This entry is used to identify the type of data structure being defined.
If a data structure is not being defined, this entry must be left blank.
Entry
Explanation
Blank
The data structure being defined is not a program status or data-area
data structure; or a data structure is not being defined on this specification
S
Program status data structure. Only one data structure may be designated
as the program status data structure.
U
Data-area data structure.
RPG IV retrieves the data area at initialization
and rewrites it at end of program.
If the DTAARA keyword is specified, the parameter to the DTAARA
keyword is used as the name of the external data area. If the name is a variable,
the value must be set before the program begins. This can be done by:
Passing the variable as a parameter.
Explicitly initializing the variable with the INZ keyword.
Sharing the variable with another module using the IMPORT and EXPORT |keywords,
and ensuring the value is set prior to the call.
If the DTAARA keyword is not specified, the name in positions 7-21 is
used as the name of the external data area.
If a name is not specified either by the DTAARA keyword, or by positions
7-21, *LDA (the local data area) is used as the name of the external data
area.