Ensure all attributes are functionally dependent on non-key attributes.

Remove partial dependencies to achieve 2NF.

Eliminate repeating groups to achieve 1NF.

Eliminate transitive dependencies.

Add an intersection table for M:N relationships with two foreign keys.

Add composite attributes directly as columns in the table.

Create a table for each entity and introduce foreign keys for relationships.

For 1:1 relationships, a unique foreign key can be placed in either table.

To minimize redundancy and avoid anomalies

To merge all tables into one large table

To increase data redundancy

To create more complex data structures

High efficiency in large transaction processing

Easy to understand and use

Flexible structure for decision support systems

Powerful data manipulation capabilities

A unique foreign key in both related tables

A foreign key in the "many" side only

An associative attribute in the "one" side

An intersection table with two foreign keys

many-to-many relationship

one-to-many relationship

one-to-one relationship

All options are correct

Primary keys must be unique for every row in the table.

Composite primary keys can consist of multiple columns.

Every relation must have a primary key.

Primary keys can contain null values.