What is the Difference Between Stored and Derived Attribute in DBMS

A stored attribute is an attribute that cannot be derived from other attributes while a derived attribute is an attribute that can be obtained using another stored attribute. Thus, this is the main difference between stored and derived attribute in DBMS.

1. What are the stored and derived attributes?
2. What is the derived attribute?
3. What do you mean by derive attribute give an example?
4. What is derived database?
5. What are the types of attributes?
6. What are attributes give example?
7. What is an attribute?
8. Which is a key attribute?
9. Is age a derived attribute?
10. What is multivalued attribute give example?
11. What is an example of an entity?
12. What is ERP diagram?

What are the stored and derived attributes?

Stored attribute −Stored attributes are the attributes that exist in the physical database . For example , date_of_birth. Derived attribute − Derived attributes are the attributes that do not exist in the physical database, but their values are derived from other attributes present in the database.

What is the derived attribute?

Derived attribute − Derived attributes are the attributes that do not exist in the physical database, but their values are derived from other attributes present in the database. ... Multi-value attribute − Multi-value attributes may contain more than one values.

What do you mean by derive attribute give an example?

A derived attribute is one whose value is dynamic and derived from another attribute. ... For example – Person age is a derived attribute as it changes over time and can be derived from another attribute (Date of birth).

What is derived database?

A derived data element is a data element derived from other data elements using a mathematical, logical, or other type of transformation, e.g. arithmetic formula, composition, aggregation. This same definition is used in the data.gov.uk glossary, which has some comments.

What are the types of attributes?

Types of Attributes-

• Simple attributes.
• Composite attributes.
• Single valued attributes.
• Multi valued attributes.
• Derived attributes.
• Key attributes.

What are attributes 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 is an attribute?

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.

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. ...

Is age a derived attribute?

For example, The value of age attribute is derived from the DOB(date of birth) attribute.

What is multivalued attribute give example?

Multivalued Attributes

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 is an example of an entity?

Examples of an entity are a single person, single product, or single organization. Entity type. A person, organization, object type, or concept about which information is stored. ... A characteristic or trait of an entity type that describes the entity, for example, the Person entity type has the Date of Birth attribute.

What is ERP diagram?

ER Diagram stands for Entity Relationship Diagram, also known as ERD is a diagram that displays the relationship of entity sets stored in a database. ... ER Diagrams contain different symbols that use rectangles to represent entities, ovals to define attributes and diamond shapes to represent relationships.