Which command is used to view all databases?

How do I view all SQL databases?

To view a list of databases on an instance of SQL Server1In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.2To see a list of all databases on the instance, expand Databases.View list of databases on SQL Server - Microsoft Docs

Which command is used to database?

SQL commands are instructions. It is used to communicate with the database. It is also used to perform specific tasks, functions, and queries of data. SQL can perform various tasks like create a table, add data to tables, drop the table, modify the table, set permission for users.