What does "primary key" mean?

In the design of a database table, the primary key (abbreviated PK) is selected among the non-empty set of candidate keys. The PK is a column (or an irreducible group of columns) able to identify every row of the table.

What is a synonym for "primary key"?

Common synonyms include: identification key, index values, inventory-item number.

Primary key

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
In the design of a database table, the primary key (abbreviated PK) is selected among the non-empty set of candidate keys. The PK is a column (or an irreducible group of columns) able to identify every row of the table.

Synonyms

All synonyms

identification key index values inventory-item number

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