ABAP Select data from SAP table PIR_V_UNIONA_HD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIR_V_UNIONA_HD
*  INTO TABLE @DATA(IT_PIR_V_UNIONA_HD2).
*--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_PIR_V_UNIONA_HD INDEX 1 INTO DATA(WA_PIR_V_UNIONA_HD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIR_V_UNIONA_HD>-MANDT = 1.
<PIR_V_UNIONA_HD>-MATNR = 1.
<PIR_V_UNIONA_HD>-WERKS = 1.
<PIR_V_UNIONA_HD>-BERID = 1.
<PIR_V_UNIONA_HD>-BEDAE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIR_V_UNIONA_HD-VERSB, sy-vline,
  WA_PIR_V_UNIONA_HD-SGT_RCAT, sy-vline,
  WA_PIR_V_UNIONA_HD-PBDNR, sy-vline,
  WA_PIR_V_UNIONA_HD-PBDNR_EXT, sy-vline,
  WA_PIR_V_UNIONA_HD-BDZEI, sy-vline,
  WA_PIR_V_UNIONA_HD-ZUVKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIR_V_UNIONA_HD 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_PIR_V_UNIONA_HD 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_PIR_V_UNIONA_HD INTO WA_PIR_V_UNIONA_HD.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_UNIONA_HD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_UNIONA_HD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_UNIONA_HD-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_UNIONA_HD-PSPEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_UNIONA_HD-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_UNIONA_HD-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIR_V_UNIONA_HD-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIR_V_UNIONA_HD-KDAUF.
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_PIR_V_UNIONA_HD_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BERID TYPE STRING,
BEDAE TYPE STRING,
VERSB TYPE STRING,
SGT_RCAT TYPE STRING,
PBDNR TYPE STRING,
PBDNR_EXT TYPE STRING,
BDZEI TYPE STRING,
ZUVKZ TYPE STRING,
VERVS TYPE STRING,
VERKZ TYPE STRING,
ZUOKR TYPE STRING,
PLNKZ TYPE STRING,
TXTKZ TYPE STRING,
UEBKZ TYPE STRING,
DATLP TYPE STRING,
UHRLP TYPE STRING,
AGGPB TYPE STRING,
PLSCN TYPE STRING,
VRSIO TYPE STRING,
MCINF TYPE STRING,
STFNA TYPE STRING,
OPLKZ TYPE STRING,
MCINC TYPE STRING,
VRSIC TYPE STRING,
KNTTP TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
PSPEL TYPE STRING,
POSID TYPE STRING,
KDPOS TYPE STRING,
KDAUF TYPE STRING,
PROFILID TYPE STRING,
KZBWS TYPE STRING,
LOEVR TYPE STRING,
LASTCHANGEDTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIR_V_UNIONA_HD_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_PIR_V_UNIONA_HD_STR-MANDT sy-vline 
WA_PIR_V_UNIONA_HD_STR-MATNR sy-vline 
WA_PIR_V_UNIONA_HD_STR-WERKS sy-vline 
WA_PIR_V_UNIONA_HD_STR-BERID sy-vline 
WA_PIR_V_UNIONA_HD_STR-BEDAE sy-vline 
WA_PIR_V_UNIONA_HD_STR-VERSB sy-vline 
WA_PIR_V_UNIONA_HD_STR-SGT_RCAT sy-vline 
WA_PIR_V_UNIONA_HD_STR-PBDNR sy-vline 
WA_PIR_V_UNIONA_HD_STR-PBDNR_EXT sy-vline 
WA_PIR_V_UNIONA_HD_STR-BDZEI sy-vline 
WA_PIR_V_UNIONA_HD_STR-ZUVKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-VERVS sy-vline 
WA_PIR_V_UNIONA_HD_STR-VERKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-ZUOKR sy-vline 
WA_PIR_V_UNIONA_HD_STR-PLNKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-TXTKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-UEBKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-DATLP sy-vline 
WA_PIR_V_UNIONA_HD_STR-UHRLP sy-vline 
WA_PIR_V_UNIONA_HD_STR-AGGPB sy-vline 
WA_PIR_V_UNIONA_HD_STR-PLSCN sy-vline 
WA_PIR_V_UNIONA_HD_STR-VRSIO sy-vline 
WA_PIR_V_UNIONA_HD_STR-MCINF sy-vline 
WA_PIR_V_UNIONA_HD_STR-STFNA sy-vline 
WA_PIR_V_UNIONA_HD_STR-OPLKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-MCINC sy-vline 
WA_PIR_V_UNIONA_HD_STR-VRSIC sy-vline 
WA_PIR_V_UNIONA_HD_STR-KNTTP sy-vline 
WA_PIR_V_UNIONA_HD_STR-SOBKZ sy-vline 
WA_PIR_V_UNIONA_HD_STR-KZVBR sy-vline 
WA_PIR_V_UNIONA_HD_STR-PSPEL sy-vline 
WA_PIR_V_UNIONA_HD_STR-POSID sy-vline 
WA_PIR_V_UNIONA_HD_STR-KDPOS sy-vline 
WA_PIR_V_UNIONA_HD_STR-KDAUF sy-vline 
WA_PIR_V_UNIONA_HD_STR-PROFILID sy-vline 
WA_PIR_V_UNIONA_HD_STR-KZBWS sy-vline 
WA_PIR_V_UNIONA_HD_STR-LOEVR sy-vline 
WA_PIR_V_UNIONA_HD_STR-LASTCHANGEDTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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