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Module 11:- Library Facility and sub-programming


IS EXTERNAL clause

  • With reference to example given in below image, if you want to access working storage data item of PGM2 in PGM1, declare them with ‘IS EXTERNAL’ clause
  • Syntax:-

    ws_data_item_declaration IS EXTERNAL.

  • Example:-

    O1 DATA-A PIC 9(03) IS EXTERNAL.






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