5 Which of the following statements are true There are multi

5

Which of the following statements are true? (There are multiple correct answers)

An instance of an entity is one specific thing of the type defined by the entity.

In a database, there can only be one-to-many relationships between entities in the database.

You should use the UPDATE command to change a tuple in a database table.

Object-oriented databases are significantly less costlier than relational databases.

Null values are never allowed in a database.

6

Which of the following statements are true? (There are multiple correct answers)

A model is a simplified representation of a complex entity.

Big Data and business intelligence are often referred to as the same thing.

Business intelligence systems are often installed as an additional module of an ERP system.

An attribute corresponds to a row in a relational database.

A tuple corresponds to a column in a relational database.

Solution

5.

Statements :

An instance of an entity is one specific thing of the type defined by the entity. -> True

In a database, there can only be one-to-many relationships between entities in the database. ->False.

You should use the UPDATE command to change a tuple in a database table.   -> True

Object-oriented databases are significantly less costlier than relational databases.   -> True

Object-oriented databases are significantly less costlier than relational databases.   -> True

Null values are never allowed in a database.   -> True

6.

Statements :

A model is a simplified representation of a complex entity.       -> True.

Big Data and business intelligence are often referred to as the same thing.   ->False.

Business intelligence systems are often installed as an additional module of an ERP system.   -> True.

An attribute corresponds to a row in a relational database.   -> True.

A tuple corresponds to a column in a relational database.   ->False.