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Explain the Management of Data Store
Every system irrespective of its nature of application requires storing permanent data for consequent use in problem solving. Some objects in models need to be constant to store the state of object permanently in database. Most systems need constant data which is not lost when system closes down. These data are stored in file system in database. Object-oriented applications sometimes use relational databases to provide persistence.
What is known as sequential file organization? In the sequential file organization, the records are kept in sequential order, according to the value of a "search key" of every
System error :These contain errors in database system or the OS, example, deadlocks.Such errors are fairly hard to detect and need reprogramming the erroneous components of the sys
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Define the Attribute Inheritance The attributes of a higher level entity set are inherited through a lower level entity set made by specialization-generalization hierarchy. Nam
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Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
definition and its work
what is entity in database system?
what is the need of a log in dbms
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
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