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What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
create an e-r diagram usuing graphical dipicted software that could theoritically be used in resturant application
Briefly describe concurrency execution? Lock - based protocols Locks There are several modes in which a data item may be locked in this section we restrict our attention
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
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What is Candidate Key Super Key or Candidate Key: It is such an attribute of a table that can uniquely recognize a row in a table. Generally they have unique values and can n
The Form input elements are: Reporter name text type input Password
What are the problems if one were not to normalize? When do these problems surface? Ans: Database normalization, sometimes considered to as canonical synthesis, is
Types of Locks There are two necessary types of locks: Binary lock : This locking mechanism has two states for to a data item: locked or unlocked Multiple-mode loc
What is abstraction? Abstraction in the object orientation is a idea that provide opportunity to express necessary properties of object without providing much details of the im
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