Distributed Database Management System, Database Management System

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Types of Data fragmentation

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Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.

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A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a

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Domain Constraint It shows that each attribute in a relation has to contain an atomic value only from the corresponding domains. The data types associated with commercial RDBMS

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What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files

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Define identify relationship? Identifying relationship: An identifying relationship means in which the child table cannot be uniquely recognize without the parent. For exampl

Intersection, If R1 and R2 are two union compatible relations or functions,...

If R1 and R2 are two union compatible relations or functions, then the result of R3 = R1 ∩R2 is the relation that contains all tuples that are in both the relations In other words,

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The ER diagram clearly showing the additional tables you have implemented. SQL table creation scripts for the tables you have set up. SQL scripts showing the sample data you

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