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If a primary key is composed of multiple attributes: Group of answer choices all attributes must be non - numeric. it is called a surrogate
If a primary key is composed of multiple attributes:
Group of answer choices
all attributes must be nonnumeric.
it is called a surrogate key.
it must not be copied to any other table.
it is called a composite key.
it cannot be updated.
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Data And Databases
Authors: Jeff Mapua
1st Edition
1978502257, 978-1978502253
