ABAP_to_the_Future

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ABAP in Eclipse
SAP has not been known for the quality of the graphics within the SAP GUI. You
are probably used to the runtime analysis within the ABAP Workbench—Transaction
SE30 or more recently SAT—which gives detailed information about how
a given application spends its processing time. The problem is that there is just so
much information that you tend to get swamped. You’ll see a nice set of three bars
indicating whether the most time is spen t in the database or in the application
server, and if it turns out that the server is the problem, then you have to try and
get to grips with the big tree that indicates how much time is spent in each routine.
That is not the end of the world, but it takes some getting used to, and the equivalent
in ABAP in Eclipse is much friend lier to the eye. To demonstrate this, up
next is a silly example in which a small fraction of the program performs mathematical
calculations, and the bulk of the program performs SELECT statements
within a loop. (In fact, the example isn’t as silly as all that, because you do tend to
find this situation all too often in real-life programs.)
Say that every time a monster learns that there is such a thing as American Airlines,
the monster instantly wants to go on a flight with them. Thus, Listing 1.16
combines the popular SFLIGHT example with a monster example.
DO 100 TIMES.
SELECT COUNT( * )
FROM sflight
WHERE carrid = 'AA'.
CHECK sy-subrc = 0.
ADD 1 TO gd_flying_monsters.
ENDDO.
Listing 1.16 SFLIGHT and Monster Mash-Up
This example is only good for showing wh at not to do; obviously, we only need
to read the database once. To invoke the runtime analysis, select your ABAP program,
follow the menu path Profile as 폷 ABAP Application, and then type
“trace” into the top-right-hand corner of the screen, where it says Quick Access.
You’ll see the trace file as per usual. When you expand it and click on it, instead
of bars saying how much time was spent in the database and in the server, you’ll
see a pie chart showing the exact same thing. That probably does not impress you
too much, but as a next step click the Call Timeline tab at the bottom. Then,
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