Data Definition Language (DDL) Reference Manual

Definitions and Records
Data Definition Language (DDL) Reference Manual—529431-004
5-14
Creation-Attribute Syntax
•
0 through 99
•
1,000 through 65,535
File codes 100 through 999 are reserved for use by HP.
Default: Zero
{ COMPRESS | DCOMPRESS | ICOMPRESS }
are only for key-sequenced files.
COMPRESS
turns on both index compression and data compression.
DCOMPRESS
turns on data compression.
ICOMPRESS
turns on index compression.
{ extent-size }
EXT { }
{ ( pri-extent-size [, sec-extent-size ] ) }
sets the extent size in pages.
extent-size
specifies the total extent size. You can specify extent-size either as an
integer or as the name of a constant in the open dictionary. The value
extent-size must be an integer from 1 through 65,535.
For structured files, extent-size must be a multiple of the file’s BLOCK
value.
For unstructured files, extent-size must be a multiple of the file’s
BUFFERSIZE value.
pri-extent-size
specifies the primary extent size. You can specify pri-extent-size either
as an integer or as the name of a constant in the open dictionary. The value
pri-extent-size must be an integer from 1 through 65535.
Default: 4 pages.
Note: In H06.28/J06.17 RVUs with specific SPRs and later RVUs, the default is 16
pages if a block of 32768 bytes is provided for key-sequenced files. For a list of the
required H06.28/J06.17 SPRs, see SPR Requirements for Increased Enscribe
Limits for the H06.28/J06.17 Release.