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In the Oracle RDBMS environment, redo logs comprise files in a proprietary format which log a history of all changes made to the database. Each redo log file consists of redo records. A redo record, also called a redo entry, holds a group of change vectors, each of which describes or represents a change made to a single block in the database.
A database is both a physical and logical grouping of data. An ESE database looks like a single file to Windows. Internally the database is a collection of 2, 4, 8, 16, or 32 KB pages (16 and 32 KB page options are only available in Windows 7 and Exchange 2010), [1] arranged in a balanced B-tree structure. [2]
Catalog-assisted granular recovery of objects, files, folders, applications, or VMs (including Exchange, SharePoint, SQL Server, and Active Directory) directly from storage, with no mounting or staging. Restore to different targets or hardware (Dissimilar Hardware Recovery) Restore to physical or virtual servers [20] Simplified Disaster ...
Ordered storage typically stores the records in order and may have to rearrange or increase the file size when a new record is inserted, resulting in lower insertion efficiency. However, ordered storage provides more efficient retrieval as the records are pre-sorted, resulting in a complexity of O ( log n ) {\displaystyle O\left(\log n ...
Windows SharePoint Services 3.0 and Windows Server Update Services 3.0 both include Windows Internal Database, which can be used as an alternative to using a retail edition of SQL Server. WID was a 32-bit application, even as a component of Windows Server 2008 64-bit, which installs in the path C:\Windows\sysmsi\ssee\ In Windows Server 2012 and ...
Interrelated database files backup: Some interrelated database file systems offer a means to generate a "hot backup" [55] of the database while it is online and usable. This may include a snapshot of the data files plus a snapshotted log of changes made while the backup is running.
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A database dump contains a record of the table structure and/or the data from a database and is usually in the form of a list of SQL statements ("SQL dump"). A database dump is most often used for backing up a database so that its contents can be restored in the event of data loss. Corrupted databases can often be recovered by analysis of the dump.