ABAP Select data from SAP table WOD5_HEADER_STY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WOD5_HEADER_STY 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 WOD5_HEADER_STY. 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 WOD5_HEADER_STY 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_WOD5_HEADER_STY TYPE STANDARD TABLE OF WOD5_HEADER_STY,
      WA_WOD5_HEADER_STY TYPE WOD5_HEADER_STY,
      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: <WOD5_HEADER_STY> TYPE WOD5_HEADER_STY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WOD5_HEADER_STY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WOD5_HEADER_STY
  INTO TABLE IT_WOD5_HEADER_STY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WOD5_HEADER_STY
*  INTO TABLE @DATA(IT_WOD5_HEADER_STY2).
*--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_WOD5_HEADER_STY INDEX 1 INTO DATA(WA_WOD5_HEADER_STY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WOD5_HEADER_STY ASSIGNING <WOD5_HEADER_STY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WOD5_HEADER_STY>-WERKS = 1.
<WOD5_HEADER_STY>-BOHANDLE = 1.
<WOD5_HEADER_STY>-LIFNR = 1.
<WOD5_HEADER_STY>-EKORG = 1.
<WOD5_HEADER_STY>-BOPNR = 1.

ENDLOOP.

LOOP AT IT_WOD5_HEADER_STY INTO WA_WOD5_HEADER_STY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WOD5_HEADER_STY-WLBCREDAT, sy-vline,
  WA_WOD5_HEADER_STY-WLBCRETIM, sy-vline,
  WA_WOD5_HEADER_STY-SBSUBMI, sy-vline,
  WA_WOD5_HEADER_STY-BEDAT, sy-vline,
  WA_WOD5_HEADER_STY-EINDT, sy-vline,
  WA_WOD5_HEADER_STY-WKCHECK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WOD5_HEADER_STY 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_WOD5_HEADER_STY 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_WOD5_HEADER_STY INTO WA_WOD5_HEADER_STY.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WOD5_HEADER_STY-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WOD5_HEADER_STY-LIFNR.
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_WOD5_HEADER_STY_STR, 
WERKS TYPE STRING,
BOHANDLE TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
BOPNR TYPE STRING,
WLBCREDAT TYPE STRING,
WLBCRETIM TYPE STRING,
SBSUBMI TYPE STRING,
BEDAT TYPE STRING,
EINDT TYPE STRING,
WKCHECK TYPE STRING,
NURSIMU TYPE STRING,
WLBLTSSPLITT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WOD5_HEADER_STY_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_WOD5_HEADER_STY_STR-WERKS sy-vline 
WA_WOD5_HEADER_STY_STR-BOHANDLE sy-vline 
WA_WOD5_HEADER_STY_STR-LIFNR sy-vline 
WA_WOD5_HEADER_STY_STR-EKORG sy-vline 
WA_WOD5_HEADER_STY_STR-BOPNR sy-vline 
WA_WOD5_HEADER_STY_STR-WLBCREDAT sy-vline 
WA_WOD5_HEADER_STY_STR-WLBCRETIM sy-vline 
WA_WOD5_HEADER_STY_STR-SBSUBMI sy-vline 
WA_WOD5_HEADER_STY_STR-BEDAT sy-vline 
WA_WOD5_HEADER_STY_STR-EINDT sy-vline 
WA_WOD5_HEADER_STY_STR-WKCHECK sy-vline 
WA_WOD5_HEADER_STY_STR-NURSIMU sy-vline 
WA_WOD5_HEADER_STY_STR-WLBLTSSPLITT sy-vline      INTO ld_text SEPARATED BY SPACE.

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