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Let us first describe the term relationships.
What Are Relationships?
A relationship can be defined as:
Example: In college the database, the association among student and course entity, i.e., "Student opts course" is an instance of a relationship.
Consider an information system designed for an online company which provides IT products and services. These include desktops, laptops, networking products, IT books, parts, and te
Attributes and its types explain?
Which product produces the relation that has attributes of R1 and R2 ? Cartesian product produce the relation which has attributes of R1 and R2
Physical Database Design Issues The database design includes the process of logical design with the use of E-R diagram, normalisation, etc., followed by the physical design.
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
You are required to implement integrity constraints within the database to enforce the following requirements: For Projects: Start date must be supplied. Start date cannot be i
I have to solve a problem using access
While sorting, if the main storage available is not enough, the system writes data to an external help file. The SAP profile parameter, which determines DIR_SORTTMP
Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further
i am not clear with the climetic condition of the north indian plain. can u plz explain it for me
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