human
Schema:
Ref_Document_Types (Document_Type_Code, Document_Type_Name, Document_Type_Description)
Ref_Calendar (Calendar_Date, Day_Number)
Ref_Locations (Location_Code, Location_Name, Location_Description)
Roles (Role_Code, Role_Name, Role_Description)
All_Documents (Document_ID, Date_Stored, Document_Type_Code, Document_Name, Document_Description, Other_Details)
Employees (Employee_ID, Role_Code, Employee_Name, Gender_MFU, Date_of_Birth, Other_Details)
Document_Locations (Document_ID, Location_Code, Date_in_Location_From, Date_in_Locaton_To)
Documents_to_be_Destroyed (Document_ID, Destruction_Authorised_by_Employee_ID, Destroyed_by_Employee_ID, Planned_Destruction_Date, Actual_Destruction_Date, Other_Details)
Please answer with SQL.
assistant
Sure, I understand.
human
How many employees are there?
assistant
SELECT COUNT( employee_id ) FROM employees;
human
How many employee have the ability to authorize the destruction of documents?
assistant
SELECT COUNT( Destruction_Authorised_by_Employee_ID ) FROM Documents_to_be_destroyed;
human
What are the ids of those particular employees?
assistant
SELECT Destruction_Authorised_by_Employee_ID FROM Documents_to_be_destroyed;
human
Now how many employees can't authorize the destruction of documents.
assistant
SELECT SUM( employee_id ) FROM Employees EXCEPT SELECT Destruction_Authorised_by_Employee_ID FROM Documents_to_be_destroyed;
human
May I have the ids of those employees who cant authorize the destruction of documents?
assistant
SELECT employee_id FROM Employees EXCEPT SELECT Destruction_Authorised_by_Employee_ID FROM Documents_to_be_destroyed ;