Quelltext der Seite COBOL-ASSIGN-CLAUSE

When ASSIGNing a COBOL-internal file name to an external file (aka: DDname), the external name is prefixed with certain strings to establish the type (class) of device and record organization. The external name is also called the ''system name'' of a file, while ''somefile'' is the COBOL-internal name.

 SELECT SOMEFILE ASSIGN TO CLASS-ORGANIZATION NAME.

The device classes are:
:{|class="wikitable"
!Code
!Class
|-
|DA
|Direct Access (mass storage)
|-
|UR
|Unit Record (card reader/punch and printers)
|-
|UT
|UTility (generally tape or PS disk)
|}

The organisation could have the following values:
:{|class="wikitable"
!Code
!Organization type
!Valid for Classes
|-
|S
|standard sequential
|DA, UR, UT
|-
|D
|direct access
|DA
|-
|R
|relative access
|DA
|-
|I
|ISAM (Indexed Sequential Access Method)
|DA
|}

== Weblinks ==
* [https://turnkey-mvs.yahoogroups.narkive.com/Hf2qN6Ls/cobol-select-and-assign Cobol Select and Assign], Turnkey-MVS Group archive

[[Category: MVS]]
[[Category: Programmierung]]