| Name | Description | Type | Additional information | 
|---|---|---|---|
| id | 
                         Primary Key  | 
                    globally unique identifier | 
                                 Required  | 
                
| user_id | 
                         Foreign key to user.  | 
                    globally unique identifier | 
                                 Required  | 
                
| user_planning_slot_type_id | 
                         Foreign key to user planning slot type id.  | 
                    globally unique identifier | 
                                 Required  | 
                
| date_from | 
                         Date from,  | 
                    date | |
| date_to | 
                         Date to,  | 
                    date | |
| description | 
                         Description of user planning slot.  | 
                    string | |
| modified_dateutc | 
                         Readonly system field managed by database, filled with GetUtcDate when adding,updating.  | 
                    date |