ROLES questions

To manage user roles and permissions in PostgreSQL, use the `CREATE ROLE` and `GRANT` statements. Create a role with `CREATE ROLE role_name;`, and grant permissions with `GRANT privilege_type ON object TO role_name;`. For example, to grant SELECT permission on the 'employees' table to a role 'data_reader', use `GRANT SELECT ON employees TO data_reader;`.

I have experience with succession planning by identifying and developing high-potential employees to fill key roles in the future. This involves assessing current talent, creating development plans, and providing mentorship and training opportunities. I also work with senior leaders to ensure that there is a clear plan in place for critical positions, which helps to ensure business continuity and readiness for leadership transitions.

User roles and permissions in MongoDB are managed using role-based access control (RBAC). You can define custom roles with specific privileges. For example, `db.createRole({role: 'readWrite', privileges: [{resource: {db: 'myDB', collection: ''}, actions: ['find', 'insert', 'update']}]})` creates a role that allows reading and writing.