IMS DB
$IM-POS DEDBview [SSA]
| DEDBview | Data Entry Data Base PCB | 
| SSA | Segment Search Argument, which triggers COBOL MOVEs to or from the generated I/O area IM-IO-AREA; default is IM-IO-AREA with a length of 32,000 bytes. To override the length, set IM-IO-AREA-LEN in your program or DDISYMB member. | 
| Specify only one SSA per hierarchical level along a path. These arguments generate 8-byte records in Working Storage to hold the corresponding values. | 
Comments:
05 IM-POS-LENGTH PIC S9(04) COMP. 05 IM-POS-DATA-AREA-PONAME OCCURS 240. 10 IM-POS-AREA-DDNAME PIC X(08). 10 IM-POS-INFO 15 IM-POS-CYCLS-COUNT PIC S9(8) COMP. 15 IM-POS-VSAM-RBA PIC S9(8) COMP. 10 IM-POS-UNUSED-SEQDEP-CIS PIC S9(8) COMP. 10 IM-POS-UNUSED-INDEP-CIS PIC S9(8) COMP.