Adapters > Using the Adapter for Adabas > Platform-Specific Functionality

Platform-Specific Functionality

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The Adapter for Adabas on UNIX, Windows, and OpenVMS, has more restrictions than on z/OS. These restrictions are described below.

On all platforms, if an error occurs while Adabas commands are being processed, then the communication block (CB) is returned along with the Response Code (RC) Additions 2 field, in 2 or 4 bytes binary format. The Additions 2 field indicates the specific reason for the Response Code. The Adapter for Adabas displays both RC and Additions 2 fields in the message. This information is available in the trace as well.

Reference: Functionality on z/OS

The following conditions apply when using the adapter on z/OS platforms:

  • Sub/super descriptors defined with "NC=YES" and "MISSING=ON" parameters cannot be used to search for SQL NULL values, as that causes an Adabas RC 61.
  • If you assign Server or Application Administrator privileges to user IDs other than the one used to install the server, to allow these additional administrators to create metadata for Adabas data sources, you must do one of the following:
    • Include the Adabas load library in your SYS1.PARMLIB(LNKLSTnn) member.
    • Use the STEPLIBLIST feature and add the Adabas load library to the sanctioned list file. For full details on the STEPLIBLIST feature, see the IBM publication UNIX System Services Planning Guide.

      Tip: To locate the information in that document, search for STEPLIBLIST.

Reference: Functionality on UNIX and Windows

The following conditions apply when using the adapter on UNIX and Windows platforms:

  • You cannot use non-descriptor fields as search criteria.
  • The parameter NDFIND is automatically set to the OFF value if the adapter is executed in a non-mainframe environment. If non-descriptor fields are used as key fields, the entire database is read.
  • If the Master File non-descriptor field is declared as an indexed field (INDEX=I or FIELDTYPE=I) and used as a key field, the result from Adabas is RC 61.
  • If an occurrence of an MU (multi-value) field is deleted, the adapter shifts all other occurrences into its place and assigns an empty value for the last occurrence. If this field has an NU (null suppression) option, the last occurrence will be automatically deleted by Adabas.
  • DBNO must be assigned to a valid numeric value for the existing database.

Reference: Functionality for OpenVMS Platform

Adabas on OpenVMS does not allow a direct request for sub/superdescriptors values. For this reason, there are some limitations on using these fields (with TYPE=NOP/SPR in ACX) in server requests to Adabas:

  • NOP fields cannot be printed or displayed, even if they are alphanumeric.
  • NOP/SPR fields cannot be used in functions (MIN, MAX, and so on).
  • If NOP/SPR fields are used in the IF/WHERE criteria, then CALLTYPE=RL is automatically changed to CALLTYPE=FIND. It can change the sequence of returning data rows on OpenVMS in comparison with sequence on other platforms.
  • NOP fields cannot be used in a complex IF/WHERE clause.
  • NOP fields cannot be used for joining.

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