I will use 100's of SQL databases in a single program. Now I have 100 databases in SQL (like A1, A2, A3..., A100) and I want to log in and enter these SQL databases. When I enter the Username and Password, SQL information appears in the Users table in SQL. There is a column like this: Username of database A1 = "Ronaldo", Password = "7", Database = "Fill in what you need". a2 database's username = "Messi", Password = "10", Database = "Fill in whatever you need" But I don't want to add them to my project one by one, I just want the database to automatically find and display it. When the user logs in, the data comes from whoever logged in. .