问题
My previous post here (mysqli_query() returns "Table doesn't exist" for known table - Permissions issue?) explains the details of how I arrived at this issue.
I am now convinced that the username and password which I set while creating my DB instance have not been given the appropriate permissions to allow me to edit the contents of the my own database.
This is extremely frustrating, so if anyone has any tips or tricks on how to modify these permissions I would really appreciate it.
To clarify, currently all permissions are set via the EC2 Security Groups, and as a result I cannot actually even see the username and password I created when I made the database, so it doesn't appear that I can set the permissions any differently, or edit the policies.
Thanks a bunch.
Alex
回答1:
So I went back to your previous question to see what you were doing. The database named mysql is a system database. Not a very good place to create tables. In fact the permissions for this database are likely restricted as it can break mysql and/or the RDS automation.
You need to create a new database for your tables. While you do not get super user access within RDS, you do get full access to any databases that you set up. System databases are going to be restricted.
Security groups manage connectivity to RDS. Its the same thing as an external firewall.
Grants manage permissions within MySQL. The MySQL manual will explain how you can use these.
来源：https://stackoverflow.com/questions/35260390/how-to-edit-user-permissions-for-aws-rds