CA Dynam for VSE User Guide

Changing File Characteristics
SRTCORE=nnnnnn
Specifies the amount of storage, in bytes, which CA SRAM is to use for this
particular task. (Multiple tasks are permitted.) System performance may be
enhanced by providing a specific storage size.
Default: Twice calculated minimum.
SORTIN=, SORTOUT= Requests CA SRAM for dynamic file sorting, and defines both when the file is
to be sorted (input, output, or both) and the sort key fields to be used for
each. The sort fields may be specified in the normal CA SRAM key definition
vector format, or as the name of a predefined Catalog sort key entry.
The use of the cataloged keyname format is recommended since it provides
maximum flexibility. With this format, the file may be sorted using many
different sort keys without complex job control using continuation statements.
It also permits changing sort key fields without job control modification, and it
allows many files to share the sort key definitions. For more information about
maintaining sort key names, see the DYNCAT ALTER and DEFINE commands.
=(keys)
s
l
t
Specifies each key field/vector, composed of four
parameters, (s1,l1,t1,m1,s2,l2,t2,m2,...)
relative field start position in the data record
key field length in bytes
sort key type:
C/CH
B/BI
P/PD
alphanumeric characters
positive binary data
packed decimal data
m
collating sequence required:
A
D
ascending sequence
descending sequence
=keyname
Identifies a Catalog Sort Key Record (SKNAME)
containing the sort key vector to be used for sorting the
file.
SORTWRK=
Specifies the file name (maximum of 5 characters) of the label information
which is to be used as the CA SRAM work file. SYSnnn is the logical unit to be
used in accessing the file. If more than one dynamically sorted file is
processed in a single program, this parameter must be used to define the CA
SRAM work files. Naturally, more than one task cannot use the same work file
at the same time.
Chapter 6: Controlling File Independence 6–19