role of rp-provide-from-last & rp-provide-from-frst macros

[Former Member]

Hi,

I have the following code :

******************************************************************************

REPORT  ZPYRLL01

Tables: PERNR.
Infotypes: 0002.

GET PERNR.
*rp-provide-from-last p0002 space pn-begda pn-endda.
*rp-provide-from-frst p0002 space pn-begda pn-endda.

WRITE: / 'Pernr ' , PERNR-PERNR , sy-vline ,
              'Pernr-Ename ' , (15) PERNR-ENAME , sy-vline ,
              'First Name ' , (8) p0002-VORNA , sy-vline ,
              'p0002-begda ' , (10) p0002-begda , sy-vline ,
              'p0002-endda ' , (10) p0002-endda , sy-vline ,
              'pn-begda ' , (10) pn-begda , sy-vline ,
              'pn-endda ' , (10) pn-endda.

******************************************************************************

I have tested it without both macros, with only the first macro and with only the second one.

And in the three trials I got the same results ?

(List of Personnel ranked by ascending pernrs)

So,

Q1 : What is the role of these two macros ?

Their presence or abscence change nothing in the result when processing.

Another Q :

If the GET PERNR statement beside filling ITs with data, do a loop.

Q2 : Then what is the role of Loop & Provide loops ?

We can replace WHEN & BETWEEN statement with an IF.

[Former Member]

A1:  Related to your question 1, please check whether there are multiple entries exist.

(A) The macro RP-PROVIDE-FROM-LAST retrieves the last (latest) data record which is valid in the data selection period. The macro makes sure that the last entry for a specified period is placed in the table header entry of the report output list.

(B) The macro RP-PROVIDE-FROM-FRST retrieves the first (start)data record which is valid in the data selection period. The first entry for a specified period is placed in the table header entry from an internal infotype table.

Ans 2:  When GET PERNR event occurs, the infotype records are imported to internal table Pnnnn. These tables then be processed in a Loop..EndLoop loop. And infotype with time constraint 3 must be processed by this way.

Thanks

Shailesh

[Former Member]

Thanks for your reply,

I already read these descriptions.

But, the problem is that these macros -appears for me- didn't do anything while using them in my code.

Get a look at this screen shot, it is the same for the 3 trials as I said.

Normally, I would get the last record (by time) in the specified period in the first line when using for e.g. the 'rp-provide-from-last'.

But what I got is the same when I only use GET PERNR without that macro (wich is the List of Personnel ranked by ascending pernrs).

Hope you get what meant.

[Former Member]

The only explanation I had till now, is that the two macros do their time evaluation based on the 'ENDDA' field, wich is the same for all the records in my case.

But I am not sure.