ABAP Select data from SAP table RM61I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM61I 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 RM61I. 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 RM61I 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_RM61I TYPE STANDARD TABLE OF RM61I,
      WA_RM61I TYPE RM61I,
      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: <RM61I> TYPE RM61I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM61I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM61I
  INTO TABLE IT_RM61I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM61I
*  INTO TABLE @DATA(IT_RM61I2).
*--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_RM61I INDEX 1 INTO DATA(WA_RM61I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM61I ASSIGNING <RM61I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM61I>-CALHZ = 1.
<RM61I>-DATUB = 1.
<RM61I>-DATUB_NEW = 1.
<RM61I>-DATUV = 1.
<RM61I>-DATUV_NEW = 1.

ENDLOOP.

LOOP AT IT_RM61I INTO WA_RM61I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM61I-DYNUM, sy-vline,
  WA_RM61I-ERROR_TEXT, sy-vline,
  WA_RM61I-FCODE, sy-vline,
  WA_RM61I-FDINT, sy-vline,
  WA_RM61I-FDLST, sy-vline,
  WA_RM61I-FDNXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM61I 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_RM61I 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_RM61I INTO WA_RM61I.


*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 GJAHR, internal->external for field PPYER
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RM61I-PPYER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61I-PPYER.
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_RM61I_STR, 
CALHZ TYPE STRING,
DATUB TYPE STRING,
DATUB_NEW TYPE STRING,
DATUV TYPE STRING,
DATUV_NEW TYPE STRING,
DYNUM TYPE STRING,
ERROR_TEXT TYPE STRING,
FCODE TYPE STRING,
FDINT TYPE STRING,
FDLST TYPE STRING,
FDNXT TYPE STRING,
FDYNO TYPE STRING,
FDYIG TYPE STRING,
MANDT TYPE STRING,
MRPPP TYPE STRING,
MRPPS TYPE STRING,
MRPPS_SEL TYPE STRING,
MRPPS_TEXT TYPE STRING,
PAGEC TYPE STRING,
PAGE1 TYPE STRING,
PPBIS TYPE STRING,
PPDAT TYPE STRING,
PPERI TYPE STRING,
PPFIX TYPE STRING,
PPTXT TYPE STRING,
PPVON TYPE STRING,
PPYER TYPE STRING,
RESERVE TYPE STRING,
SELKZ TYPE STRING,
SUFIX TYPE STRING,
WERKS TYPE STRING,
WRKTX TYPE STRING,
WKDAY TYPE STRING,
WKDAY_TEXT TYPE STRING,
WKNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM61I_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_RM61I_STR-CALHZ sy-vline 
WA_RM61I_STR-DATUB sy-vline 
WA_RM61I_STR-DATUB_NEW sy-vline 
WA_RM61I_STR-DATUV sy-vline 
WA_RM61I_STR-DATUV_NEW sy-vline 
WA_RM61I_STR-DYNUM sy-vline 
WA_RM61I_STR-ERROR_TEXT sy-vline 
WA_RM61I_STR-FCODE sy-vline 
WA_RM61I_STR-FDINT sy-vline 
WA_RM61I_STR-FDLST sy-vline 
WA_RM61I_STR-FDNXT sy-vline 
WA_RM61I_STR-FDYNO sy-vline 
WA_RM61I_STR-FDYIG sy-vline 
WA_RM61I_STR-MANDT sy-vline 
WA_RM61I_STR-MRPPP sy-vline 
WA_RM61I_STR-MRPPS sy-vline 
WA_RM61I_STR-MRPPS_SEL sy-vline 
WA_RM61I_STR-MRPPS_TEXT sy-vline 
WA_RM61I_STR-PAGEC sy-vline 
WA_RM61I_STR-PAGE1 sy-vline 
WA_RM61I_STR-PPBIS sy-vline 
WA_RM61I_STR-PPDAT sy-vline 
WA_RM61I_STR-PPERI sy-vline 
WA_RM61I_STR-PPFIX sy-vline 
WA_RM61I_STR-PPTXT sy-vline 
WA_RM61I_STR-PPVON sy-vline 
WA_RM61I_STR-PPYER sy-vline 
WA_RM61I_STR-RESERVE sy-vline 
WA_RM61I_STR-SELKZ sy-vline 
WA_RM61I_STR-SUFIX sy-vline 
WA_RM61I_STR-WERKS sy-vline 
WA_RM61I_STR-WRKTX sy-vline 
WA_RM61I_STR-WKDAY sy-vline 
WA_RM61I_STR-WKDAY_TEXT sy-vline 
WA_RM61I_STR-WKNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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