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طيب بالنسبه لهذه الفقرتين


153. A field identified in a record as holding the unique identifier for that record is called the:

a. primary key.

b. key field.

c. primary field.

d. foreign key.


178. A field identified in a table as holding the unique identifier of the table’s records is called the:

a. primary key.

b. key field.

c. primary field.

d. foreign key.