- What is null attribute?
- Which is a key attribute?
- What is the use of type attribute?
- What does attribute mean in a person?
- What kind of attribute is age?
- What is simple attribute?
- What is attribute give example?
- What are examples of professional attributes?
- What is multivalued attribute give example?
- What does best attribute mean?
- Is age a derived attribute?
- What are types attributes?
What is null attribute?
In general, a null attribute value is the equivalent of nothing.
However, it’s important to be precise in our terminology because there are many ways to represent nothing: An attribute has a value that indicates nothingness (null) An attribute exists but has no value (empty) An attribute doesn’t exist (missing).
Which is a key attribute?
A key attribute is the unique characteristic of the entity. … Name and hire date are attributes of the entity Employee.
What is the use of type attribute?
The type attribute is most often used on linking elements to describe the target of a cross-reference. It is also used on the note element to describe the type of the current note, and on several other elements for varying purposes.
What does attribute mean in a person?
1 : a quality, character, or characteristic ascribed to someone or something has leadership attributes. 2 : an object closely associated with or belonging to a specific person, thing, or office a scepter is the attribute of power especially : such an object used for identification in painting or sculpture.
What kind of attribute is age?
In this example age is atomic attribute. An attribute that can be divided into smaller independent attribute is known as composite attribute. For example, assume Student is an entity and its attributes are Name, Age, Address and Phone no.
What is simple attribute?
Simple attribute − Simple attributes are atomic values, which cannot be divided further. For example, a student’s phone number is an atomic value of 10 digits. Composite attribute − Composite attributes are made of more than one simple attribute. For example, a student’s complete name may have first_name and last_name.
What is attribute give example?
An attribute is defined as a quality or characteristic of a person, place, or thing. Real life individuals and fictional characters possess various attributes. For example, someone might be labeled beautiful, charming, funny, or intelligent.
What are examples of professional attributes?
Top 10 Qualities and Skills Employers are Looking ForCommunication Skills. … Honesty. … Technical Competency. … Work Ethic. … Flexibility. … Determination and Persistence. … Ability to Work in Harmony with Co-Workers. … Eager and Willing to Add to Their Knowledge Base and Skills.More items…•
What is multivalued attribute give example?
A multivalued attribute of an entity is an attribute that can have more than one value associated with the key of the entity. For example, a large company could have many divisions, some of them possibly in different cities.
What does best attribute mean?
An attribute is a quality or characteristic given to a person, group, or some other thing. Your best attribute might be your willingness to help others, like when you stopped traffic so the duck family could cross the street.
Is age a derived attribute?
Derived Attribute This is done mainly because the value for such attribute keeps on changing. It is represented by a dashed oval. For example, The value of age attribute is derived from the DOB(date of birth) attribute.
What are types attributes?
An attribute is a property or characteristic of an entity. … Attributes can also be subdivided into another set of attributes. There are five such types of attributes: Simple, Composite, Single-valued, Multi-valued, and Derived attribute.