ABAP Select data from SAP table ROXBS30034 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROXBS30034 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 ROXBS30034. 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 ROXBS30034 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_ROXBS30034 TYPE STANDARD TABLE OF ROXBS30034,
      WA_ROXBS30034 TYPE ROXBS30034,
      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: <ROXBS30034> TYPE ROXBS30034.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROXBS30034.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROXBS30034
  INTO TABLE IT_ROXBS30034.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROXBS30034
*  INTO TABLE @DATA(IT_ROXBS300342).
*--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_ROXBS30034 INDEX 1 INTO DATA(WA_ROXBS300342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROXBS30034 ASSIGNING <ROXBS30034>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROXBS30034>-OBJVERS = 1.
<ROXBS30034>-COUNTRY = 1.
<ROXBS30034>-REGION = 1.
<ROXBS30034>-KUNNR = 1.
<ROXBS30034>-TYPE = 1.

ENDLOOP.

LOOP AT IT_ROXBS30034 INTO WA_ROXBS30034.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROXBS30034-GJAHR, sy-vline,
  WA_ROXBS30034-FIELD, sy-vline,
  WA_ROXBS30034-PERIV, sy-vline,
  WA_ROXBS30034-PERIO, sy-vline,
  WA_ROXBS30034-DMBTR, sy-vline,
  WA_ROXBS30034-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROXBS30034 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_ROXBS30034 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_ROXBS30034 INTO WA_ROXBS30034.


*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 CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROXBS30034-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROXBS30034-ERFME.
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_ROXBS30034_STR, 
OBJVERS TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
KUNNR TYPE STRING,
TYPE TYPE STRING,
GJAHR TYPE STRING,
FIELD TYPE STRING,
PERIV TYPE STRING,
PERIO TYPE STRING,
DMBTR TYPE STRING,
WAERS TYPE STRING,
MGMIN TYPE STRING,
MGMAX TYPE STRING,
ERFME TYPE STRING,
EZDAT TYPE STRING,
ANZHL TYPE STRING,
AUFNR TYPE STRING,
TSTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROXBS30034_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_ROXBS30034_STR-OBJVERS sy-vline 
WA_ROXBS30034_STR-COUNTRY sy-vline 
WA_ROXBS30034_STR-REGION sy-vline 
WA_ROXBS30034_STR-KUNNR sy-vline 
WA_ROXBS30034_STR-TYPE sy-vline 
WA_ROXBS30034_STR-GJAHR sy-vline 
WA_ROXBS30034_STR-FIELD sy-vline 
WA_ROXBS30034_STR-PERIV sy-vline 
WA_ROXBS30034_STR-PERIO sy-vline 
WA_ROXBS30034_STR-DMBTR sy-vline 
WA_ROXBS30034_STR-WAERS sy-vline 
WA_ROXBS30034_STR-MGMIN sy-vline 
WA_ROXBS30034_STR-MGMAX sy-vline 
WA_ROXBS30034_STR-ERFME sy-vline 
WA_ROXBS30034_STR-EZDAT sy-vline 
WA_ROXBS30034_STR-ANZHL sy-vline 
WA_ROXBS30034_STR-AUFNR sy-vline 
WA_ROXBS30034_STR-TSTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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