ABAP Select data from SAP table PC2_AU03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2_AU03 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PC2_AU03. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PC2_AU03 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PC2_AU03 TYPE STANDARD TABLE OF PC2_AU03,
      WA_PC2_AU03 TYPE PC2_AU03,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PC2_AU03> TYPE PC2_AU03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2_AU03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2_AU03
  INTO TABLE IT_PC2_AU03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2_AU03
*  INTO TABLE @DATA(IT_PC2_AU032).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PC2_AU03 INDEX 1 INTO DATA(WA_PC2_AU032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2_AU03 ASSIGNING <PC2_AU03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2_AU03>-PABRJ = 1.
<PC2_AU03>-PABRP = 1.
<PC2_AU03>-LGART = 1.
<PC2_AU03>-APZNR = 1.
<PC2_AU03>-BETRG = 1.

ENDLOOP.

LOOP AT IT_PC2_AU03 INTO WA_PC2_AU03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2_AU03-HDBEG, sy-vline,
  WA_PC2_AU03-HDEND, sy-vline,
  WA_PC2_AU03-SAIND, sy-vline,
  WA_PC2_AU03-SSOLL, sy-vline,
  WA_PC2_AU03-FCODE, sy-vline,
  WA_PC2_AU03-CONTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2_AU03 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PC2_AU03 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PC2_AU03 INTO WA_PC2_AU03.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit GJAHR, internal->external for field PABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PC2_AU03-PABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC2_AU03-PABRJ.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PC2_AU03_STR, 
PABRJ TYPE STRING,
PABRP TYPE STRING,
LGART TYPE STRING,
APZNR TYPE STRING,
BETRG TYPE STRING,
HDBEG TYPE STRING,
HDEND TYPE STRING,
SAIND TYPE STRING,
SSOLL TYPE STRING,
FCODE TYPE STRING,
CONTR TYPE STRING,
CS551 TYPE STRING,
CS542 TYPE STRING,
SFTID TYPE STRING,
LWOPB TYPE STRING,
LWOPE TYPE STRING,
AWART TYPE STRING,
COSUP TYPE STRING,
ADSUP TYPE STRING,
INSUP TYPE STRING,
FISUP TYPE STRING,
PRZNT TYPE STRING,
RATDT TYPE STRING,
SUBEG TYPE STRING,
SUEND TYPE STRING,
SCBAS TYPE STRING,
SCALL TYPE STRING,
SCPEN TYPE STRING,
SCHDA TYPE STRING,
JONID TYPE STRING,
NOTSL TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
UNHDA TYPE STRING,
TRHDA TYPE STRING,
BENHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2_AU03_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PC2_AU03_STR-PABRJ sy-vline 
WA_PC2_AU03_STR-PABRP sy-vline 
WA_PC2_AU03_STR-LGART sy-vline 
WA_PC2_AU03_STR-APZNR sy-vline 
WA_PC2_AU03_STR-BETRG sy-vline 
WA_PC2_AU03_STR-HDBEG sy-vline 
WA_PC2_AU03_STR-HDEND sy-vline 
WA_PC2_AU03_STR-SAIND sy-vline 
WA_PC2_AU03_STR-SSOLL sy-vline 
WA_PC2_AU03_STR-FCODE sy-vline 
WA_PC2_AU03_STR-CONTR sy-vline 
WA_PC2_AU03_STR-CS551 sy-vline 
WA_PC2_AU03_STR-CS542 sy-vline 
WA_PC2_AU03_STR-SFTID sy-vline 
WA_PC2_AU03_STR-LWOPB sy-vline 
WA_PC2_AU03_STR-LWOPE sy-vline 
WA_PC2_AU03_STR-AWART sy-vline 
WA_PC2_AU03_STR-COSUP sy-vline 
WA_PC2_AU03_STR-ADSUP sy-vline 
WA_PC2_AU03_STR-INSUP sy-vline 
WA_PC2_AU03_STR-FISUP sy-vline 
WA_PC2_AU03_STR-PRZNT sy-vline 
WA_PC2_AU03_STR-RATDT sy-vline 
WA_PC2_AU03_STR-SUBEG sy-vline 
WA_PC2_AU03_STR-SUEND sy-vline 
WA_PC2_AU03_STR-SCBAS sy-vline 
WA_PC2_AU03_STR-SCALL sy-vline 
WA_PC2_AU03_STR-SCPEN sy-vline 
WA_PC2_AU03_STR-SCHDA sy-vline 
WA_PC2_AU03_STR-JONID sy-vline 
WA_PC2_AU03_STR-NOTSL sy-vline 
WA_PC2_AU03_STR-BEGDA sy-vline 
WA_PC2_AU03_STR-ENDDA sy-vline 
WA_PC2_AU03_STR-UNHDA sy-vline 
WA_PC2_AU03_STR-TRHDA sy-vline 
WA_PC2_AU03_STR-BENHR sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.