What is used to store database data?

Tables are used to store database data. A database table is a collection of a series of two-dimensional arrays used to represent and store relationships between data objects; it consists of vertical columns and horizontal rows; rows can be omitted, but columns cannot.

Tables are used to store database data.

A database table is a collection of two-dimensional arrays used to represent and store relationships between data objects. It consists of vertical columns and horizontal rows. For example, in a table named authors with information about authors, each column contains a specific type of information about all authors, such as "last name", and each row contains All information about a specific author: first name, last name, address, etc.

For a specific database table, the number of columns is generally fixed in advance, and each column can be identified by its column name. The number of rows can change dynamically at any time, and each row can usually be identified based on the data in one (or several) columns, which is called a candidate key.

Recommended tutorial: "MySQL Tutorial"

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