1. You should always start a new thread for your questions.
2. You can not connect to a Firebase Database (say it RealtimeDatabase or Firebase Firestore') using an JDBC Driver. The Databases are different.
Not quite understand what changes should be made if I want to connect to a MSSQL
Public mysql As JdbcSQL
Private driver As String = "com.mysql.jdbc.Driver" <- what to change??
Private jdbcUrl As String = "jdbc:mssql://192.168.0.6/test"
Private Username As String = "username"
Private Password As String = "password"