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Determine the Other System Design Issue How to realise subsystems; through hardware or software? How is object model mapped on chosen hardware software? Mapping
Modular growth: In distributed environments, it is simple to expand. Latest sites can be added to the network without affecting the operations of other sites, as they are somewhat
Explain entity integrity and referential integrity rules within relational model. Show how these are realized in SQL? Entity Integrity Rule - No primary key value could be nu
A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time. A relation state r of the relation schema R (A 1 ,A 2 ,.....
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
explain the steps for reduction of er model into relational model?
Define Database layer? The database layer defines the data formats used in the database.
Explain DML with some examples? DML - Data Manipulation Language: statements used for managing data within schema objects. Some examples: • SELECT - retrieve data from the a da
A database administrator''s responsibilities and data contents
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