The SELECT command in MySQL is one of the most commonly used SQL statements. It is used to retrieve data from one or more tables in a database. The SELECT statement is versatile and can be customized to fetch specific data based on various conditions. Here’s a detailed explanation:

1. Basic Syntax

SELECT column1, column2, ... 
FROM table_name;

• SELECT: The keyword to start the query.
• column1, column2, ...: The columns you want to retrieve. You can specify one or more columns.
• FROM: Specifies the table from which to retrieve the data.
• table_name: The name of the table where the data is stored.

2. Selecting All Columns

To select all columns from a table, use the * wildcard:

SELECT * 
FROM table_name;

This command retrieves all columns for all rows in the specified table.