Which of the following helps maintain data integrity in a database?
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Which of the following is true about a primary key?
Which of the following is true about a primary key?
Referential integrity is maintained using primary keys.
Referential integrity is maintained using primary keys.
When representing a one-to-one relationship from an ERD diag…
When representing a one-to-one relationship from an ERD diagram in a schema diagram, the addition of a bridge table is required.
A self-referencing relationship can have cardinality constra…
A self-referencing relationship can have cardinality constraints.
Given the ERD below, what is the relationship between X and…
Given the ERD below, what is the relationship between X and Y? [ X ] || o< [ Y ]
Every relationship in an ERD must have a cardinality.
Every relationship in an ERD must have a cardinality.
What is the primary goal of normalization?
What is the primary goal of normalization?
A composite key consists of two or more attributes that uniq…
A composite key consists of two or more attributes that uniquely identify a record.
The file system and xml files are examples of data storage s…
The file system and xml files are examples of data storage systems, and they are considered relational database management systems (RDBMS).