Primary Key Indicator

This field indicates whether the table has a primary key defined. The value will be TRUE if a primary key exists, or FALSE if no primary key is defined.

A primary key is a column or combination of columns that uniquely identifies each row in the table. Primary keys are essential for ensuring data integrity and establishing relationships between tables. They also improve query performance by creating indexes automatically.

If the table has a primary key, you can view its details in the Constraints tab.