ABAP Select data from SAP table AFAB1_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AFAB1_STR 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 AFAB1_STR. 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 AFAB1_STR 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_AFAB1_STR TYPE STANDARD TABLE OF AFAB1_STR,
      WA_AFAB1_STR TYPE AFAB1_STR,
      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: <AFAB1_STR> TYPE AFAB1_STR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AFAB1_STR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AFAB1_STR
  INTO TABLE IT_AFAB1_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFAB1_STR
*  INTO TABLE @DATA(IT_AFAB1_STR2).
*--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_AFAB1_STR INDEX 1 INTO DATA(WA_AFAB1_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AFAB1_STR ASSIGNING <AFAB1_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFAB1_STR>-MANDT = 1.
<AFAB1_STR>-AFABE = 1.
<AFAB1_STR>-KTOGR = 1.
<AFAB1_STR>-GSBER = 1.
<AFAB1_STR>-KOSTL = 1.

ENDLOOP.

LOOP AT IT_AFAB1_STR INTO WA_AFAB1_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFAB1_STR-CAUFN, sy-vline,
  WA_AFAB1_STR-LSTAR, sy-vline,
  WA_AFAB1_STR-AUFWP, sy-vline,
  WA_AFAB1_STR-AUFWB, sy-vline,
  WA_AFAB1_STR-AUFWZ, sy-vline,
  WA_AFAB1_STR-NAFAP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFAB1_STR 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_AFAB1_STR 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_AFAB1_STR INTO WA_AFAB1_STR.


*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 ALPHA, internal->external for field KTOGR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-KTOGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-KTOGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-CAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-CAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AUFWP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AUFWP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AUFWB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AUFWB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AUFWZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AUFWZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-NAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-NAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-NAFAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-NAFAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-NAFAZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-NAFAZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-SAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-SAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-SAFAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-SAFAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-SAFAZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-SAFAZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AAFAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AAFAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AAFAZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AAFAZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-MAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-MAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-MAFAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-MAFAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-MAFAZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-MAFAZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZINSP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-ZINSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-ZINSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZINSG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-ZINSG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-ZINSG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field ZINSZ
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-ZINSZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-ZINSZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AUFNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AUFNP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AUFNG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AUFNG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_AFAB1_STR-AUFNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFAB1_STR-AUFNZ.
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_AFAB1_STR_STR, 
MANDT TYPE STRING,
AFABE TYPE STRING,
KTOGR TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
CAUFN TYPE STRING,
LSTAR TYPE STRING,
AUFWP TYPE STRING,
AUFWB TYPE STRING,
AUFWZ TYPE STRING,
NAFAP TYPE STRING,
NAFAG TYPE STRING,
NAFAZ TYPE STRING,
SAFAP TYPE STRING,
SAFAG TYPE STRING,
SAFAZ TYPE STRING,
AAFAP TYPE STRING,
AAFAG TYPE STRING,
AAFAZ TYPE STRING,
MAFAP TYPE STRING,
MAFAG TYPE STRING,
MAFAZ TYPE STRING,
ZINSP TYPE STRING,
ZINSG TYPE STRING,
ZINSZ TYPE STRING,
AUFNP TYPE STRING,
AUFNG TYPE STRING,
AUFNZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFAB1_STR_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_AFAB1_STR_STR-MANDT sy-vline 
WA_AFAB1_STR_STR-AFABE sy-vline 
WA_AFAB1_STR_STR-KTOGR sy-vline 
WA_AFAB1_STR_STR-GSBER sy-vline 
WA_AFAB1_STR_STR-KOSTL sy-vline 
WA_AFAB1_STR_STR-CAUFN sy-vline 
WA_AFAB1_STR_STR-LSTAR sy-vline 
WA_AFAB1_STR_STR-AUFWP sy-vline 
WA_AFAB1_STR_STR-AUFWB sy-vline 
WA_AFAB1_STR_STR-AUFWZ sy-vline 
WA_AFAB1_STR_STR-NAFAP sy-vline 
WA_AFAB1_STR_STR-NAFAG sy-vline 
WA_AFAB1_STR_STR-NAFAZ sy-vline 
WA_AFAB1_STR_STR-SAFAP sy-vline 
WA_AFAB1_STR_STR-SAFAG sy-vline 
WA_AFAB1_STR_STR-SAFAZ sy-vline 
WA_AFAB1_STR_STR-AAFAP sy-vline 
WA_AFAB1_STR_STR-AAFAG sy-vline 
WA_AFAB1_STR_STR-AAFAZ sy-vline 
WA_AFAB1_STR_STR-MAFAP sy-vline 
WA_AFAB1_STR_STR-MAFAG sy-vline 
WA_AFAB1_STR_STR-MAFAZ sy-vline 
WA_AFAB1_STR_STR-ZINSP sy-vline 
WA_AFAB1_STR_STR-ZINSG sy-vline 
WA_AFAB1_STR_STR-ZINSZ sy-vline 
WA_AFAB1_STR_STR-AUFNP sy-vline 
WA_AFAB1_STR_STR-AUFNG sy-vline 
WA_AFAB1_STR_STR-AUFNZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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