Data Definition Language (DDL) Reference Manual

Definitions and Records
Data Definition Language (DDL) Reference Manual—529431-004
5-15
Record Structure Syntax
sec-extent-size
specifies the secondary extent size. You can specify sec-extent-size
either as an integer or as the name of a constant in the open dictionary. The
value sec-extent-size must be an integer from 1 through 65,535.
Default: 32 pages
MAXEXTENTS maximum-extents
sets the maximum number of extents the file can have. You can specify maximum-
extents either as an integer or as the name of a constant in the open dictionary.
The value of maximum-extents must be an integer from 1 to n, where n is
determined by the available free space in the file label.
Default: 100
NO ODDUNSTR
specifies that all unstructured files be processed as even-unstructured files.
Enscribe unstructured files can be even-unstructured or odd-unstructured. In even-
unstructured files, an odd byte count given for reading, writing, or positioning is
rounded upward. Odd-unstructured files have no upward rounding; you always
read, write, or position at the byte count you give.
REFRESH
forces the operating system to copy the file’s label to disk whenever the file’s file
control block is updated.
SERIALWRITES
specifies that writes to the mirror disk be done serially.
Default: Mirror disk writes are done in parallel.
VERIFIEDWRITES
specifies that disk writes be verified by the disk process. Disk writes are verified by
comparing the data on the disk with the data in memory.
Default: Disk writes are not verified.
Record Structure Syntax
In the statement RECORD on page 5-8, record-structure specifies the data
structure of the record and (optionally) identifies primary and alternate keys.
For descriptions of line-item specification and 66-RENAMES-clause, see
Syntax Elements on page 5-21.
line-item specification ... [ 66-RENAMES-clause . ] ...