create a user in sql server 2019 and connect code example

Example 1: create login sql server

CREATE LOGIN <login_name> WITH PASSWORD = '<enterStrongPasswordHere>';
GO

Example 2: create user sql

-- Creates the login AbolrousHazem with password '340$Uuxwp7Mcxo7Khy'.  
CREATE LOGIN username   
    WITH PASSWORD = 'password';  
GO  

-- Creates a database user for the login created above.  
CREATE USER AbolrousHazem FOR LOGIN AbolrousHazem;  
GO