cobol
SLET uttalande

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Anmärkningar

DELETE uttalet raderar poster från masslagring. Vissa kompilatorer tillåter att DELETE uttalandet används med en FILE klausul, för att radera FD namn (tillsammans med tillhörande indexeringsstrukturer som kan krävas av databashanteringsmotorn som används).

COBOL DELETE-syntaxdiagram

Radera en post, skriv in det primära nyckelfältet

   identification division.
   program-id. deleting.

   environment division.
   configuration section.

   input-output section.
   file-control.
       select optional indexed-file
       assign to "indexed-file.dat"
       status is indexing-status
       organization is indexed
       access mode is dynamic
       record key is keyfield
       alternate record key is altkey with duplicates
       .

   ...

   procedure division.

   move "abcdef" to keyfield

   *> Delete a record by index
   delete indexed-file record
      invalid key
          display "No delete of " keyfield end-display
      not invalid key
          display "Record " keyfield " removed" end-display
   end-delete

   perform check-delete-status

   ...


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