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Explain heap file with advantages?
Heap File is an unordered set or a group of records, stored on a set of pages. This class gives basic support for inserting, updating, selecting, and deleting records. Temporary heap files are used for external sorting and within other relational operators. A sequential scan of a heap file (through the Scan class) is the most primary access method.
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Describe domain constraints. Domain constraints contain entity integrity and referential integrity. The domain is a set of values that might be assigned to an attribute. The en
Define Database layer? The database layer defines the data formats used in the database.
what is entity in database system?
a method named WonGame that checks each letter in the word is matched by its label
In a job interview with a branch manager of a bank that operates in multiple Canadian provinces and the Yukon, you learn that all of the information is captured in real time in a s
management information system based on functional organisation
Adding Redundant Associations for Efficient Access Redundant associations do not add any type of information, therefore during design we should actually examine structure of o
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
why are older data models are being replaced by new data models
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