ABAP Select data from SAP table RM06L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM06L 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 RM06L. 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 RM06L 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_RM06L TYPE STANDARD TABLE OF RM06L,
      WA_RM06L TYPE RM06L,
      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: <RM06L> TYPE RM06L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM06L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM06L
  INTO TABLE IT_RM06L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM06L
*  INTO TABLE @DATA(IT_RM06L2).
*--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_RM06L INDEX 1 INTO DATA(WA_RM06L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM06L ASSIGNING <RM06L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM06L>-SELK1 = 1.
<RM06L>-SELK2 = 1.
<RM06L>-DT001 = 1.
<RM06L>-HKR01 = 1.
<RM06L>-KTX01 = 1.

ENDLOOP.

LOOP AT IT_RM06L INTO WA_RM06L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM06L-HKR02, sy-vline,
  WA_RM06L-KTX02, sy-vline,
  WA_RM06L-KNOT1, sy-vline,
  WA_RM06L-KNOT2, sy-vline,
  WA_RM06L-GWPR1, sy-vline,
  WA_RM06L-GWPR2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM06L 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_RM06L 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_RM06L INTO WA_RM06L.


*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 BPRM1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RM06L-BPRM1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM06L-BPRM1.
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_RM06L_STR, 
SELK1 TYPE STRING,
SELK2 TYPE STRING,
DT001 TYPE STRING,
HKR01 TYPE STRING,
KTX01 TYPE STRING,
HKR02 TYPE STRING,
KTX02 TYPE STRING,
KNOT1 TYPE STRING,
KNOT2 TYPE STRING,
GWPR1 TYPE STRING,
GWPR2 TYPE STRING,
PROZ1 TYPE STRING,
PROZ2 TYPE STRING,
PROZ3 TYPE STRING,
KNOT3 TYPE STRING,
GWPR3 TYPE STRING,
HKR03 TYPE STRING,
KTX03 TYPE STRING,
OKCODE TYPE STRING,
KRAE1 TYPE STRING,
KRAE2 TYPE STRING,
KRTP1 TYPE STRING,
KRTP2 TYPE STRING,
KRAE3 TYPE STRING,
XFLD TYPE STRING,
SELKZ TYPE STRING,
FORM1 TYPE STRING,
ILIN1 TYPE STRING,
ILIN2 TYPE STRING,
FORM2 TYPE STRING,
LTXKZ TYPE STRING,
KURZTXT TYPE STRING,
POSIT TYPE STRING,
TEXT1 TYPE STRING,
MATKR1 TYPE STRING,
MATKR2 TYPE STRING,
WAER1 TYPE STRING,
PEIN1 TYPE STRING,
BPRM1 TYPE STRING,
DATU1 TYPE STRING,
TKR01 TYPE STRING,
CLINF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM06L_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_RM06L_STR-SELK1 sy-vline 
WA_RM06L_STR-SELK2 sy-vline 
WA_RM06L_STR-DT001 sy-vline 
WA_RM06L_STR-HKR01 sy-vline 
WA_RM06L_STR-KTX01 sy-vline 
WA_RM06L_STR-HKR02 sy-vline 
WA_RM06L_STR-KTX02 sy-vline 
WA_RM06L_STR-KNOT1 sy-vline 
WA_RM06L_STR-KNOT2 sy-vline 
WA_RM06L_STR-GWPR1 sy-vline 
WA_RM06L_STR-GWPR2 sy-vline 
WA_RM06L_STR-PROZ1 sy-vline 
WA_RM06L_STR-PROZ2 sy-vline 
WA_RM06L_STR-PROZ3 sy-vline 
WA_RM06L_STR-KNOT3 sy-vline 
WA_RM06L_STR-GWPR3 sy-vline 
WA_RM06L_STR-HKR03 sy-vline 
WA_RM06L_STR-KTX03 sy-vline 
WA_RM06L_STR-OKCODE sy-vline 
WA_RM06L_STR-KRAE1 sy-vline 
WA_RM06L_STR-KRAE2 sy-vline 
WA_RM06L_STR-KRTP1 sy-vline 
WA_RM06L_STR-KRTP2 sy-vline 
WA_RM06L_STR-KRAE3 sy-vline 
WA_RM06L_STR-XFLD sy-vline 
WA_RM06L_STR-SELKZ sy-vline 
WA_RM06L_STR-FORM1 sy-vline 
WA_RM06L_STR-ILIN1 sy-vline 
WA_RM06L_STR-ILIN2 sy-vline 
WA_RM06L_STR-FORM2 sy-vline 
WA_RM06L_STR-LTXKZ sy-vline 
WA_RM06L_STR-KURZTXT sy-vline 
WA_RM06L_STR-POSIT sy-vline 
WA_RM06L_STR-TEXT1 sy-vline 
WA_RM06L_STR-MATKR1 sy-vline 
WA_RM06L_STR-MATKR2 sy-vline 
WA_RM06L_STR-WAER1 sy-vline 
WA_RM06L_STR-PEIN1 sy-vline 
WA_RM06L_STR-BPRM1 sy-vline 
WA_RM06L_STR-DATU1 sy-vline 
WA_RM06L_STR-TKR01 sy-vline 
WA_RM06L_STR-CLINF sy-vline      INTO ld_text SEPARATED BY SPACE.

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