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Determine object representation
As a designer, we must choose properly that when to use primitive types in representing objects and when to combine groups of related objects, what is exact representation of object attributes.
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
Creation of Indexes Automatically: When a primary key or Unique constraint is show in a table definition then a unique index is formed automatically. Manually: User can
what benefit can a company gain by managing its own infrasture and services
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
What are the causes of bucket overflow in a hash file organization? What can be done to reduce the occurrence of bucket overflow? When a record is inserted, the bucket to that
ER diagram on cosmetics
complete assignment on the above title.
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
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