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Primary key
Meaning
Noun
●
In Computing & Databases:
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
.
Sourced from
Wiktionary
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