IBM OS/390 用户手册

Direct access method files are processed with BDAM.

VSAM files are handled in the same way as under VSE.

In OS/390 RPG II, a CALL statement for a COBOL subprogram must not be
preceded by a CALL 

′

ILBDSET0

′.

It is not possible to call PL/I subprograms from an OS/390 RPG II program.

For VSE see PTF UN95321 (APAR PN88472).

For OS/390 see PTF UN97731 (APAR PN90587).

Chapter 14. RPG II