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NEED FOR A DATABASE MANAGEMENT SYSTEM
A Database is a structured, persistent collection of data of an organisation. The database management system (DBMS) manages the database of an enterprise. But why do we need the database management system? To explain it, let us first discuss the alternative to it that is the file-based system.
(a) Why did SAP introduce the extended star schema?
explain in details about one to one binary relationship
Use a Set operator to create a list of academics who have written or co-written less than 5 papers and also have greater than 3 interests. List their academic number in the output.
Problem : AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
Primary index A primary index is a file that has a sorted series of records having two columns: a block address for that key field in the data file; and the ordering key field.
Explanation on Data Sharing?
The Form input elements are: Reporter name text type input Password
Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
Describe the two alternatives for specifying structural constraints on relationship kinds? Relationship kinds have certain constraints in which limit the possible combination o
Hot Backup: Some sites cannot terminate the database while creating a backup copy of the files. The cold backup is not a reliable option. So different kinds of backing up database
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