ABAP Select data from SAP table RM61O into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM61O 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 RM61O. 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 RM61O 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_RM61O TYPE STANDARD TABLE OF RM61O,
      WA_RM61O TYPE RM61O,
      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: <RM61O> TYPE RM61O.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM61O.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM61O
  INTO TABLE IT_RM61O.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM61O
*  INTO TABLE @DATA(IT_RM61O2).
*--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_RM61O INDEX 1 INTO DATA(WA_RM61O2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM61O ASSIGNING <RM61O>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM61O>-ATPLC = 1.
<RM61O>-AUFNR = 1.
<RM61O>-AUFPS = 1.
<RM61O>-AUFSL = 1.
<RM61O>-BANFN = 1.

ENDLOOP.

LOOP AT IT_RM61O INTO WA_RM61O.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM61O-BANSL, sy-vline,
  WA_RM61O-BNFPO, sy-vline,
  WA_RM61O-BSTNR, sy-vline,
  WA_RM61O-BSTPO, sy-vline,
  WA_RM61O-BSTSL, sy-vline,
  WA_RM61O-DELNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM61O 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_RM61O 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_RM61O INTO WA_RM61O.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BSTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-BSTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-BSTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EVRTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-EVRTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-EVRTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NETPL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-NETPL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-NETPL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-PLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-PLNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-PSPEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KONPD, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_RM61O-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61O-PSPID.
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_RM61O_STR, 
ATPLC TYPE STRING,
AUFNR TYPE STRING,
AUFPS TYPE STRING,
AUFSL TYPE STRING,
BANFN TYPE STRING,
BANSL TYPE STRING,
BNFPO TYPE STRING,
BSTNR TYPE STRING,
BSTPO TYPE STRING,
BSTSL TYPE STRING,
DELNR TYPE STRING,
DELPS TYPE STRING,
DELET TYPE STRING,
EEIND TYPE STRING,
EVRTN TYPE STRING,
EVRTP TYPE STRING,
EXCESSQUAN TYPE STRING,
FCODE TYPE STRING,
INPUTQUAN TYPE STRING,
KDASL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
LGORT TYPE STRING,
LIFSL TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
NETSL TYPE STRING,
NETPL TYPE STRING,
PAGES TYPE STRING,
PAGE1 TYPE STRING,
PLNUM TYPE STRING,
PLNSL TYPE STRING,
PROSL TYPE STRING,
PSHIR TYPE STRING,
PSPEL TYPE STRING,
PSPID TYPE STRING,
PSPSL TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RESLC TYPE STRING,
SSTNO TYPE STRING,
SSYES TYPE STRING,
TRMLC TYPE STRING,
WERKS TYPE STRING,
WRKTX TYPE STRING,
PROFID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM61O_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_RM61O_STR-ATPLC sy-vline 
WA_RM61O_STR-AUFNR sy-vline 
WA_RM61O_STR-AUFPS sy-vline 
WA_RM61O_STR-AUFSL sy-vline 
WA_RM61O_STR-BANFN sy-vline 
WA_RM61O_STR-BANSL sy-vline 
WA_RM61O_STR-BNFPO sy-vline 
WA_RM61O_STR-BSTNR sy-vline 
WA_RM61O_STR-BSTPO sy-vline 
WA_RM61O_STR-BSTSL sy-vline 
WA_RM61O_STR-DELNR sy-vline 
WA_RM61O_STR-DELPS sy-vline 
WA_RM61O_STR-DELET sy-vline 
WA_RM61O_STR-EEIND sy-vline 
WA_RM61O_STR-EVRTN sy-vline 
WA_RM61O_STR-EVRTP sy-vline 
WA_RM61O_STR-EXCESSQUAN sy-vline 
WA_RM61O_STR-FCODE sy-vline 
WA_RM61O_STR-INPUTQUAN sy-vline 
WA_RM61O_STR-KDASL sy-vline 
WA_RM61O_STR-KDAUF sy-vline 
WA_RM61O_STR-KDPOS sy-vline 
WA_RM61O_STR-LGORT sy-vline 
WA_RM61O_STR-LIFSL sy-vline 
WA_RM61O_STR-MATNR sy-vline 
WA_RM61O_STR-MAKTX sy-vline 
WA_RM61O_STR-NETSL sy-vline 
WA_RM61O_STR-NETPL sy-vline 
WA_RM61O_STR-PAGES sy-vline 
WA_RM61O_STR-PAGE1 sy-vline 
WA_RM61O_STR-PLNUM sy-vline 
WA_RM61O_STR-PLNSL sy-vline 
WA_RM61O_STR-PROSL sy-vline 
WA_RM61O_STR-PSHIR sy-vline 
WA_RM61O_STR-PSPEL sy-vline 
WA_RM61O_STR-PSPID sy-vline 
WA_RM61O_STR-PSPSL sy-vline 
WA_RM61O_STR-RSNUM sy-vline 
WA_RM61O_STR-RSPOS sy-vline 
WA_RM61O_STR-RESLC sy-vline 
WA_RM61O_STR-SSTNO sy-vline 
WA_RM61O_STR-SSYES sy-vline 
WA_RM61O_STR-TRMLC sy-vline 
WA_RM61O_STR-WERKS sy-vline 
WA_RM61O_STR-WRKTX sy-vline 
WA_RM61O_STR-PROFID sy-vline      INTO ld_text SEPARATED BY SPACE.

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