DMBS.ig
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A database 'rollback' operation will not save all recent changes permanently to the database
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SQL Server supports the use of foreign keys to establish relationships between tables in a relational database.
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A composite key is made up of more than one attribute to uniquely identify rows in a table
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Recovery managers in distributed systems ensure the ACID properties, with atomicity guaranteed by rolling back operations of non-committed transactions and durability ensured by committed transactions surviving system crashes or errors
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Catastrophic errors, like the destruction of a data center, can always be resolved by restoring the most recent consistent state from archive copies and log archives
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Integrity means that only authorized users are allowed to modify the data.
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Durability is an important element in database recovery.
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The GRANT command is used to grant users permissions to access or perform certain actions on objects in the database.
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Network partitioning in distributed databases can lead to splitting operational computers into disjoint partitions
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The collaborative server architecture in distributed databases allows a query to span multiple compute nodes
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