The  Change  Data  Queue  Description  command   changes  one  or  more
attributes for  a data queue.  Only standard  data queues are supported
(not  DDM data queues).   The API QMHQCDQ is  used.  Not all attributes
are supported by the API.

A typical command would be:

             CHGDTAQD   DTAQ(xxx) AUTORCL(*YES)

The AUTORCL attribute would be changed to *YES.

All attributes must not be *SAME.

CHGDTAQD escape messages you can monitor for
--------------------------------------------

None.  Escape messages from based on functions will be re-sent.

CHGDTAQD Command parameters                           *CMD
---------------------------

   DTAQ          The qualified name  of the data  queue to be  changed.
                 The  library  value defaults  to  *LIBL.   A  specific
                 library or *CURLIB may also be used.

   AUTORCL       A  *YES/*NO  value  for  whether  to  change  the Auto
                 Reclaim attribute.  *SAME is the default.

                 *YES may be specified  to allow the storage  allocated
                 to the data  queue to be set to the  initial number of
                 entries when the queue is empty.

                 *NO  may be specified to  retain the allocated storage
                 when the queue is empty.

   ENFRCLOCK     A *YES/*NO  value for  whether to  change the  Enforce
                 Lock attribute.  *SAME is the default.

                 Specifying  *YES determines  if  system supplied  data
                 queue  operations  will  enforce  a  lock  on  a  data
                 queue.     This  parameter   cannot  be  specified  on
                 CRTDTAQ.

                 For a complete  explanation of the  locking functions,
                 see the QMHQCDQ API documentation.

                 *NO  may  be  specified   to  ignore  system  supplied
                 locking.

   TEXT          Whether  to change the value  of the Text description.
                 *SAME is the default.


Restrictions
------------

None.

Prerequisites
-------------

The following TAA Tools must be on your system:

     CHKOBJ3         Check object 3
     RSNLSTMSG       Resend last message
     RTVDTAQD        Retrieve data queue description
     SNDCOMPMSG      Send completion message
     SNDESCINF       Send escape information
     SNDESCMSG       Send escape message

Implementation
--------------

None, the tool is ready to use.

Objects used by the tool
------------------------

   Object        Type    Attribute      Src member    Src file
   ------        ----    ---------      ----------    ----------

   CHGDTAQD      *CMD                   TAADTQV       QATTCMD
   TAADTQVC      *PGM       CLP         TAADTQVC      QATTCL