ABAP Select data from SAP table RM61E1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM61E1 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 RM61E1. 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 RM61E1 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_RM61E1 TYPE STANDARD TABLE OF RM61E1,
      WA_RM61E1 TYPE RM61E1,
      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: <RM61E1> TYPE RM61E1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM61E1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM61E1
  INTO TABLE IT_RM61E1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM61E1
*  INTO TABLE @DATA(IT_RM61E12).
*--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_RM61E1 INDEX 1 INTO DATA(WA_RM61E12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM61E1 ASSIGNING <RM61E1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM61E1>-MATNR = 1.
<RM61E1>-LGPRO = 1.
<RM61E1>-ENART = 1.
<RM61E1>-SOBKZ = 1.
<RM61E1>-KDAUF = 1.

ENDLOOP.

LOOP AT IT_RM61E1 INTO WA_RM61E1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM61E1-KDPOS, sy-vline,
  WA_RM61E1-LIFNR, sy-vline,
  WA_RM61E1-XCHPF, sy-vline,
  WA_RM61E1-CHARG, sy-vline,
  WA_RM61E1-DISKZ, sy-vline,
  WA_RM61E1-BERKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM61E1 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_RM61E1 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_RM61E1 INTO WA_RM61E1.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RM61E1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61E1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61E1-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61E1-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61E1-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61E1-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RM61E1-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61E1-ERFME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ELIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM61E1-ELIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM61E1-ELIFNR.
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_RM61E1_STR, 
MATNR TYPE STRING,
LGPRO TYPE STRING,
ENART TYPE STRING,
SOBKZ TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
LIFNR TYPE STRING,
XCHPF TYPE STRING,
CHARG TYPE STRING,
DISKZ TYPE STRING,
BERKZ TYPE STRING,
KANBN TYPE STRING,
NBDMG TYPE STRING,
MISSQ TYPE STRING,
ERFME TYPE STRING,
MAKTX TYPE STRING,
ELORT TYPE STRING,
ESOBKZ TYPE STRING,
ELIFNR TYPE STRING,
EQUAN TYPE STRING,
RMISS TYPE STRING,
EXCEP TYPE STRING,
MARK TYPE STRING,
DETAIL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM61E1_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_RM61E1_STR-MATNR sy-vline 
WA_RM61E1_STR-LGPRO sy-vline 
WA_RM61E1_STR-ENART sy-vline 
WA_RM61E1_STR-SOBKZ sy-vline 
WA_RM61E1_STR-KDAUF sy-vline 
WA_RM61E1_STR-KDPOS sy-vline 
WA_RM61E1_STR-LIFNR sy-vline 
WA_RM61E1_STR-XCHPF sy-vline 
WA_RM61E1_STR-CHARG sy-vline 
WA_RM61E1_STR-DISKZ sy-vline 
WA_RM61E1_STR-BERKZ sy-vline 
WA_RM61E1_STR-KANBN sy-vline 
WA_RM61E1_STR-NBDMG sy-vline 
WA_RM61E1_STR-MISSQ sy-vline 
WA_RM61E1_STR-ERFME sy-vline 
WA_RM61E1_STR-MAKTX sy-vline 
WA_RM61E1_STR-ELORT sy-vline 
WA_RM61E1_STR-ESOBKZ sy-vline 
WA_RM61E1_STR-ELIFNR sy-vline 
WA_RM61E1_STR-EQUAN sy-vline 
WA_RM61E1_STR-RMISS sy-vline 
WA_RM61E1_STR-EXCEP sy-vline 
WA_RM61E1_STR-MARK sy-vline 
WA_RM61E1_STR-DETAIL sy-vline      INTO ld_text SEPARATED BY SPACE.

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