Hybrid Database Concurrent Transaction Control
    101.
    发明申请

    公开(公告)号:US20180074919A1

    公开(公告)日:2018-03-15

    申请号:US15260943

    申请日:2016-09-09

    Applicant: SAP SE

    Abstract: A plurality of database modification statements are received as part of a database transaction that implicates data stored within a database. Thereafter, lock requests are initiated that requesting the database to lock the implicated data. At least one database operation by at least one of the database modification statements is then executed prior to receiving responses from at least a portion of the lock requests. After confirming that prior lock requests made by the transaction are successfully processed, a commit to make changes to the corresponding implicated data permanent is initiated. The implicated data can then be caused to be unlocked after the commit completes. Related apparatus, systems, techniques and articles are also described.

    Unified data layer backup system
    102.
    发明授权

    公开(公告)号:US09910745B1

    公开(公告)日:2018-03-06

    申请号:US15658613

    申请日:2017-07-25

    CPC classification number: G06F11/1469 G06F11/1451 G06F2201/80 G06F2201/84

    Abstract: A primary system is established at a first site. The primary system hosts an application and a primary database for remote users that use the application to manage data of the primary database. A unified data layer is established at a remote site. The unified data layer provides access to data of the primary database without providing access to the primary database. A triggering event that impairs the ability of the primary system to host the application is detected. A recovery system is instantiated in response to detecting the triggering event. The recovery system includes both a recovery instance of the application and a recovery database for the data of the application. The recovery database is populated using the unified data layer. The recovery system is activated such that remote users can access the recovery instance of the application to manage data of the recovery database.

    Backing up a computer application
    104.
    发明授权

    公开(公告)号:US09898372B2

    公开(公告)日:2018-02-20

    申请号:US14029911

    申请日:2013-09-18

    Abstract: A method and associated systems for backing up a target computer application that comprises identifying and backing up databases and other information repositories upon which the target application depends. The target application is identified and related to a backup requirement that specifies a minimum application-backup frequency. The application's “dependencies” are automatically identified from sources that include configuration files, where each dependency identifies one or more databases or other information repositories that store information upon which the application directly or indirectly depends. If any of these databases or repositories is associated with a backup frequency less than the application's minimum backup frequency, the database or repository is flagged. Each flagged entity's backup schedule is then revised so that the flagged entity's backup frequency is equal to or greater than the application's minimum backup frequency.

    Data replicating system, data replicating method, node device, management device and computer readable medium

    公开(公告)号:US09836361B2

    公开(公告)日:2017-12-05

    申请号:US14776314

    申请日:2013-12-16

    Inventor: Ichiro Arai

    Abstract: Each node constituting this data replicating system returns a response to a data operation requesting device upon having written, into a temporary storage device of the node itself, a post-update log of a data record for which an operation requested by a data operation request was executed. Furthermore, when a checkpoint is reached, each node updates a data record storage unit of the node itself on the basis of the post-update log of the data record stored in the temporary storage device of the node itself, writes the post-update log of the data record stored in the temporary storage device of the node itself into an update history storage unit of the node itself, and writes, into a shared storage device shared with other nodes, checkpoint information having information for specifying a latest post-update log written into the update history storage unit.

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