ABAP Select data from SAP table HBSFLS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HBSFLS
*  INTO TABLE @DATA(IT_HBSFLS2).
*--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_HBSFLS INDEX 1 INTO DATA(WA_HBSFLS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HBSFLS>-MANDT = 1.
<HBSFLS>-BUKRS = 1.
<HBSFLS>-SWENR = 1.
<HBSFLS>-SGENR = 1.
<HBSFLS>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HBSFLS-ATINN, sy-vline,
  WA_HBSFLS-ATZHL, sy-vline,
  WA_HBSFLS-ADZHL, sy-vline,
  WA_HBSFLS-REQU, sy-vline,
  WA_HBSFLS-WARN, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_HBSFLS 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_HBSFLS 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_HBSFLS INTO WA_HBSFLS.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_HBSFLS-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HBSFLS-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_HBSFLS-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HBSFLS-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_HBSFLS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HBSFLS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_HBSFLS-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HBSFLS-ATINN.
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_HBSFLS_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGENR TYPE STRING,
MATNR TYPE STRING,
ATINN TYPE STRING,
ATZHL TYPE STRING,
ADZHL TYPE STRING,
REQU TYPE STRING,
WARN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HBSFLS_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_HBSFLS_STR-MANDT sy-vline 
WA_HBSFLS_STR-BUKRS sy-vline 
WA_HBSFLS_STR-SWENR sy-vline 
WA_HBSFLS_STR-SGENR sy-vline 
WA_HBSFLS_STR-MATNR sy-vline 
WA_HBSFLS_STR-ATINN sy-vline 
WA_HBSFLS_STR-ATZHL sy-vline 
WA_HBSFLS_STR-ADZHL sy-vline 
WA_HBSFLS_STR-REQU sy-vline 
WA_HBSFLS_STR-WARN sy-vline      INTO ld_text SEPARATED BY SPACE.

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