ABAP Select data from SAP table PMEFB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMEFB
*  INTO TABLE @DATA(IT_PMEFB2).
*--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_PMEFB INDEX 1 INTO DATA(WA_PMEFB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMEFB>-BUKRS = 1.
<PMEFB>-WERKS = 1.
<PMEFB>-BTRTL = 1.
<PMEFB>-PERSG = 1.
<PMEFB>-PERSK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMEFB-MOLGA, sy-vline,
  WA_PMEFB-MASSN, sy-vline,
  WA_PMEFB-MASSG, sy-vline,
  WA_PMEFB-STELL, sy-vline,
  WA_PMEFB-ANSVH, sy-vline,
  WA_PMEFB-ORGEH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMEFB 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_PMEFB 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_PMEFB INTO WA_PMEFB.


*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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMEFB-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMEFB-KOSTL.
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_PMEFB_STR, 
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
MOLGA TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
STELL TYPE STRING,
ANSVH TYPE STRING,
ORGEH TYPE STRING,
PLANS TYPE STRING,
KOSTL TYPE STRING,
CTTYP TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
TEILK TYPE STRING,
BSGRD TYPE STRING,
TPART TYPE STRING,
REGSS TYPE STRING,
REGAC TYPE STRING,
REGRT TYPE STRING,
REGNO TYPE STRING,
SCHKZ TYPE STRING,
ZTERF TYPE STRING,
EMPCT TYPE STRING,
ARBST TYPE STRING,
WOSTD TYPE STRING,
MOSTD TYPE STRING,
WKWDY TYPE STRING,
PERNR TYPE STRING,
KZTIM TYPE STRING,
CPPSD TYPE STRING,
PSSTT TYPE STRING,
PSADM TYPE STRING,
ORGAN TYPE STRING,
CORPS TYPE STRING,
GRADE TYPE STRING,
DIVGV TYPE STRING,
COLPH TYPE STRING,
CTFTE TYPE STRING,
TYOPS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMEFB_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_PMEFB_STR-BUKRS sy-vline 
WA_PMEFB_STR-WERKS sy-vline 
WA_PMEFB_STR-BTRTL sy-vline 
WA_PMEFB_STR-PERSG sy-vline 
WA_PMEFB_STR-PERSK sy-vline 
WA_PMEFB_STR-MOLGA sy-vline 
WA_PMEFB_STR-MASSN sy-vline 
WA_PMEFB_STR-MASSG sy-vline 
WA_PMEFB_STR-STELL sy-vline 
WA_PMEFB_STR-ANSVH sy-vline 
WA_PMEFB_STR-ORGEH sy-vline 
WA_PMEFB_STR-PLANS sy-vline 
WA_PMEFB_STR-KOSTL sy-vline 
WA_PMEFB_STR-CTTYP sy-vline 
WA_PMEFB_STR-TRFAR sy-vline 
WA_PMEFB_STR-TRFGB sy-vline 
WA_PMEFB_STR-TRFGR sy-vline 
WA_PMEFB_STR-TRFST sy-vline 
WA_PMEFB_STR-TEILK sy-vline 
WA_PMEFB_STR-BSGRD sy-vline 
WA_PMEFB_STR-TPART sy-vline 
WA_PMEFB_STR-REGSS sy-vline 
WA_PMEFB_STR-REGAC sy-vline 
WA_PMEFB_STR-REGRT sy-vline 
WA_PMEFB_STR-REGNO sy-vline 
WA_PMEFB_STR-SCHKZ sy-vline 
WA_PMEFB_STR-ZTERF sy-vline 
WA_PMEFB_STR-EMPCT sy-vline 
WA_PMEFB_STR-ARBST sy-vline 
WA_PMEFB_STR-WOSTD sy-vline 
WA_PMEFB_STR-MOSTD sy-vline 
WA_PMEFB_STR-WKWDY sy-vline 
WA_PMEFB_STR-PERNR sy-vline 
WA_PMEFB_STR-KZTIM sy-vline 
WA_PMEFB_STR-CPPSD sy-vline 
WA_PMEFB_STR-PSSTT sy-vline 
WA_PMEFB_STR-PSADM sy-vline 
WA_PMEFB_STR-ORGAN sy-vline 
WA_PMEFB_STR-CORPS sy-vline 
WA_PMEFB_STR-GRADE sy-vline 
WA_PMEFB_STR-DIVGV sy-vline 
WA_PMEFB_STR-COLPH sy-vline 
WA_PMEFB_STR-CTFTE sy-vline 
WA_PMEFB_STR-TYOPS sy-vline      INTO ld_text SEPARATED BY SPACE.

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