ABAP Select data from SAP table P12DMFA_PATH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P12DMFA_PATH 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 P12DMFA_PATH. 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 P12DMFA_PATH 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_P12DMFA_PATH TYPE STANDARD TABLE OF P12DMFA_PATH,
      WA_P12DMFA_PATH TYPE P12DMFA_PATH,
      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: <P12DMFA_PATH> TYPE P12DMFA_PATH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P12DMFA_PATH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P12DMFA_PATH
  INTO TABLE IT_P12DMFA_PATH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P12DMFA_PATH
*  INTO TABLE @DATA(IT_P12DMFA_PATH2).
*--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_P12DMFA_PATH INDEX 1 INTO DATA(WA_P12DMFA_PATH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P12DMFA_PATH ASSIGNING <P12DMFA_PATH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P12DMFA_PATH>-QUART = 1.
<P12DMFA_PATH>-RSZNR = 1.
<P12DMFA_PATH>-NOSSP = 1.
<P12DMFA_PATH>-TRSTE = 1.
<P12DMFA_PATH>-COMID = 1.

ENDLOOP.

LOOP AT IT_P12DMFA_PATH INTO WA_P12DMFA_PATH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P12DMFA_PATH-CRECL, sy-vline,
  WA_P12DMFA_PATH-CRCOD, sy-vline,
  WA_P12DMFA_PATH-SEQNR, sy-vline,
  WA_P12DMFA_PATH-RSZRR, sy-vline,
  WA_P12DMFA_PATH-RSZCA, sy-vline,
  WA_P12DMFA_PATH-RSZKN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P12DMFA_PATH 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_P12DMFA_PATH 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_P12DMFA_PATH INTO WA_P12DMFA_PATH.


*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_P12DMFA_PATH_STR, 
QUART TYPE STRING,
RSZNR TYPE STRING,
NOSSP TYPE STRING,
TRSTE TYPE STRING,
COMID TYPE STRING,
CRECL TYPE STRING,
CRCOD TYPE STRING,
SEQNR TYPE STRING,
RSZRR TYPE STRING,
RSZCA TYPE STRING,
RSZKN TYPE STRING,
NREMP TYPE STRING,
SENUM TYPE STRING,
SERCD TYPE STRING,
RENUM TYPE STRING,
REMCD TYPE STRING,
PAYFR TYPE STRING,
RMPCT TYPE STRING,
CODDE TYPE STRING,
DTCOD TYPE STRING,
COCOD TYPE STRING,
COTYP TYPE STRING,
PRCOD TYPE STRING,
INCOD TYPE STRING,
INDEG TYPE STRING,
NPURF TYPE STRING,
WRURF TYPE STRING,
OCURF TYPE STRING,
CSQNR TYPE STRING,
EMPNT TYPE STRING,
OCCOM TYPE STRING,
CMANT TYPE STRING,
CMHNT TYPE STRING,
CMSNT TYPE STRING,
CMRNT TYPE STRING,
CIAMT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P12DMFA_PATH_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_P12DMFA_PATH_STR-QUART sy-vline 
WA_P12DMFA_PATH_STR-RSZNR sy-vline 
WA_P12DMFA_PATH_STR-NOSSP sy-vline 
WA_P12DMFA_PATH_STR-TRSTE sy-vline 
WA_P12DMFA_PATH_STR-COMID sy-vline 
WA_P12DMFA_PATH_STR-CRECL sy-vline 
WA_P12DMFA_PATH_STR-CRCOD sy-vline 
WA_P12DMFA_PATH_STR-SEQNR sy-vline 
WA_P12DMFA_PATH_STR-RSZRR sy-vline 
WA_P12DMFA_PATH_STR-RSZCA sy-vline 
WA_P12DMFA_PATH_STR-RSZKN sy-vline 
WA_P12DMFA_PATH_STR-NREMP sy-vline 
WA_P12DMFA_PATH_STR-SENUM sy-vline 
WA_P12DMFA_PATH_STR-SERCD sy-vline 
WA_P12DMFA_PATH_STR-RENUM sy-vline 
WA_P12DMFA_PATH_STR-REMCD sy-vline 
WA_P12DMFA_PATH_STR-PAYFR sy-vline 
WA_P12DMFA_PATH_STR-RMPCT sy-vline 
WA_P12DMFA_PATH_STR-CODDE sy-vline 
WA_P12DMFA_PATH_STR-DTCOD sy-vline 
WA_P12DMFA_PATH_STR-COCOD sy-vline 
WA_P12DMFA_PATH_STR-COTYP sy-vline 
WA_P12DMFA_PATH_STR-PRCOD sy-vline 
WA_P12DMFA_PATH_STR-INCOD sy-vline 
WA_P12DMFA_PATH_STR-INDEG sy-vline 
WA_P12DMFA_PATH_STR-NPURF sy-vline 
WA_P12DMFA_PATH_STR-WRURF sy-vline 
WA_P12DMFA_PATH_STR-OCURF sy-vline 
WA_P12DMFA_PATH_STR-CSQNR sy-vline 
WA_P12DMFA_PATH_STR-EMPNT sy-vline 
WA_P12DMFA_PATH_STR-OCCOM sy-vline 
WA_P12DMFA_PATH_STR-CMANT sy-vline 
WA_P12DMFA_PATH_STR-CMHNT sy-vline 
WA_P12DMFA_PATH_STR-CMSNT sy-vline 
WA_P12DMFA_PATH_STR-CMRNT sy-vline 
WA_P12DMFA_PATH_STR-CIAMT sy-vline      INTO ld_text SEPARATED BY SPACE.

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