a method includes determining the importance of a particular database transaction and storing an index name related to the transaction along with an indicator of the importance. A database transaction is initiated and the importance indicator is received in an index advisor. The index advisor then makes an index recommendation based on the index importance.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于识别相关数据库索引的方法。 根据本发明的一个实施例,一种方法包括确定特定数据库事务的重要性并存储与事务相关的索引名称以及重要性的指标。 启动数据库事务,并在索引顾问中接收重要性指标。 然后,指数顾问根据指标的重要性提出指数推荐。

    Method for searching a data page for inserting a data record
    7.
    发明授权
    Method for searching a data page for inserting a data record 失效
    用于搜索数据页以插入数据记录的方法

    公开(公告)号:US07693875B2

    公开(公告)日:2010-04-06

    申请号:US11620187

    申请日:2007-01-05

    CPC分类号: G06F17/30598 G06F17/30492

    摘要: A method of searching a data page in a table space of a database for inserting a data record to a first table, wherein the table space comprises space map pages and sets of data pages, wherein each space map page comprises information about the available storage space of one set of data pages, wherein each space map page and the corresponding set of data pages is further assigned to a table range for each table to which at least one data page in the set of data pages belongs to, wherein the database further comprises a clustering index for the first table in the database management system, wherein the database management system comprises a space usage information database, and wherein the space usage information database holds space usage information for each table range.

    摘要翻译: 一种在数据库的表空间中搜索用于将数据记录插入到第一表的数据页的方法,其中所述表空间包括空间图页和数据页组,其中每个空间图页包括关于可用存储空间的信息 一组数据页面,其中每个空间地图页面和对应的数据页面集合进一步分配给数据页组中的至少一个数据页面所属的每个表的表范围,其中数据库还包括 数据库管理系统中的第一表的聚类索引,其中所述数据库管理系统包括空间使用信息数据库,并且其中所述空间使用信息数据库保存每个表范围的空间使用信息。

    System and method for incremental indexing
    8.
    发明申请
    System and method for incremental indexing 失效
    增量索引的系统和方法

    公开(公告)号:US20060155752A1

    公开(公告)日:2006-07-13

    申请号:US11271677

    申请日:2005-11-10

    申请人: Namik Hrle James Teng

    发明人: Namik Hrle James Teng

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30336

    摘要: The present system indexes a plurality of entries in a database that contains a database table having a base index. As a recent row is inserted in the database table, an index increment is generated based on the inserted row. Preferably, the index increment is smaller in size than the base index because it is recently generated. The smaller size of the index increment facilitates the management of the index increment. An index entry associated with the inserted row is added to the index increment, and the index increment is merged with the base index.

    摘要翻译: 本系统对包含具有基本索引的数据库表的数据库中的多个条目进行索引。 由于最近一行插入到数据库表中,所以根据插入的行生成索引增量。 优选地,索引增量的大小比基本索引更小,因为它最近被生成。 索引增量的较小尺寸有助于指数增量的管理。 与插入行相关联的索引条目被添加到索引增量中,索引增量与基本索引合并。

    Automatic maintenance of a set of indexes with different currency characteristics in a database management system

    公开(公告)号:US10452629B2

    公开(公告)日:2019-10-22

    申请号:US13082174

    申请日:2011-04-07

    IPC分类号: G06F16/22

    摘要: Methods and apparatus, including computer program products, for maintaining a set of indexes in a database management system (DBMS) having at least one table. A current, stale or deferred status is defined for at least a part of the indexes, resulting in at least a part of a set of current, stale, or deferred indexes in the DBMS. Current indexes are maintained by refreshing a current index synchronously with a table change relating to the current index. Stale indexes are maintained by refreshing a stale index continuously and asynchronously to table modifications of tables relating to the stale index based on log information relating to the modifications. Deferred indexes are maintained by building a deferred index in response to a query to a table relating to the deferred index, thereby bringing the deferred index in accordance with the current query time status to the table relating to the deferred index.

    Database Backup and Restore with Integrated Index Reorganization
    10.
    发明申请
    Database Backup and Restore with Integrated Index Reorganization 有权
    数据库备份和还原与整合索引重组

    公开(公告)号:US20120221523A1

    公开(公告)日:2012-08-30

    申请号:US13465381

    申请日:2012-05-07

    IPC分类号: G06F17/30

    摘要: According to an embodiment of the present invention, a method for reorganizing a source index tree of a database table resulting in a target index tree of the database table is provided. A backup process reads source leaf pages of the source index tree in a logical order defined by a sequence of index keys. The logical order can be different from a physical order of the source leaf pages defined by a sequence of respective storage locations. The backup process constructs target leaf pages of the target index tree maintaining the logical order. A restore process constructs target non-leaf pages of the target index tree based on the distribution of the index keys among the constructed leaf pages and stores the target leaf and non-leaf pages.

    摘要翻译: 根据本发明的实施例,提供了一种用于重组数据库表的源索引树的方法,其导致数据库表的目标索引树。 备份过程按照索引键序列定义的逻辑顺序读取源索引树的源页面页面。 逻辑顺序可以不同于由各个存储位置的序列定义的源叶子页的物理顺序。 备份过程构建维护逻辑顺序的目标索引树的目标叶页面。 恢复过程基于构建的叶子页面中的索引关键字的分布来构建目标索引树的目标非叶子页面,并存储目标叶子和非叶子页面。