Using supplied variables

The example using SYSTEM needs some manual intervention when the value of the SYSTEM variable must be changed (either at a setup workstation or using the variable table panel). But you can use dependent variables even in a fully automatic system, if the independent variable is a supplied variable.

This example shows how to change variables automatically, depending on the input arrival day of the occurrence. The supplied variable is ODAY, which has values from 1 (Monday) to 7.

This is how the dependent variable (HLQ1) is defined:

Figure 1. Specifying the variable HLQ1

EQQJVVMP ----------------- MODIFYING A JCL VARIABLE ---------------------
Command ===>

Enter/Change data below, or DEP command to create/modify dependency,
enter VER command to define verification rules.

Variable table        : SPECIALONMONDAY
Variable name         : HLQ1

DESCRIPTION        ===> high-level-qualifier
                                     Descriptive text
DEFAULT VALUE      ===> OTHER.DAYS__________________________________
UPPER CASE         ===> Y            Y - Yes, N - No
SETUP              ===> Y            Y - Yes, N - No, P - Prompt
SUBSTITUTION EXIT  ===> ________     A load module name
VALUE REQUIRED     ===> Y            Y - Yes, N - No

The default value, OTHER.DAYS, is used when there is no match on the independent variable values.

Figure 2. Specifying a special value for Monday (ODAY=1)

EQQJVDVL ------------ JCL VARIABLE DEPENDENCY VALUE LIST ----  ROW 1 TO 1 OF 1
Command ===>                                                  Scroll ===> PAGE

Enter any of the row commands below:
I(nn) - Insert, R(nn), RR(nn) - Repeat, D(nn) - Delete
Enter DEL   command to delete this dependency.

Dependent variable    : HLQ1              high-level-qualifier
Variable table        : SPECIALONMONDAY
Default value         : OTHER.DAYS

INDEPENDENT
VARIABLE           ===> ODAY

Row
cmd
'' VALUE OF INDEPENDENT ===> 1
    VALUE OF DEPENDENT   ===> DAY1

HCL Workload Automation for Z substitutes DAY1 for the HLQ1 variable when ODAY=1. On other days, it uses the default value OTHER.DAYS. ODAY is a setup or submit variable, so HLQ1 can also be specified as a setup or submit variable.