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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.
Data synchronization is needed to update and keep multiple copies of a set of data coherent with one another or to maintain data integrity, Figure 3. [1] For example, database replication is used to keep multiple copies of data synchronized with database servers that store data in different locations.
All data can therefore be accessed and read without a Database Management System (DBMS), or CHRONOS itself, as it is in plain text format. This eliminates the need for maintaining a DBMS solely for reading preserved static databases as well as the need to, potentially riskily, migrate database files to newer database formats. [ 9 ]
The corresponding restore utility can selectively restore individual files or the entire volume at the operator's choice. [48] Identification of changes: Some filesystems have an archive bit for each file that says it was recently changed. Some backup software looks at the date of the file and compares it with the last backup to determine ...
PostgreSQL claims high, but not complete, conformance with the latest SQL standard ("as of the version 17 release in September 2024, PostgreSQL conforms to at least 170 of the 177 mandatory features for SQL:2023 Core conformance", and no other databases fully conformed to it [79]). One exception is the handling of unquoted identifiers like ...
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Operational database management systems (also referred to as OLTP databases or online transaction processing databases), are used to update data in real-time. These types of databases allow users to do more than simply view archived data. Operational databases allow you to modify that data (add, change or delete data), doing it in real-time. [1]
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