ABAP Select data from SAP table P2RM_MFA into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RM_MFA 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 P2RM_MFA. 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 P2RM_MFA 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_P2RM_MFA TYPE STANDARD TABLE OF P2RM_MFA,
      WA_P2RM_MFA TYPE P2RM_MFA,
      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: <P2RM_MFA> TYPE P2RM_MFA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RM_MFA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RM_MFA
  INTO TABLE IT_P2RM_MFA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RM_MFA
*  INTO TABLE @DATA(IT_P2RM_MFA2).
*--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_P2RM_MFA INDEX 1 INTO DATA(WA_P2RM_MFA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RM_MFA ASSIGNING <P2RM_MFA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RM_MFA>-MANDT = 1.
<P2RM_MFA>-DCT_PERNR = 1.
<P2RM_MFA>-DCT_SEQNR = 1.
<P2RM_MFA>-DCT_ROWID = 1.
<P2RM_MFA>-TARAR = 1.

ENDLOOP.

LOOP AT IT_P2RM_MFA INTO WA_P2RM_MFA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RM_MFA-GRAUS, sy-vline,
  WA_P2RM_MFA-ARBS4, sy-vline,
  WA_P2RM_MFA-CTTYP, sy-vline,
  WA_P2RM_MFA-HERKN, sy-vline,
  WA_P2RM_MFA-RCLDT, sy-vline,
  WA_P2RM_MFA-ARBFK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RM_MFA 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_P2RM_MFA 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_P2RM_MFA INTO WA_P2RM_MFA.


*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_P2RM_MFA_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
TARAR TYPE STRING,
GRAUS TYPE STRING,
ARBS4 TYPE STRING,
CTTYP TYPE STRING,
HERKN TYPE STRING,
RCLDT TYPE STRING,
ARBFK TYPE STRING,
ARBST TYPE STRING,
MGTNV TYPE STRING,
FAPOS TYPE STRING,
FAAUS TYPE STRING,
FAPRT TYPE STRING,
SGLST TYPE STRING,
STDAT TYPE STRING,
ENDAT TYPE STRING,
ENRSN TYPE STRING,
PAYGR TYPE STRING,
PAYLV TYPE STRING,
FAX01 TYPE STRING,
FAX02 TYPE STRING,
FAX03 TYPE STRING,
BSGRD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RM_MFA_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_P2RM_MFA_STR-MANDT sy-vline 
WA_P2RM_MFA_STR-DCT_PERNR sy-vline 
WA_P2RM_MFA_STR-DCT_SEQNR sy-vline 
WA_P2RM_MFA_STR-DCT_ROWID sy-vline 
WA_P2RM_MFA_STR-TARAR sy-vline 
WA_P2RM_MFA_STR-GRAUS sy-vline 
WA_P2RM_MFA_STR-ARBS4 sy-vline 
WA_P2RM_MFA_STR-CTTYP sy-vline 
WA_P2RM_MFA_STR-HERKN sy-vline 
WA_P2RM_MFA_STR-RCLDT sy-vline 
WA_P2RM_MFA_STR-ARBFK sy-vline 
WA_P2RM_MFA_STR-ARBST sy-vline 
WA_P2RM_MFA_STR-MGTNV sy-vline 
WA_P2RM_MFA_STR-FAPOS sy-vline 
WA_P2RM_MFA_STR-FAAUS sy-vline 
WA_P2RM_MFA_STR-FAPRT sy-vline 
WA_P2RM_MFA_STR-SGLST sy-vline 
WA_P2RM_MFA_STR-STDAT sy-vline 
WA_P2RM_MFA_STR-ENDAT sy-vline 
WA_P2RM_MFA_STR-ENRSN sy-vline 
WA_P2RM_MFA_STR-PAYGR sy-vline 
WA_P2RM_MFA_STR-PAYLV sy-vline 
WA_P2RM_MFA_STR-FAX01 sy-vline 
WA_P2RM_MFA_STR-FAX02 sy-vline 
WA_P2RM_MFA_STR-FAX03 sy-vline 
WA_P2RM_MFA_STR-BSGRD sy-vline      INTO ld_text SEPARATED BY SPACE.

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