Memorex LOCK - VERSION 2-24 Información técnica descargar pdf (Pagina 202)

DLBL Options

4-14 User Reference

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R=n Allocate by

Logical Records

(n=1 to 999999)

Specifies the number of logical records the

file is to contain. BIM-EPIC uses this

number to calculate the size of the extent

required.

S Reuse same space Reuses the same extent space occupied by

the current version for the next version of

the dataset. This option affects single extent

non-generation datasets only. When you use

this option, you must also inhibit truncation,

option code N, for the dataset.

T Dataset drop Deletes the label information for this dataset

from the label area when the dataset is

closed.

Note: The label information is not deleted

from the VTOC. If the problem program

subsequently issues another open for the

file, this label will not be found. This option

is useful for programs that issue more than

one open for the same DTF name. Dataset

drop differs from dataset concatenation,

option code E, in that concatenation causes

two or more datasets to be processed as a

single dataset when a single open is issued

by the program.

V=n Access the

specified version

(n=1 to 65535)

Specifies a specific version to access. This

option is valid for cataloged datasets only.

Remember that the latest version is always

version 1.

X Delete at close or

EOJ

(non-generation

files only)

Deletes the dataset at close if it is closed for

input or at end of job if the dataset still

exists. This option provides the same

function as the combination of the option

code P and the option code D. The

configuration option JOBACCT=YES is

required for this option. This option is valid

only for cataloged, non-generation datasets.

Code Action Description

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