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Define the Immediate Update
The immediate update methods may apply changes to the database on disk before the transaction arrives a successful conclusion. Though, these changes are usually recorded in the log on disk by force writing previous to they are applied to the database, making recovery still possible.
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Control Files : The redo and control files logs support the rest of the architecture. Every database must have at least one control file, although you have more than one to guard
Define the basic operations of the relational algebra? Ans: Basic operators of relational algebra are: 1. Union (∪) - Selects tuples which are in either P or Q or in bot
Question: One of the tasks a database management system must perform is to ensure that the data is still intact in the face of software and hardware failure. This task is known
how to operate database in access ?
By using the delete operation some consisting records can be deleted from a relation. To delete some definite records from the database a condition is also specified based on which
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