ABAP Select data from SAP table PMUNF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMUNF
*  INTO TABLE @DATA(IT_PMUNF2).
*--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_PMUNF INDEX 1 INTO DATA(WA_PMUNF2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMUNF-PERSK, sy-vline,
  WA_PMUNF-ORGEH, sy-vline,
  WA_PMUNF-ANSVH, sy-vline,
  WA_PMUNF-RESIS, sy-vline,
  WA_PMUNF-UNINR, sy-vline,
  WA_PMUNF-STELL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMUNF 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_PMUNF 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_PMUNF INTO WA_PMUNF.


*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_PMUNF_STR, 
MOLGA TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ORGEH TYPE STRING,
ANSVH TYPE STRING,
RESIS TYPE STRING,
UNINR TYPE STRING,
STELL TYPE STRING,
GENDR TYPE STRING,
PSTLZ TYPE STRING,
WOSTD TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
JOBCL TYPE STRING,
EXMPT TYPE STRING,
REGIO TYPE STRING,
DISAB TYPE STRING,
FAMST TYPE STRING,
HICMP TYPE STRING,
BAREA TYPE STRING,
BENGR TYPE STRING,
BSTAT TYPE STRING,
BPLAN TYPE STRING,
STATE TYPE STRING,
CTTYP TYPE STRING,
RECST TYPE STRING,
CONCT TYPE STRING,
CSATR TYPE STRING,
CTPYO TYPE STRING,
PAYRL TYPE STRING,
PRBLG TYPE STRING,
CTLGH TYPE STRING,
CTLGA TYPE STRING,
CTLTD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMUNF_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_PMUNF_STR-MOLGA sy-vline 
WA_PMUNF_STR-BUKRS sy-vline 
WA_PMUNF_STR-WERKS sy-vline 
WA_PMUNF_STR-BTRTL sy-vline 
WA_PMUNF_STR-PERSG sy-vline 
WA_PMUNF_STR-PERSK sy-vline 
WA_PMUNF_STR-ORGEH sy-vline 
WA_PMUNF_STR-ANSVH sy-vline 
WA_PMUNF_STR-RESIS sy-vline 
WA_PMUNF_STR-UNINR sy-vline 
WA_PMUNF_STR-STELL sy-vline 
WA_PMUNF_STR-GENDR sy-vline 
WA_PMUNF_STR-PSTLZ sy-vline 
WA_PMUNF_STR-WOSTD sy-vline 
WA_PMUNF_STR-TRFAR sy-vline 
WA_PMUNF_STR-TRFGB sy-vline 
WA_PMUNF_STR-TRFGR sy-vline 
WA_PMUNF_STR-TRFST sy-vline 
WA_PMUNF_STR-JOBCL sy-vline 
WA_PMUNF_STR-EXMPT sy-vline 
WA_PMUNF_STR-REGIO sy-vline 
WA_PMUNF_STR-DISAB sy-vline 
WA_PMUNF_STR-FAMST sy-vline 
WA_PMUNF_STR-HICMP sy-vline 
WA_PMUNF_STR-BAREA sy-vline 
WA_PMUNF_STR-BENGR sy-vline 
WA_PMUNF_STR-BSTAT sy-vline 
WA_PMUNF_STR-BPLAN sy-vline 
WA_PMUNF_STR-STATE sy-vline 
WA_PMUNF_STR-CTTYP sy-vline 
WA_PMUNF_STR-RECST sy-vline 
WA_PMUNF_STR-CONCT sy-vline 
WA_PMUNF_STR-CSATR sy-vline 
WA_PMUNF_STR-CTPYO sy-vline 
WA_PMUNF_STR-PAYRL sy-vline 
WA_PMUNF_STR-PRBLG sy-vline 
WA_PMUNF_STR-CTLGH sy-vline 
WA_PMUNF_STR-CTLGA sy-vline 
WA_PMUNF_STR-CTLTD sy-vline      INTO ld_text SEPARATED BY SPACE.

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