Question

state true of false a table can have only one primary key​

Answer 1

Answer:

True

Explanation:

A primary key is a field in a table which uniquely identifies each row/record in a database table. Primary keys must contain unique values. A primary key column cannot have NULL values. A table can have only one primary key, which may consist of single or multiple fields.

Answer 2

A table can have only one primary key is a true statement

Primary key

• A primary key is the column or columns that hold values that uniquely recognize each row in a database table. A database table must have a primary key for Optima to insert, update, restore, or delete data from a database table.
• A database table can have only one primary key, which can have single or multiple columns. When multiple columns are used as a primary key, they are called composite keys.