HP 3000 Manuals HP 3000 Manuals
What Are Storage Items? The dictionary storage items are somewhat different from the other dictionary entries. In contrast to dictionary field specifications, storage items do hold application data. The dictionary storage items are: * Variables. * Calculated items. * Numeric constants. * Alphanumeric constants. * Scratch-pad field names. * Application titles. * Work areas. HP ALLBASE/4GL variables are similar to variables in other programming systems. You can specify the number of characters, the edit code, and number of decimal places for a variable. Calculated items are variables that are evaluated each time they are called by an application. The value of a calculated item is the result of an arithmetic expression or a logic function that is evaluated when the item is called. The scratch-pad contains up to 99 scratch-pad fields. Each scratch-pad field is a temporary storage area that you can use for storing data within an application. Each scratch-pad field takes on the attributes of the data written into it, and the combined scratch-pad only uses the amount of system memory required to hold the data contained within it at any given time.