Examples

In this example, the symbol parameters COUNTY, TOWN, and STATE are set by the SET statement. The EXPORT statement indicates that the symbolic parameters COUNTY and STATE are to be made available to the MYPROG program that is executed in STEP1:
```
//MYEXP  EXPORT SYMLIST=(COUNTY,STATE)
//STEP1 SET COUNTY=DUTCHESS,TOWN=FISHKILL,STATE=NY
//STEP1 EXEC PGM=MYPROG
```
Exported symbolic parameters are resolved to the most recent value to which they are set. In the following example, MYPROG1 in STEP1 receives an exported value of SYMVAL1 for SYM1. Subsequently, the program MYPROG1 in STEP2 receives an exported value of NEWSYMVAL for SYM1. In STEP3, the exported value for SYM3 is null, because its value was not set before MYPROG1 executing in STEP3. In STEP4 and STEP5, MYPROG1 receives the exported value of SYMVAL3 for SYM3.
The value of SYMVAL2, for symbol SYM2, is made available to all of the job steps following the export statement labeled MYEXPR1. The value of SYMVAL1, for symbol SYM1, is made available to STEP1. The updated value of NEWSYMVAL, for symbol SYM1, is made available to STEP2 and the remaining job steps:
```
//MYEXPR1 EXPORT SYMLIST=(SYM1,SYM2)          
//        SET    SYM1=SYMVAL1,SYM2=SYMVAL2    
//STEP1   EXEC   PGM=MYPROG1                  
//STEP2   EXEC   PGM=MYPROG1                  
//        SET    SYM1=NEWSYMVAL               
//MYEXPR2 EXPORT SYMLIST=SYM3                 
//STEP3   EXEC   PGM=MYPROG1                  
//STEP4   EXEC   PGM=MYPROG1                  
//        SET    SYM3=SYMVAL3                 
//STEP5   EXEC   PGM=MYPROG1          
```

This example shows exported symbol resolution when symbols are used inside procedures:

_//         EXPORT SYMLIST=*
_//PROC2    PROC WHAT=SPOCK
_//         SET WHO=LEONARD
_//P2STEP1  EXEC PGM=IEBGENER
_//SYSIN    DD DUMMY
_//SYSPRINT DD SYSOUT=*
_//SYSUT2   DD SYSOUT=*
_//SYSUT1   DD *,SYMBOLS=(JCLONLY)
WHO = &WHO
WHAT = &WHAT
_//PROC2    PEND
_//PROC1    PROC
_//P1STEP1  EXEC PGM=IEBGENER
_//SYSIN    DD DUMMY
_//SYSPRINT DD SYSOUT=*
_//SYSUT2   DD SYSOUT=*
_//SYSUT1   DD *,SYMBOLS=(JCLONLY)
WHO = &WHO
_//P1STEP2  EXEC PROC2,WHAT=ROCK
_//         SET WHAT=SCISSORS
_//         SET WHO=SHELDON
_//PROC1    PEND
_//         SET WHO=HOWARD
_//JSTEP1   EXEC PROC1
_//         SET WHO=PENNY
_//         SET WHAT=PAPER
_//JSTEP2   EXEC PROC1
_//JSTEP3   EXEC PROC1
_//         SET WHO=AMY
_//JSTEP4   EXEC PROC2,WHAT=LIZARD
_//JSTEP5   EXEC PROC2

Exported symbolics for this job resolve for each step as follows:

Step Name  Proc Step   WHO        WHAT
---------  ---------   ---        ----
JSTEP1     P1STEP1     HOWARD
P1STEP2    P2STEP1     PENNY      PAPER
JSTEP2     P1STEP1     PENNY
P1STEP2    P2STEP1     SHELDON    SCISSORS
JSTEP3     P1STEP1     PENNY
P1STEP2    P2STEP1     AMY        SCISSORS
JSTEP4     P2STEP1     LEONARD    LIZARD
JSTEP5     P2STEP1     LEONARD    SPOCK