DMBS.ig
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In practice, the costs for sort-merge join, as well as for external sorting, are logarithmic
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The precedence graph is using a directed graph
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Deadlock detection involves breaking deadlocks by allowing both involved transactions to proceed simultaneously.
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In the context of the CRUD acronym, the letter "C" stands for "create".
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A distributed database can consist of multiple types of DBMS operating across different nodes
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When a write lock (exclusive lock) is found on an object A for a transaction, the transaction can execute Read(A) (but not Write(A)).
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Operations in an equivalent execution plan are not fixed and change depending on the context
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The user who created a table or view automatically receives all access rights to it
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Vertical fragmentation involves combining attributes with different access patterns, leading to inefficient data distribution in a VDBMS
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Read committed isolation level ensures that a transaction sees only changes committed before the transaction began.
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