Explanation
Before creating a new database collector, you need to perform the following actions:
Verify the database connection details. You need to provide the host, port, database name, and credentials for the database that you want to monitor. You also need to select the database type and the collector type1 Create a database user and set user permissions. You need to create a database user with the minimum required permissions to access the database and run the queries that the Database Agent needs. You can use the scripts provided by AppDynamics to create the user and grant the permissions2 References: 1: Add Database Collectors 2: Database Permissions