Rational Developer for System z
Enterprise PL/I for z/OS, Version 3.8, Language Reference Manual

INPUT, OUTPUT, and UPDATE attributes

The INPUT, OUTPUT, and UPDATE function attributes specify the direction of data transmission allowed for a file. INPUT specifies that data is transmitted from a data set to the program. OUTPUT specifies that data is transmitted from the program to a data set, either to create a new data set or to extend an existing one. UPDATE, which applies to RECORD files only, specifies that the data can be transmitted in either direction. A declaration of UPDATE for a SEQUENTIAL file indicates the update-in-place mode.

Read syntax diagramSkip visual syntax diagram   .-INPUT------.
>>-+-+--------+-+----------------------------------------------><
   | '-OUTPUT-' |
   '-+--------+-'
     '-UPDATE-'
 

Default: INPUT


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