The SAME SORT AREA clause optimizes the storage area assignment to a given SORT statement.
The SAME SORT AREA clause is syntax checked, but is treated as documentation.

SAME SORT AREA Clause - Format
.-------------.
(1) V |
>>-SAME--SORT------+------+--+-----+--file-name-3----file-name-4-+-><
'-AREA-' '-FOR-'
Notes:
- Syntax-checked only.
When the SAME SORT AREA clause is specified, at least one file-name specified
must be a sort file. Files that are not sort files may also be specified.
The following rules apply:
- More than one SAME SORT AREA clause may be specified. However, a given
sort file must not be named in more than one such clause.
- If a file that is not a sort file is named in both a SAME AREA clause
and in one or more SAME SORT AREA clauses, all the files in the SAME AREA
clause must also appear in that SAME SORT AREA clause.
- Files named in a SAME SORT AREA clause need not have the same organization
or access.
- Files named in a SAME SORT AREA clause that are not sort files do not
share storage with each other unless the user names them in a SAME RECORD
AREA clause.