ABAP Select data from SAP table WRF_UPDATE_HIEID_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRF_UPDATE_HIEID_ATTR
*  INTO TABLE @DATA(IT_WRF_UPDATE_HIEID_ATTR2).
*--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_WRF_UPDATE_HIEID_ATTR INDEX 1 INTO DATA(WA_WRF_UPDATE_HIEID_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_UPDATE_HIEID_ATTR>-MANDT = 1.
<WRF_UPDATE_HIEID_ATTR>-HIER_ID = 1.
<WRF_UPDATE_HIEID_ATTR>-NODE = 1.
<WRF_UPDATE_HIEID_ATTR>-VKORG = 1.
<WRF_UPDATE_HIEID_ATTR>-VTWEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRF_UPDATE_HIEID_ATTR-STATUS, sy-vline,
  WA_WRF_UPDATE_HIEID_ATTR-BWFLG, sy-vline,
  WA_WRF_UPDATE_HIEID_ATTR-HIERFLG, sy-vline,
  WA_WRF_UPDATE_HIEID_ATTR-MLTPFLG, sy-vline,
  WA_WRF_UPDATE_HIEID_ATTR-DATEFLG, sy-vline,
  WA_WRF_UPDATE_HIEID_ATTR-LAEDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRF_UPDATE_HIEID_ATTR 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_WRF_UPDATE_HIEID_ATTR 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_WRF_UPDATE_HIEID_ATTR INTO WA_WRF_UPDATE_HIEID_ATTR.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_WRF_UPDATE_HIEID_ATTR-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_UPDATE_HIEID_ATTR-SPRAS.
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_WRF_UPDATE_HIEID_ATTR_STR, 
MANDT TYPE STRING,
HIER_ID TYPE STRING,
NODE TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
STATUS TYPE STRING,
BWFLG TYPE STRING,
HIERFLG TYPE STRING,
MLTPFLG TYPE STRING,
DATEFLG TYPE STRING,
LAEDA TYPE STRING,
LTEXT TYPE STRING,
SPRAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRF_UPDATE_HIEID_ATTR_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_WRF_UPDATE_HIEID_ATTR_STR-MANDT sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-HIER_ID sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-NODE sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-VKORG sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-VTWEG sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-STATUS sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-BWFLG sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-HIERFLG sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-MLTPFLG sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-DATEFLG sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-LAEDA sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-LTEXT sy-vline 
WA_WRF_UPDATE_HIEID_ATTR_STR-SPRAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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