ABAP Select data from SAP table ABBT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ABBT 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 ABBT. 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 ABBT 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_ABBT TYPE STANDARD TABLE OF ABBT,
      WA_ABBT TYPE ABBT,
      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: <ABBT> TYPE ABBT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ABBT
*  INTO TABLE @DATA(IT_ABBT2).
*--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_ABBT INDEX 1 INTO DATA(WA_ABBT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ABBT>-GSMNG = 1.
<ABBT>-GASMG = 1.
<ABBT>-MEINS = 1.
<ABBT>-PSTTR = 1.
<ABBT>-PSTTI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ABBT-PEDTR, sy-vline,
  WA_ABBT-PEDTI, sy-vline,
  WA_ABBT-AUFNR, sy-vline,
  WA_ABBT-TERKZ, sy-vline,
  WA_ABBT-TPAUF, sy-vline,
  WA_ABBT-ABMNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ABBT 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_ABBT 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_ABBT INTO WA_ABBT.


*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 CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ABBT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ABBT-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ABBT-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ABBT-AUFNR.
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_ABBT_STR, 
GSMNG TYPE STRING,
GASMG TYPE STRING,
MEINS TYPE STRING,
PSTTR TYPE STRING,
PSTTI TYPE STRING,
PEDTR TYPE STRING,
PEDTI TYPE STRING,
AUFNR TYPE STRING,
TERKZ TYPE STRING,
TPAUF TYPE STRING,
ABMNG TYPE STRING,
GENER TYPE STRING,
CHANG TYPE STRING,
MARK TYPE STRING,
BAMNG TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
GENKZ TYPE STRING,
DELKZ TYPE STRING,
VERID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ABBT_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_ABBT_STR-GSMNG sy-vline 
WA_ABBT_STR-GASMG sy-vline 
WA_ABBT_STR-MEINS sy-vline 
WA_ABBT_STR-PSTTR sy-vline 
WA_ABBT_STR-PSTTI sy-vline 
WA_ABBT_STR-PEDTR sy-vline 
WA_ABBT_STR-PEDTI sy-vline 
WA_ABBT_STR-AUFNR sy-vline 
WA_ABBT_STR-TERKZ sy-vline 
WA_ABBT_STR-TPAUF sy-vline 
WA_ABBT_STR-ABMNG sy-vline 
WA_ABBT_STR-GENER sy-vline 
WA_ABBT_STR-CHANG sy-vline 
WA_ABBT_STR-MARK sy-vline 
WA_ABBT_STR-BAMNG sy-vline 
WA_ABBT_STR-UMREZ sy-vline 
WA_ABBT_STR-UMREN sy-vline 
WA_ABBT_STR-GENKZ sy-vline 
WA_ABBT_STR-DELKZ sy-vline 
WA_ABBT_STR-VERID sy-vline      INTO ld_text SEPARATED BY SPACE.

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