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A self-referencing relationship can have cardinality constraints.

Given the ERD below, what is the relationship between X and Y? [ X ] ||           o< [ Y ]

Every relationship in an ERD must have a cardinality.

What is the primary goal of normalization?

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 systems, and they are considered relational database management systems (RDBMS).

What problem arises if a database does NOT enforce foreign key constraints?

For visualization of the pleurae, lower and middle mediastinum, and pericardium, the surgeon would need a:

Comparably speaking, which of the following would have the highest observability in terms of its rate of acceptance and diffusion?

The diagnostic procedure which permits visualization of the Great Vessels is called: