SSL Reference section
254 U929-J-Z125-9-76
9.2.3 Set entry SET NAME IS set-name
[POPULATION IS integer-1[ INCREASE IS integer-2]]
⎧CHAIN[ LINKED TO PRIOR] ⎫
⎧POINTER-ARRAY⎫ ⎧ATTACHED TO OWNER ⎫
[MODE IS ⎨ ⎬]
⎨ ⎬ ⎨DETACHED[ WITHIN realm-name -1]⎬
⎩⎩LIST ⎭ ⎩ [ WITH PHYSICAL LINK] ⎭⎭
[DYNAMIC REORGANIZATION SPANS integer-3 PAGES]
[INDEX NAME IS name
⎧ATTACHED TO OWNER ⎫
[PLACING IS ⎨ ⎬]
⎩DETACHED[ WITHIN realm-name-2]⎭
⎧DATABASE-KEY-LIS T ⎫
[TYPE IS ⎨REPEATED-KEY ⎬]]...
⎩ [DYNAMIC REORGANIZATIO N SPANS integer-4 PAGES]⎭
[MEMBER IS PHYSICALLY LINKED TO OWNER].
The set entry is used to specify the set to which the storage structure description applies
as well as
– to indicate the average size of the set occurrences
– to give information on the connection of the records within the s et occurrences
– to define placement and extent of reorganization for pointer arrays, lists, sort key tables
and set SEARCH key tables
– to indicate the type of set SEARCH key tables
– to add a pointer from member to owner.
The individual clauses of the set entry are explained be low.