Hi Robert, you can do this easily with a tool such as IBExpert. Just run 
Services / Database Statistics and this is the result:

TableName               Size            Usage%
CUSTOMER                        11,960,320      0.295
PARAMFIL                        16,384  1       0.000
POSTCODES               3,903,012,864   96.335
POSTCODE_MISSING                16,384  1       3.000
                                        
I've removed a lot more detail such as number of records, pages, fill 
size etc.

Alan J Davies
Aldis


On 26/11/2015 05:38, [email protected] [firebird-support] wrote:
> I have a large database.
>
> I have some tables that I believe are unnecessary and are taking up too
> much space.
>
> I need to prove this to the boss. to be allowed to change the system.
>
>
> How can I generate a report that gives me a list of table names and
> percentage of overall database the table is holding.
>
>
> Kind Regards,
>
>
> Robert.
>
>
> 

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