A standardized programming language that is used to manage relational databases

an organized collection of structured information or data,

defines how data is organized within a relational database

are software systems used to store, retrieve, and run queries on data

What does R in CRUD mean?

What does D in CRUD mean?

Examples of databases:

Types of Database

Examples of relational database

Examples of NoSQL

a request to access data from a database to manipulate or retrieve it

are database objects that contain all the data in a database

is a list of values, usually belonging to a particular field, displayed vertically in a table

is a collection of fields that make up a record

Describe a primary key

Primary key is required in a database table

Describe a foreign key

a combination of two or more columns in a table that can be used to uniquely identify each row in the table

a column or combination of columns that contain values that uniquely identify each row in the table