ABAP Select data from SAP table RM06P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM06P 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 RM06P. 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 RM06P 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_RM06P TYPE STANDARD TABLE OF RM06P,
      WA_RM06P TYPE RM06P,
      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: <RM06P> TYPE RM06P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM06P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM06P
  INTO TABLE IT_RM06P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM06P
*  INTO TABLE @DATA(IT_RM06P2).
*--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_RM06P INDEX 1 INTO DATA(WA_RM06P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM06P ASSIGNING <RM06P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM06P>-LFDAT = 1.
<RM06P>-PRITX = 1.
<RM06P>-PHTXT = 1.
<RM06P>-PRMG1 = 1.
<RM06P>-PRMG2 = 1.

ENDLOOP.

LOOP AT IT_RM06P INTO WA_RM06P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM06P-PRMG3, sy-vline,
  WA_RM06P-PRPEI, sy-vline,
  WA_RM06P-DATUM, sy-vline,
  WA_RM06P-PHTX2, sy-vline,
  WA_RM06P-NETWRV, sy-vline,
  WA_RM06P-PRMG4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM06P 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_RM06P 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_RM06P INTO WA_RM06P.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RM06P_STR, 
LFDAT TYPE STRING,
PRITX TYPE STRING,
PHTXT TYPE STRING,
PRMG1 TYPE STRING,
PRMG2 TYPE STRING,
PRMG3 TYPE STRING,
PRPEI TYPE STRING,
DATUM TYPE STRING,
PHTX2 TYPE STRING,
NETWRV TYPE STRING,
PRMG4 TYPE STRING,
PRMG5 TYPE STRING,
PRMG6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM06P_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_RM06P_STR-LFDAT sy-vline 
WA_RM06P_STR-PRITX sy-vline 
WA_RM06P_STR-PHTXT sy-vline 
WA_RM06P_STR-PRMG1 sy-vline 
WA_RM06P_STR-PRMG2 sy-vline 
WA_RM06P_STR-PRMG3 sy-vline 
WA_RM06P_STR-PRPEI sy-vline 
WA_RM06P_STR-DATUM sy-vline 
WA_RM06P_STR-PHTX2 sy-vline 
WA_RM06P_STR-NETWRV sy-vline 
WA_RM06P_STR-PRMG4 sy-vline 
WA_RM06P_STR-PRMG5 sy-vline 
WA_RM06P_STR-PRMG6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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