HP OpenVMS Systems Documentation

HP COBOL User Manual Previous Contents Index I I-O-CONTROL paragraph #1 I-O-CONTROL paragraph #2 I/O device     accessing at run time I/O errors I/O exception conditions handling I/O handling     AT END condition     INVALID KEY condition     using Declarative USE procedures     using file status values     using RMS completion codes I/O operations     differences with RMS special registers #1     differences with RMS special registers #2 I/O statements     and Screen Section video forms     and video forms     low-volume I/O system     building a COBOL file specification Image activation optimization -include flag Index data item     declaration     modifying with SET     where defined Index name     subscript value         compiler implementation specifications Indexed file     access modes     alternate key     and ISAM mapping     AT END condition     capabilities     creating     creating and populating     defining     design considerations     I/O statements     index     INVALID KEY condition     invalid key condition     key         duplicate         length         location     number of key data items         compiler implementation specifications     open modes     optional key     organization         advantages         disadvantages         specifying     organization (fig.)     populating     primary key     processing     reading         dynamically             example             with READ PRIOR         randomly             example         sequentially             example     reading from other language     reorganizing     See also Optimization     SELECT statements     specifying file organization and access mode     updating         random access mode         sequential access mode     updating records         dynamically         randomly             example         sequentially             example     valid I/O statements (tab.)     writing Indexes     initializing Indexing     advantages     efficiency order Indexing compared with subscripting INITIAL clause     use of Initializing     tables INPUT and OUTPUT PROCEDURE phrases     example INSPECT statement     AFTER     BEFORE     common errors     CONVERTING     function     how the INSPECT statement inspects data     implicit redefinition         values resulting from (tab.)     relationship among INSPECT argument, delimiter, item value, and argument active position (tab.)     REPLACING option     REPLACING phrase         interference in the replacement argument list         replacement argument         replacement argument (fig.)         replacement argument list         replacement value         sample (fig.)         search argument     sample (fig.)     TALLYING option     TALLYING phrase         argument list         arguments         counter         interference in the tally arguemnt list         leading delimiter of operation (tab.)         scan with separate tallies             results of (tab.) Inspecting data     active/inactive arguments     BEFORE/AFTER     finding a match     implicit redefinition     INSPECT operation     interference in tally argument list     REPLACING     scanner setting     tally argument     tally counter     TALLYING phrase Interference     in replacement argument list     in tally argument list Intermediate data items Intermediate result item Interprogram communication     accessing another program's Data Division     accessing another program's Data Division_>Linkage Section     accessing another program's Data Division_>USING phrase     additional information on     argument list     CALL statement         passing arguments     calling COBOL programs     calling non-COBOL programs     calling non-COBOL programs         example     calling routines         defining the argument         determining the type of call         locating the result         making the call     calling system service routines #1     calling system service routines #2         checking condition values         EXTERNAL phrase         in a procedure call         library return status         VALUE IS clause     calling system service routines condition value symbols     common language environment         using COBOL in     contained programs         COMMON clause         GLOBAL clause         sharing data         sharing files         sharing other resources         USE procedures     examples     function value     multiple run unit concepts         calling procedures         definition     multiple run unit examples     OpenVMS Alpha Calling Standard     OpenVMS Run-Time Library routines     OpenVMS System Services routines     program attributes         EXTERNAL clause         INITIAL clause     register and stack usage     restrictions on     See also Calling routines     shareable images     supplementary information on     transferring execution control         CALL statement     transferring flow of control         CALL statement             nesting         EXIT PROGRAM statement Invalid key condition     planning for INVALID KEY phrase     use of Previous Next Contents Index