In a complex COBOL program, you notice the extensive use of the "LINKAGE SECTION." What is the primary purpose of this section, and when is it commonly used?
- It declares variables used only within the called subprogram
- It defines data items shared between a calling program and a called subprogram
- It indicates the sequence of program execution
- It specifies the input-output operations for external files
The "LINKAGE SECTION" in COBOL is used to define data items shared between a calling program and a called subprogram. It allows data to be passed between programs, facilitating communication and data sharing in a modular and organized manner.
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