Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Compiler and Runtime Migration Guide


Manual conversion actions

If the design of your application makes it impossible to convert to VSAM, you can restructure the application to separate the BDAM statements into an I/O program that can be compiled by the OS/VS COBOL compiler. You can then separate the rest of the application logic into programs that can be upgraded to Enterprise COBOL.

After this separation is complete, your application consisting of both OS/VS COBOL programs and Enterprise COBOL programs will run under Language Environment. For details on running existing programs under Language Environment, see:
Note: This method is presented only as a short-term migration path. Because OS/VS COBOL is no longer in service, you should rewrite your programs to eliminate the dependency on OS/VS COBOL and BDAM. (If you do not mind using an unsupported compiler, this method can still work for you.)

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