题目内容
Microsoft Access uses ________ to conduct queries.
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The ________ provide(s) information on each attribute and why the attribute is needed in the database, who uses it, and how it should be updated.
A vertical line with a “chicken leg” to the entity represents the ________ cardinality symbol.
A circle with a “chicken leg” to the entity represents the ________ cardinality symbol.
Considering the following tables, ________ is a primary key.
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