ABAP Select data from SAP table KGALRFC_T811F into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KGALRFC_T811F 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 KGALRFC_T811F. 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 KGALRFC_T811F 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_KGALRFC_T811F TYPE STANDARD TABLE OF KGALRFC_T811F,
      WA_KGALRFC_T811F TYPE KGALRFC_T811F,
      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: <KGALRFC_T811F> TYPE KGALRFC_T811F.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KGALRFC_T811F.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KGALRFC_T811F
  INTO TABLE IT_KGALRFC_T811F.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KGALRFC_T811F
*  INTO TABLE @DATA(IT_KGALRFC_T811F2).
*--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_KGALRFC_T811F INDEX 1 INTO DATA(WA_KGALRFC_T811F2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KGALRFC_T811F ASSIGNING <KGALRFC_T811F>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KGALRFC_T811F>-SEGMENT_NAME = 1.
<KGALRFC_T811F>-SENDER_RECE_FLAG = 1.
<KGALRFC_T811F>-OBJECT1 = 1.
<KGALRFC_T811F>-OBJECT2 = 1.
<KGALRFC_T811F>-OBJECT3 = 1.

ENDLOOP.

LOOP AT IT_KGALRFC_T811F INTO WA_KGALRFC_T811F.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KGALRFC_T811F-OBJECT4, sy-vline,
  WA_KGALRFC_T811F-OBJECT5, sy-vline,
  WA_KGALRFC_T811F-OBJECT6, sy-vline,
  WA_KGALRFC_T811F-OBJECT7, sy-vline,
  WA_KGALRFC_T811F-OBJECT8, sy-vline,
  WA_KGALRFC_T811F-OBJECT9, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KGALRFC_T811F 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_KGALRFC_T811F 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_KGALRFC_T811F INTO WA_KGALRFC_T811F.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_KGALRFC_T811F_STR, 
SEGMENT_NAME TYPE STRING,
SENDER_RECE_FLAG TYPE STRING,
OBJECT1 TYPE STRING,
OBJECT2 TYPE STRING,
OBJECT3 TYPE STRING,
OBJECT4 TYPE STRING,
OBJECT5 TYPE STRING,
OBJECT6 TYPE STRING,
OBJECT7 TYPE STRING,
OBJECT8 TYPE STRING,
OBJECT9 TYPE STRING,
OBJECT10 TYPE STRING,
VALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KGALRFC_T811F_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_KGALRFC_T811F_STR-SEGMENT_NAME sy-vline 
WA_KGALRFC_T811F_STR-SENDER_RECE_FLAG sy-vline 
WA_KGALRFC_T811F_STR-OBJECT1 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT2 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT3 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT4 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT5 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT6 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT7 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT8 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT9 sy-vline 
WA_KGALRFC_T811F_STR-OBJECT10 sy-vline 
WA_KGALRFC_T811F_STR-VALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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