The  Compare  Data  Area Description  command  compares  the  CRTDTAARA
command  parameters  of two  data  area  objects.   A  spooled file  is
created of any differences.

The major attributes which are not compared are:

      - Owner
      - Authorizations
      - Text description
      - Create date and time

A typical command would be:

             CMPDTAARAD   FRMDTAARA(xxx) TODTAARA(yyy)

A spooled file would be created with any differences shown.

An  option exists to send  an escape message if  differences exist.  An
option exists to delete the spooled file if no differences exist.

It is valid to compare using a DDM data area.

CMPDTAARAD escape messages you can monitor for
----------------------------------------------

      TAA9895    Differences exist (optional based on ESCAPE parm)

Escape messages from based on functions will be re-sent.

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

   FRMDTAARA     The  qualified name  of  the  From  Data  Area  to  be
                 compared.    The  library  value  defaults  to  *LIBL.
                 *CURLIB may also be used.

   TODTAARA      The  qualified   name  of  the  To  Data  Area  to  be
                 compared.   The  default  is  *FRMDTAARA  meaning  the
                 same Data  Area name  as in  the FRMDTAARA  parameter.
                 The library  value defaults to blanks.   If no name is
                 entered, *LIBL  is  assumed.    *CURLIB  may  also  be
                 used.

   ESCAPE        Whether  to  send an  escape  message  if  differences
                 exist.   The default is  *NO which means  a completion
                 message is sent.

                 *YES  may be specified to  send TAA9895 if differences
                 exist.

   DLTSPLF       Whether to  delete the  spooled file if  there are  no
                 differences.     The  default  is   *YES  meaning  the
                 spooled  file is deleted if  no differences are found.
                 The spooled  file is  always retained  if  differences
                 exist.

                 *NO may  be specified  to ensure  a spooled file  will
                 exist  regardless  of  whether  differences  exist  or
                 not.

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

None.

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

The following TAA Tools must be on your system:

     CHKOBJ3         Check object 3
     EDTVAR          Edit variable
     RTVDTAARAD      Retrieve data area description
     RTVSYSVAL3      Retrieve system value 3
     SNDCOMPMSG      Send completion message
     SNDESCMSG       Send escape message

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

None, the tool is ready to use.

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

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

   CMPDTAARAD    *CMD                   TAAARAJ       QATTCMD
   TAAARAJC      *PGM       CLP         TAAARAJC      QATTCL
   TAAARAJR      *PGM       RPG         TAAARAJR      QATTRPG