GGlossary
278 U929-J-Z125-9-76
FPA base
See free place administration.
FPA extent
See free place administration.
FPA page
Free place administration page.
free place administration (FPA)
Free space is managed both at realm level (FPA pages) and at page and table
level. Free place administration of the pages is carried out in a base table (FPA
base) and possibly in one or more extension tables (FPA extents) created by
means of an online realm extension or BREORG.
function code
Coding of a DML statement; included in information output by means of the DAL
command DISPLAY or by UDSMON.
G
group item
Nameable grouping of record elements.
H
hash area
Storage area in which UDS/SQL stores data and from which it retrieves data on
the basis of key values which are converted into relative page numbers. A hash
area may contain the record addresses as well as the records themselves.
A direct hash area contains the records themselves; an indirect hash area, by
contrast, contains the addresses of records stored at so me other location.
hash routine
Module which performs hashing.
hashing
Method of converting a key value into a page address.