Answer:
- They write step by step instructions for a computer to follow.
- They create a logic problem that the computer program can solve.
I think marketing and branding. i dont think this is 100% correct
Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
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I'd say Davis was trying to increase persuasive power. Given that he saw that nobody was really his friend because he was shy and quiet, he tried to persuade people to like him by going to the game and hanging out with people.