1. ABAP Programming Overview

4. SAP System : 3 Tier Client/Server DB Server SAP Application Server SAP GUI Presentation Server SAP GUI SAP GUI

5. SAP SYSTEM (3 Tier Architecture) Presentation Layer (Windows based) Application Layer (Windows Server/UNIX) Database Server Database Layer (Windows Server/UNIX) M SAP Instance Oracle Informix DB2 MS SQL Server MaxDB G Dispatcher Request Queue D D B V S E SAP Buffer (Shared Mem) SAP GUI SAP GUI

6. Dialog Processing

7. SAP System : Dialog Processing Database Server Application Server Dispatcher Request Queue D D D D … SAP Buffer Program Table … 1 3 4 5 6 8 9 10 Report zpsm1. Tables customers. Select single * from customers where id = 1. Write: / customers-name. Execute ABAP statement Check Program in Program Buffer 7 Load&Gen Program SQL Request Send List Generate Screen(List) Send Request Request List 2 Search for free WP Store request to queue Send request to WP SAP GUI

8. Dialog Work Process Architecture TaskHandler DYNPRO Processor ABAP Processor Local Memory Memory Space DB Interface List buffer Database Server Dialog Work Process Result Set Memory

9. ABAP Programming Overview

10. ABAP Overview DATA ... WRITE ... IF ... MOVE … WHILE... *Comment... SEARCH ... SELECT ... LOOP AT ... DO ...

16. Types of ABAP Report 1. Report Listing 2. Drill-down Report 3. Control-break Report 4. ALV Report 1 3 4

18. Dialog Program : Transaction

19. ABAP Programming

20. How to create ABAP program Transaction Code : SE38

21. Transaction : SE38

22. Program Attribute

23. ABAP Editor

25. Literal DATA tmp TYPE I. WRITE ‘Hello World’. WRITE ’10’. MOVE 9 TO tmp. Text Literal Numeric Literal Text Literal

30. Comments * This is full line comment WRITE ‘Hello World’. “ Write data (partial line comment) WRITE ‘Test’.

32. Data Objects in ABAP

34. Variable

36. Predefined ABAP Data Types Type Description Initial Value C D F I N P T X String xstring Character Date Floating Point Integer Numeric Text Packed Decimal Time Hexadecimal Variable-length Variable-length Hexadecimal Space ‘ 00000000’ 0.0 0 ‘ 0’ 0 ‘ 000000’ ’ 00’ Space Blank string Length 1 – 65535 8 characters 8 bytes 4 bytes 1 – 65535 1 – 16 bytes 6 characters 1 – 65535 Variable Variable

37. Defining Variable with DATA Statement * Syntax DATA var[( length )] [Type type ] [Decimals number ]. DATA var LIKE Table-Field [VALUE initial value ].

38. Defining Variable with DATA Statement * Data Declaration DATA: tmp(10) TYPE C, tmp1 TYPE I, tmp2(8) TYPE P DECIMALS 2 VALUE ‘1.50’. DATA: tmp3(5) TYPE N, tmp4.

39. Defining Variable with DATA Statement * Data Declaration DATA customerno LIKE customers-id. DATA matnr LIKE mara-matnr . DATA customerno TYPE customers-id. DATA matnr TYPE mara-matnr.

40. ABAP Predefined Data Types ABAP Predefined Data Types Complete Types (I,F,D,T,STRING and XSTRING) Incomplete Types (C,N,P and X)

43. ABAP Error System Runtime Error User Runtime Error Time Exceed (10 Minutes) Cannot Allocate Space ABAP Error Syntax Error Runtime Error

44. User Runtime Error DATA result TYPE i. result = 10 / 0.

45. System Runtime Error : Space Allocation

46. System Runtime Error : Time Exceed

48. Value Assignment * Value assignment DATA: name1(30), first_num TYPE I , next_num TYPE I. MOVE ‘XXXX’ TO name1. MOVE 5 TO first_num. COMPUTE next_num = first_num + 5. name1 = ‘SAP’. ADD 1 TO next_num.

49. Value Assignment * Value assignment DATA: tmp1 TYPE i , tmp2 TYPE i . tmp1 = tmp2 = 10.

50. ABAP Practice ต้องการให้สร้างตัวแปรชื่อ firstname และ lastname โดยให้ค่าชื่อของคุณกับ ตัวแปร firstname และนามสกุลของคุณให้กับตัวแปร lastname พร้อมทั้งแสดง ค่าข้อมูล firstname กับ lastname ออกมาที่หน้าจอ

51. Structure

56. ABAP Practice ต้องการให้สร้าง Structure ชื่อ myname โดยมีฟิลด์ firstname และ lastname โดยให้ค่าชื่อของคุณกับฟิลด์ firstname และนามสกุลของคุณให้กับฟิลด์ lastname พร้อมทั้งแสดงค่าข้อมูลของ Structure ที่ชื่อ myname ทั้งฟิลด์ firstname และ lastname ออกมาที่หน้าจอ

57. Constants

61. ABAP System Fields : Structure SYST (SE11)

62. DATE * Fixed Length 8 * Include Representation ‘ YYYYMMDD ’ DATA today TYPE D. today = sy-datum. WRITE today. today = ‘19991231’. WRITE today.

64. MOVE Statement DATA wa LIKE customers . DATA vender LIKE customers. wa -id = ‘1234’. wa -name = ‘Test#1’. MOVE wa TO vender. WRITE: wa -id, vender-name. “ vender = wa.

65. MOVE-CORRESPONDING Statement DATA: begin of wa1, f1,f2,f4, end of wa1 . DATA: begin of wa2, f2,f1,f3, end of wa2 . … MOVE -CORRESPONDING wa1 TO wa2 . WRITE: wa1-f1 , wa2-f1 .

66. Field-symbols

72. ABAP Practice