Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE employees (salary VARCHAR, manager_id VARCHAR)

### Question ###
Find the salary and manager number for those employees who is working under a manager.

### Accurate SQL ###

SELECT salary, manager_id FROM employees WHERE manager_id <> "null"