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Describe the static hash file with buckets and chaining and show how insertion, deletion and modification of a record can be performed. In static hash file organization, the wo
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
Define the Immediate Update The immediate update methods may apply changes to the database on disk before the transaction arrives a successful conclusion. Though, these change
what is the relationship between receipt and owner entities in computer sales and service company
Views A view is like a window by which data from tables can be changed or viewed. The table on which a view is based is known as Base table. The view is stored as a SELECT stat
Which operation is used if we are interested in only certain columns of a table? PROJECTION operation is used if we are interested in only certain columns of a table.
Objectives Define the terms RECOVERY and INTEGRITY; Define Recovery Techniques; Explain Error and Error detection techniques, and Define types of Authorisation.
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
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
Exclusive lock It is asked for by a transaction on a data item that it wants to update. No other transaction can put either a shared lock or an exclusive lock on a dat
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