Database DBD:

 PRINT NOGEN
 DBD   NAME=AIHDAM,ACCESS=(HDAM,VSAM),RMNAME=(DFSHDC40,4,80,500)   
 DATASET  DD1=AIHDAM,DEVICE=3390,BLOCK=4096,SCAN=5  
* 
 SEGM  NAME=LANGUAGE,PTR=H,PARENT=0,BYTES=19   
  FIELD  NAME=(EMPL6,SEQ,M),BYTES=4,START=1,TYPE=C  
  FIELD  NAME=LANG6,BYTES=15,START=5,TYPE=C    
  FIELD  NAME=/SX1    
* 
  LCHILD NAME=(SEG6IX1,AIHDAMX),PTR=INDX  
  XDFLD  NAME=IXEMP6,SRCH=(EMPL6),SUBSEQ=/SX1,NULLVAL=BLANK   
* 
 DBDGEN
 FINISH
 END                                                                    

Secondary index DBD:

 PRINT NOGEN 
 DBD   NAME=AIHDAMX,ACCESS=INDEX 
 DATASET  DD1=AIHDAMX,OVFLW=AIHDOVF,DEVICE=3390 
*  
 SEGM  NAME=SEG6IX1,PARENT=0,BYTES=8  
  FIELD NAME=(IXEMP6X1,SEQ,M),BYTES=8,START=1   
  LCHILD NAME=(LANGUAGE,AIHDAM),INDEX=IXEMP6,PTR=SNGL
*  
 DBDGEN 
 FINISH 
 END                                                                

 PCB   TYPE=TP,MODIFY=YES,EXPRESS=YES
 PCB   TYPE=TP,EXPRESS=NO,MODIFY=YES,SAMETRM=YES    
* 
 PCB   TYPE=DB,DBDNAME=AIHDAM,PROCOPT=A,KEYLEN=4    
 SENSEG  NAME=LANGUAGE,PARENT=0 
* 
 PCB   TYPE=DB,DBDNAME=AIHDAM,PROCOPT=GO,KEYLEN=4,PROCSEQ=AIHDAMX  
 SENSEG  NAME=LANGUAGE,PARENT=0 
* 
 PSBGEN LANG=COBOL,PSBNAME=AIHDPSB,CMPAT=YES   
 END                                                                    

This PSB is member AIHDPSB in the PSB data set because of the PSBNAME=AIHDPSB parameter in the PSB.

FOCPSB=EXTENDED,$   
PCBNAME=   , PCBTYPE=TERM,$   
PCBNAME=   , PCBTYPE=TERM,$   
PCBNAME=   , PCBTYPE=TERM,$   
PCBNAME=AIHDAM     ,PCBTYPE=DB,$ 
PCBNAME=IXEMP6     ,PCBTYPE=DB,$                                         

This FOCPSB is member AIHDPSB in the FOCPSB data set because it must have the same member name as its corresponding PSB.

FILE=AIHDAM   ,SUFFIX=IMS   ,$  
SEGNAME=LANGUAGE ,SEGTYPE=S1 ,$ 
 FIELD=EMPLOYEE_ID6 ,ALIAS=EMPL6.HKY   ,I9 ,I4  ,$ 
 FIELD=LANGUAGE     ,ALIAS=LANG6.IMS   ,A15,A15 ,$ 
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$     SYNTAX FOR DESCRIBING 2ND'RY INDEX         $$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
GROUP=EMPLIX        ,ALIAS=IXEMP6.SKY  ,I9 ,I4  ,$ 
 FIELD=EMPLY6       ,ALIAS=EMPLOYEE_ID6,I9 ,I4  ,$ 

This Master File is member AIHDAM in the Master File data set because the first database PCB in the AIHDPSB FOCPSB specifies PCBNAME=AIHDAM.