Question 1

What is Types of Keys in Databases Explained about?

Accepted Answer

Keys play an important role in relational databases by uniquely identifying records. There are several types of keys:

1. A primary key uniquely identifies each record in a table, such as an employee ID.

2. A candidate key can also uniquely identify records, like a social security number, but only one can be the primary key.

3. A super key contains attributes that uniquely identify records plus other attributes, making it a superset of candidate keys.

4. A foreign key in one table matches the primary

Question 2

Can I read Types of Keys in Databases Explained on EtoBox?

Accepted Answer

Types of Keys in Databases Explained by hack is a document available to read on EtoBox.

Types of Keys in Databases Explained

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