What kind of relationship exists between users and produc...
Figure 4 is an entity relationship diagram in MS Access. Use it to answer the question
What kind of relationship exists between users and products as shown in Figure 4?
One-to-many
Many-to-many
One-to-one
Many-to-one
Correct answer is A
Looking at the arrow (relation) that connects Products table to the Users table. The infinity sign beside the products table represents the "Many" part of the relationship which is not present at the Users table (i.e it is "One" part of the relationship) . This means that a user can buy "any" number of products but a product can only be bought by "a" user. Therefore, the relationship between the "users" and "products" is one-to-many.
NB: Users are assumed to be buying products for illustration purposes.
Many-to-one relationship is if it's between the "Products" and the "Users".
A teacher computed the average score of students in given test ...
The type of data which consist of text, number, audio, graphic and animation is called ...
At what stage of information processing is data validtion carried out? ...
New messages received are save in the part labelled ...
A data element that uniquely identifies one record from the other in a table is the ...
Which of these operations would not improve the performance of a parallel database system? ...
In the model; Furniture (Table, Chair, Wardrobe) Furniture is... ...