Recupero record vuoti

[Giacomini]

Quando si cancella un libro il record relativo rimane vuoto. Aggiungendo un nuovo libro, Calibre gli assegna il numero successivo. La mia domanda è: è possibile conoscere i numeri dei record vuoti e riutilizzarli? Grazie

[theducks]

[google translated]
When you delete a book, its record remains empty. By adding a new book, Caliber assigns him the next number. My question is: is it possible to know the empty record numbers and reuse them? Thanks

No.
If you are using SQL (and you really need to be an expert) :
Those are {ID} Numbers and are not intended to be used again. All the Linkages are really just flagged.

If you are using the normal Calibre GUI:
They are just the current Line numbers. You should use the Delete (Recycle Icon) to clear all linkages

[Giacomini]

Grazie mille.