Answer:
A primary key is a special relational database table column (or combination of columns) designated to uniquely identify each table record. A primary key is used as a unique identifier to quickly parse data within the table. A table cannot have more than one primary key.
Primary Key.
Candidate Key.
Alternate Key.
Super Key.
Composite Key.
Foreign Key.
Unique Key.
In the relational model of databases, a primary key is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation. Informally, a primary key is "which attributes identify a record," and in simple cases constitute a single attribute: a unique ID.
Explanation:
Answer:
NOPE
Explanation:
sometimes presentations can be for one person only. For instance if you work in a company sometimes you present for your boss only etc.
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<span>Ensure that at </span>least one<span> writable </span>DC<span> must be running </span>Windows Server 2008<span> or higher before you can deploy a Read-Only-Domain-Controller.</span>
Answer:
Linked Lives
Explanation:
Linked-lives is a popular preposition, the idea is that people who are related to each like father-child or mother-child relationship have similar influencing trajetories of development that cuts across their lives.
Answer:
Speakers.
Explanation: Cause they only output sound, and are devices, further more they are not used to output images, like how could speakers output images using sound? They can't.
