Advertisements
Advertisements
Question
What is a relationship in databases? List its types.
Solution
There exists a relationship between two tables when the foreign key of one table references the primary key of other tables.
The Entity-Relationship(ER) diagram is based on the three types listed below.
- One-to-One relationship
- One-to-Many relationship
- Many-to-Many relationship
APPEARS IN
RELATED QUESTIONS
State the significance of the following in DBMS :
(i) Forms
(ii) Reports
What is the difference between .importing and exporting of a database?
__________ is a collection of related data.
What symbol is used for the SELECT statement?
Which language is used to request information from a Database?
How is a top to bottom relationship among the items in a database established?
Users can work on DBMS using ______.
State any two requirements that should be considered before making an investing decision to choose between 'Server database' or 'Desktop database'.
Why is database testing important?
What is meant by date-transfer rate?
