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What is known as clustering file organization?
In the clustering file organization, records of several dissimilar relations are stored in the similar file.
A file manipulation command that extracts some of the records from a file is called ? A file manipulation command that extracts some of the records from a file is called SELECT
PART MARKING: For this section, we will use part marking. This means we will supply model answers to all questions but we will only mark six questions. We will choose these randoml
Lack of Redundancy We have talked about the problems of repetition of information in a database. Such repetition should be stay away as much as possible. Let us state once again t
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Objectives After reading this part, you should be able to: Modify, create, and delete database schema objects; Update database using SQL command; Retrieve data f
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
Explain P command in the respect of QBE? P: It is the command in which is used to print (logically display) the value of the attribute in whose cell it is writ
Explain how the object classes are mapped to tables. Each object class maps to one or more than one tables in the database. The objects in the class may be partitioned horizont
waht is a repeating group?
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