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CA Dynam for VSE User Guide

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Changing File Characteristics<br />

VB<br />

U<br />

Variable-blocked<br />

Undefined<br />

Default: Record <strong>for</strong>mat in the Catalog or else <strong>for</strong>mat remains unmodified<br />

SRTCORE=nnnnnn<br />

Specifies the amount of storage, in bytes, which <strong>CA</strong> SRAM is to use <strong>for</strong> this<br />

particular task. (Multiple tasks are permitted.) System per<strong>for</strong>mance may be<br />

enhanced by providing a specific storage size.<br />

Default: Twice the calculated minimum<br />

SORTIN=, SORTOUT= Requests <strong>CA</strong> SRAM <strong>for</strong> dynamic file sorting, and defines both when the file is<br />

to be sorted (input, output, or both) and the sort key fields to be used <strong>for</strong><br />

each. The sort fields may be specified in the normal <strong>CA</strong> SRAM key definition<br />

vector <strong>for</strong>mat, or as the name of a predefined Catalog sort key entry.<br />

The use of the "keyname" <strong>for</strong>mat is recommended since it provides maximum<br />

flexibility. With this <strong>for</strong>mat, the file may be sorted using many different sort<br />

keys without complex job control using continuation statements. It also<br />

permits changing sort key fields without job control modification, and it allows<br />

many files to share the sort key definitions. For more in<strong>for</strong>mation about<br />

maintaining sort key names, see the DYN<strong>CA</strong>T ALTER and DEFINE commands.<br />

=(keys)<br />

s<br />

l<br />

t<br />

Specifies each key field/vector, composed of four<br />

parameters, (s1,l1,t1,m1,s2,l2,t2,m2,...).<br />

relative field start position in the data record<br />

key field length in bytes<br />

sort key type:<br />

C/CH<br />

B/BI<br />

P/PD<br />

alphanumeric characters<br />

positive binary data<br />

packed decimal data<br />

m<br />

collating sequence required:<br />

A<br />

D<br />

ascending sequence<br />

descending sequence<br />

=keyname<br />

Identifies a <strong>CA</strong> <strong>Dynam</strong> Catalog Sort Key Record<br />

(SKNAME) containing the sort key vector to be used <strong>for</strong><br />

sorting the file.<br />

6–14 <strong>User</strong> <strong>Guide</strong>

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