ABAP Select data from SAP table RM06EU into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM06EU 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 RM06EU. 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 RM06EU 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_RM06EU TYPE STANDARD TABLE OF RM06EU,
      WA_RM06EU TYPE RM06EU,
      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: <RM06EU> TYPE RM06EU.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM06EU.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM06EU
  INTO TABLE IT_RM06EU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM06EU
*  INTO TABLE @DATA(IT_RM06EU2).
*--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_RM06EU INDEX 1 INTO DATA(WA_RM06EU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM06EU ASSIGNING <RM06EU>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM06EU>-MANDT = 1.
<RM06EU>-EBELN = 1.
<RM06EU>-RESWK = 1.
<RM06EU>-LFART = 1.
<RM06EU>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_RM06EU INTO WA_RM06EU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM06EU-INCO1, sy-vline,
  WA_RM06EU-INCO2, sy-vline,
  WA_RM06EU-ADRNR, sy-vline,
  WA_RM06EU-ADDNR, sy-vline,
  WA_RM06EU-INCOV, sy-vline,
  WA_RM06EU-INCO2_L, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM06EU 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_RM06EU 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_RM06EU INTO WA_RM06EU.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM06EU-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM06EU-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM06EU-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM06EU-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM06EU-ADDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM06EU-ADDNR.
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_RM06EU_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
RESWK TYPE STRING,
LFART TYPE STRING,
BUKRS TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
ADRNR TYPE STRING,
ADDNR TYPE STRING,
INCOV TYPE STRING,
INCO2_L TYPE STRING,
INCO3_L TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM06EU_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_RM06EU_STR-MANDT sy-vline 
WA_RM06EU_STR-EBELN sy-vline 
WA_RM06EU_STR-RESWK sy-vline 
WA_RM06EU_STR-LFART sy-vline 
WA_RM06EU_STR-BUKRS sy-vline 
WA_RM06EU_STR-INCO1 sy-vline 
WA_RM06EU_STR-INCO2 sy-vline 
WA_RM06EU_STR-ADRNR sy-vline 
WA_RM06EU_STR-ADDNR sy-vline 
WA_RM06EU_STR-INCOV sy-vline 
WA_RM06EU_STR-INCO2_L sy-vline 
WA_RM06EU_STR-INCO3_L sy-vline      INTO ld_text SEPARATED BY SPACE.

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