ABAP Chapter 6
 Message
 Debugging
 File Transfer
 Type Group

Message in ABAP

User Messages
 If user has entered inconsistent
values,you output a dialog message with
MESSAGE statement
 Dialog messages are stored in table T100
report ztest.
(Transaction : SE91)
….
AT SELECTION-SCREEN.
…
message e000(38) with ‘----’ ‘---’ ‘---’ ‘---’.
…

Message Type
Syntax
Message [ A<nnn> ](message class) with <field1> <field2> …
E, W, I, S

Messages Type - A(Abend)
Message A000(38)...
Program Start
Selection
Screen
A Message Exit

Messages Type - E(Error)
Message E000(38) ...
Program Start
Selection
New input
Screen
Require
E Message

Messages Type - W(Warning)
Message W000(38)...
Program Start
Selection New input
Screen
possible
W Message
Enter
List

Messages Type - I(Information)
Message I000(38)...
Program Start
Selection
Screen
I Message
Enter
List

Messages Type - S(Success)
Message S000(38)...
Program Start
Selection
Screen
List
(Next Screen)

Dynamic Message
rt ztest1.
meters today like sy-datum.
lection-screen.
oday <> sy-datum.
essage e000(38) with ‘Please enter today :’ sy-dat
f.
-of-selection.
e: / ‘Today is :’, today.

Debugging

Debugging Mode

Debugging Mode : Internal Table

Debugging Mode : Internal Table

Debugging Mode : Watchpoint

Watchpoint : SAP ECC 6.0

How to Set Debugging Mode
 If you want to test
transaction,enter /h in the
command field,press ENTER and
execute the transaction
 Set breakpoints in the program
Utilities->Breakpoints->Set
 Uses BREAK-POINT statement

ABAP Practice

File Transfer

File Transfer (Application Server)
x There are 3 steps for file transfer
 Open File
 Read/Write File
 Close File

File Transfer
Internal Table
customers like customers occurs 0 with heade
g_txt(50).
rs filename(128) default ‘customersdata.txt’
election.
from customers into table all_customers.

File Transfer
Opening a file
pen dataset filename for output in text mode
encoding default message msg_txt.
sy-subrc <> 0.
Write: ‘File cannot be opened .Reason :’,msg_
se.

File Transfer
* Transferring data to a file
Loop at all_customers.
Transfer all_customers to filename.
Endloop.
* Closing a file
Close dataset filename.
Endif.

Transaction : AL11

File Transfer (Appending Data)
pening a file
en dataset filename for appending in text m
encoding default message msg_txt.
sy-subrc <> 0.
Write: ‘File cannot be opened .Reason :’,msg_t
e.

Reading Data from OS File
Reading data from a file
rameters filename(128) default ‘customersdata.txt’ lower ca
ta msg_txt(50).
ta all_customers like customers occurs 0 with header line.
art-of-selection.
pen dataset filename for input in text mode
encoding default message msg_txt.
sy-subrc <> 0.
Write: ‘File cannot be opened .Reason :’,msg_txt.
se.

Reading Data from OS File
Do.
Read dataset filename into all_customers.
if sy-subrc <> 0.
Exit.
endif.
Append all_customers.
Enddo.
Close dataset filename.
Endif.

Deleting OS File
rs filename(128) default ‘customersdata.txt’ l
-SELECTION.
taset filename.
c = 0.
‘Delete OK’.

Working with File on Presentation Server

Download Data to PC
Download data from PC
rameters filename like rlgrap-filename
default ‘c:customers.txt’.
ta all_customers like customers occurs 0
with header line.
ART-OF-SELECTION.
elect * from customers into table all_customre

Download Data to PC
CALL FUNCTION ‘DOWNLOAD’
Exporting
filename = filename
Tables
data_tab = all_customers
Exceptions
file_open_error = 1
…
others = 5.

Download Data to PC
Case sy-subrc.
When 1.
Write: ‘Error when file opened’.
When 2.
Write: ‘Error during data transfer’.
…
When 0.
Write: / ‘Data Download Finish’.
Endcase.

Upload Data from PC
ad data to PC
eters filename like rlgrap-filename
ult ‘c:customers.txt’.
all_customers like customers occurs 0 with he
-OF-SELECTION.

Upload Data from PC
CALL FUNCTION ‘UPLOAD’
Exporting
filename = filename
Tables
data_tab = all_customers
Exceptions
file_open_error = 1
…
others = 5.

Upload Data from PC
Case sy-subrc.
When 1.
Write: ‘Error when file opened’.
When 2.
Write: ‘Error during data transfer’.
…
When 0.
Insert customers from table all_customers.
…
Endcase.

Upload/Download Data in Background
Call function ‘WS_DOWNLOAD’
Exporting
filename = filename
...
and
Call function ‘WS_UPLOAD’
Exporting
filename = filename
...

Type Group : SE11

Type Group
ABAP Program

Exercise IV

Exercise III : User Master
usr02-trdat
usr02-bname
adcp-tel_number

Exercise IV : Drill-Down Report