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What is Foreign Key
Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primary attribute of a related table. Such a copy of another related table's primary key is known as foreign key.
How to create a biological database based on viruses. How to decide which attribute should be there in the table and schema? How to identify the primary keys, foreign keys, domain,
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
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Attributes attached to an entity can be of various types. Simple The attribute that cannot be further separated into smaller parts and shows the basic meaning is known as a
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
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Need a sample of a clinic database relationships
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