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Define an abstraction by which relationships are treated as higher level entities
Ans: Aggregation.
It is an abstraction by which relationships are treated as higher level entities Aggregation. (In ER diagram, aggregation is utilized to denote a relationship as an entity set.)
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Describe the objective of Structural Diagrams The main objective of structural diagram is to visualize, construct, specify and document static aspects of a system. Their eleme
What does Aggregation mean?
What are stored-procedures? And what are the advantages of using them? Stored procedures are database objects that perform a user defined operation. A stored procedure can have
Explain query execution plan? - Optimizer available in SQL Server optimizes code to be effectively executed. - A query execution plan demonstrates how this optimizer would r
Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file
Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department. SELECT DEPTNO, MIN (SAL)
milestone assignment
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