Estimating Pageable Map Storage › Estimating the Amount of Storage per Map Page › Amount of Storage per Detail Occurrence

Amount of Storage per Detail Occurrence

The amount of storage per detail occurrence, in bytes, is calculated by adding the following values:

• The length (in bytes) of all variable fields in the detail occurrence
• The number of variable fields in the detail occurrence multiplied by 40 (40 is the number of bytes of overhead for each variable field)
• The number of bytes of overhead for the detail occurrence (this value is always 28)

Example

The fields on the following screen were used as the basis for the calculations.

EMPLOYEE PERSONAL DATA


EMPLOYEE NAME:?___________________________________
EMPLOYEE NUMBER:? _____        SOCIAL SECURITY NUMBER:?_____________










_______________________________________________________________________________
PAGE:?____

The following calculations were used to estimate the amount of storage required for the screen:

Length of all variable fields ......... . 38               

Number of variable fields (x40)..........120               

Overhead.............................. .. 28 

              _____________________________________________            

   Storage per detail occurrence..........186