ABAP Select data from SAP table BIW_ISU_REFVALUE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_ISU_REFVALUE
*  INTO TABLE @DATA(IT_BIW_ISU_REFVALUE2).
*--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_BIW_ISU_REFVALUE INDEX 1 INTO DATA(WA_BIW_ISU_REFVALUE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_ISU_REFVALUE>-AB = 1.
<BIW_ISU_REFVALUE>-ANLAGE = 1.
<BIW_ISU_REFVALUE>-OPERAND = 1.
<BIW_ISU_REFVALUE>-TARIFART = 1.
<BIW_ISU_REFVALUE>-KONDIGR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_ISU_REFVALUE-ABRECH, sy-vline,
  WA_BIW_ISU_REFVALUE-VTYP, sy-vline,
  WA_BIW_ISU_REFVALUE-HZBAUFRM, sy-vline,
  WA_BIW_ISU_REFVALUE-AUFLDSTG, sy-vline,
  WA_BIW_ISU_REFVALUE-BSSTATUS, sy-vline,
  WA_BIW_ISU_REFVALUE-WERT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_ISU_REFVALUE 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_BIW_ISU_REFVALUE 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_BIW_ISU_REFVALUE INTO WA_BIW_ISU_REFVALUE.


*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 ANLAGE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_REFVALUE-ANLAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_REFVALUE-ANLAGE.
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_BIW_ISU_REFVALUE_STR, 
AB TYPE STRING,
ANLAGE TYPE STRING,
OPERAND TYPE STRING,
TARIFART TYPE STRING,
KONDIGR TYPE STRING,
ABRECH TYPE STRING,
VTYP TYPE STRING,
HZBAUFRM TYPE STRING,
AUFLDSTG TYPE STRING,
BSSTATUS TYPE STRING,
WERT1 TYPE STRING,
WERT2 TYPE STRING,
STATANZ TYPE STRING,
ERDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_ISU_REFVALUE_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_BIW_ISU_REFVALUE_STR-AB sy-vline 
WA_BIW_ISU_REFVALUE_STR-ANLAGE sy-vline 
WA_BIW_ISU_REFVALUE_STR-OPERAND sy-vline 
WA_BIW_ISU_REFVALUE_STR-TARIFART sy-vline 
WA_BIW_ISU_REFVALUE_STR-KONDIGR sy-vline 
WA_BIW_ISU_REFVALUE_STR-ABRECH sy-vline 
WA_BIW_ISU_REFVALUE_STR-VTYP sy-vline 
WA_BIW_ISU_REFVALUE_STR-HZBAUFRM sy-vline 
WA_BIW_ISU_REFVALUE_STR-AUFLDSTG sy-vline 
WA_BIW_ISU_REFVALUE_STR-BSSTATUS sy-vline 
WA_BIW_ISU_REFVALUE_STR-WERT1 sy-vline 
WA_BIW_ISU_REFVALUE_STR-WERT2 sy-vline 
WA_BIW_ISU_REFVALUE_STR-STATANZ sy-vline 
WA_BIW_ISU_REFVALUE_STR-ERDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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