ABAP Select data from SAP table PUA_1DF_ROW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PUA_1DF_ROW 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 PUA_1DF_ROW. 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 PUA_1DF_ROW 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_PUA_1DF_ROW TYPE STANDARD TABLE OF PUA_1DF_ROW,
      WA_PUA_1DF_ROW TYPE PUA_1DF_ROW,
      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: <PUA_1DF_ROW> TYPE PUA_1DF_ROW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PUA_1DF_ROW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PUA_1DF_ROW
  INTO TABLE IT_PUA_1DF_ROW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUA_1DF_ROW
*  INTO TABLE @DATA(IT_PUA_1DF_ROW2).
*--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_PUA_1DF_ROW INDEX 1 INTO DATA(WA_PUA_1DF_ROW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PUA_1DF_ROW ASSIGNING <PUA_1DF_ROW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PUA_1DF_ROW>-NP = 1.
<PUA_1DF_ROW>-PERID = 1.
<PUA_1DF_ROW>-RIK = 1.
<PUA_1DF_ROW>-KOD = 1.
<PUA_1DF_ROW>-TYP = 1.

ENDLOOP.

LOOP AT IT_PUA_1DF_ROW INTO WA_PUA_1DF_ROW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUA_1DF_ROW-PTIN, sy-vline,
  WA_PUA_1DF_ROW-S_NAR, sy-vline,
  WA_PUA_1DF_ROW-S_DOX, sy-vline,
  WA_PUA_1DF_ROW-STAXN, sy-vline,
  WA_PUA_1DF_ROW-STAXP, sy-vline,
  WA_PUA_1DF_ROW-MTAXL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUA_1DF_ROW 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_PUA_1DF_ROW 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_PUA_1DF_ROW INTO WA_PUA_1DF_ROW.


*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_PUA_1DF_ROW_STR, 
NP TYPE STRING,
PERID TYPE STRING,
RIK TYPE STRING,
KOD TYPE STRING,
TYP TYPE STRING,
PTIN TYPE STRING,
S_NAR TYPE STRING,
S_DOX TYPE STRING,
STAXN TYPE STRING,
STAXP TYPE STRING,
MTAXL TYPE STRING,
MTAXP TYPE STRING,
OZNDX TYPE STRING,
DPRIN TYPE STRING,
DZVIL TYPE STRING,
OZNPL TYPE STRING,
OZNKA TYPE STRING,
NUMCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUA_1DF_ROW_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_PUA_1DF_ROW_STR-NP sy-vline 
WA_PUA_1DF_ROW_STR-PERID sy-vline 
WA_PUA_1DF_ROW_STR-RIK sy-vline 
WA_PUA_1DF_ROW_STR-KOD sy-vline 
WA_PUA_1DF_ROW_STR-TYP sy-vline 
WA_PUA_1DF_ROW_STR-PTIN sy-vline 
WA_PUA_1DF_ROW_STR-S_NAR sy-vline 
WA_PUA_1DF_ROW_STR-S_DOX sy-vline 
WA_PUA_1DF_ROW_STR-STAXN sy-vline 
WA_PUA_1DF_ROW_STR-STAXP sy-vline 
WA_PUA_1DF_ROW_STR-MTAXL sy-vline 
WA_PUA_1DF_ROW_STR-MTAXP sy-vline 
WA_PUA_1DF_ROW_STR-OZNDX sy-vline 
WA_PUA_1DF_ROW_STR-DPRIN sy-vline 
WA_PUA_1DF_ROW_STR-DZVIL sy-vline 
WA_PUA_1DF_ROW_STR-OZNPL sy-vline 
WA_PUA_1DF_ROW_STR-OZNKA sy-vline 
WA_PUA_1DF_ROW_STR-NUMCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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