The following parameters are available :
- Table
- The table these permissions should apply to. 
 
- Username
- The user to whom the permissions are granted. This user must already
    exist in the User Permissions table. 
 
- Hosts
- The hosts that the user can access the table from. 
 
- Table permissions
- The permissions granted to the user on all columns of the table. 
 
- Field permissions
- The maximum permissions that can be granted to this user for any
    column of the table in the Field Permissions page.