ABAP Select data from SAP table PRU_PFR4_LIST42 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRU_PFR4_LIST42 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 PRU_PFR4_LIST42. 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 PRU_PFR4_LIST42 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_PRU_PFR4_LIST42 TYPE STANDARD TABLE OF PRU_PFR4_LIST42,
      WA_PRU_PFR4_LIST42 TYPE PRU_PFR4_LIST42,
      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: <PRU_PFR4_LIST42> TYPE PRU_PFR4_LIST42.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRU_PFR4_LIST42.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRU_PFR4_LIST42
  INTO TABLE IT_PRU_PFR4_LIST42.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRU_PFR4_LIST42
*  INTO TABLE @DATA(IT_PRU_PFR4_LIST422).
*--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_PRU_PFR4_LIST42 INDEX 1 INTO DATA(WA_PRU_PFR4_LIST422).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRU_PFR4_LIST42 ASSIGNING <PRU_PFR4_LIST42>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRU_PFR4_LIST42>-OKPO = 1.
<PRU_PFR4_LIST42>-INN = 1.
<PRU_PFR4_LIST42>-KPP = 1.
<PRU_PFR4_LIST42>-CATP = 1.
<PRU_PFR4_LIST42>-OKUD = 1.

ENDLOOP.

LOOP AT IT_PRU_PFR4_LIST42 INTO WA_PRU_PFR4_LIST42.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRU_PFR4_LIST42-REGNO, sy-vline,
  WA_PRU_PFR4_LIST42-ORGNAME, sy-vline,
  WA_PRU_PFR4_LIST42-TIPIS, sy-vline,
  WA_PRU_PFR4_LIST42-TIPKO, sy-vline,
  WA_PRU_PFR4_LIST42-TIPOT, sy-vline,
  WA_PRU_PFR4_LIST42-NRUK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRU_PFR4_LIST42 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_PRU_PFR4_LIST42 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_PRU_PFR4_LIST42 INTO WA_PRU_PFR4_LIST42.


*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_PRU_PFR4_LIST42_STR, 
OKPO TYPE STRING,
INN TYPE STRING,
KPP TYPE STRING,
CATP TYPE STRING,
OKUD TYPE STRING,
REGNO TYPE STRING,
ORGNAME TYPE STRING,
TIPIS TYPE STRING,
TIPKO TYPE STRING,
TIPOT TYPE STRING,
NRUK TYPE STRING,
RPODP TYPE STRING,
DDATE TYPE STRING,
MDATE TYPE STRING,
YDATE TYPE STRING,
DDATD TYPE STRING,
MDATD TYPE STRING,
YDATD TYPE STRING,
NPACH TYPE STRING,
NDINP TYPE STRING,
NPINP TYPE STRING,
STRAN TYPE STRING,
LOOPKEY TYPE STRING,
LOOPKEYUP TYPE STRING,
UPPERLOOP TYPE STRING,
UPPERSTEP TYPE STRING,
PKMN_FRM_PERNR TYPE STRING,
YOPER TYPE STRING,
MOPER TYPE STRING,
INIT TYPE STRING,
QUAR1 TYPE STRING,
QUAR2 TYPE STRING,
QUAR3 TYPE STRING,
QUAR4 TYPE STRING,
YEAR1 TYPE STRING,
YEAR2 TYPE STRING,
CORR TYPE STRING,
QUAR1 TYPE STRING,
QUAR2 TYPE STRING,
QUAR3 TYPE STRING,
QUAR4 TYPE STRING,
YEAR1 TYPE STRING,
YEAR2 TYPE STRING,
YCORR TYPE STRING,
REGNK TYPE STRING,
STR TYPE STRING,
S_TOTAL TYPE STRING,
N_TOTAL TYPE STRING,
S_TOTAX TYPE STRING,
N_TOTAX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRU_PFR4_LIST42_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_PRU_PFR4_LIST42_STR-OKPO sy-vline 
WA_PRU_PFR4_LIST42_STR-INN sy-vline 
WA_PRU_PFR4_LIST42_STR-KPP sy-vline 
WA_PRU_PFR4_LIST42_STR-CATP sy-vline 
WA_PRU_PFR4_LIST42_STR-OKUD sy-vline 
WA_PRU_PFR4_LIST42_STR-REGNO sy-vline 
WA_PRU_PFR4_LIST42_STR-ORGNAME sy-vline 
WA_PRU_PFR4_LIST42_STR-TIPIS sy-vline 
WA_PRU_PFR4_LIST42_STR-TIPKO sy-vline 
WA_PRU_PFR4_LIST42_STR-TIPOT sy-vline 
WA_PRU_PFR4_LIST42_STR-NRUK sy-vline 
WA_PRU_PFR4_LIST42_STR-RPODP sy-vline 
WA_PRU_PFR4_LIST42_STR-DDATE sy-vline 
WA_PRU_PFR4_LIST42_STR-MDATE sy-vline 
WA_PRU_PFR4_LIST42_STR-YDATE sy-vline 
WA_PRU_PFR4_LIST42_STR-DDATD sy-vline 
WA_PRU_PFR4_LIST42_STR-MDATD sy-vline 
WA_PRU_PFR4_LIST42_STR-YDATD sy-vline 
WA_PRU_PFR4_LIST42_STR-NPACH sy-vline 
WA_PRU_PFR4_LIST42_STR-NDINP sy-vline 
WA_PRU_PFR4_LIST42_STR-NPINP sy-vline 
WA_PRU_PFR4_LIST42_STR-STRAN sy-vline 
WA_PRU_PFR4_LIST42_STR-LOOPKEY sy-vline 
WA_PRU_PFR4_LIST42_STR-LOOPKEYUP sy-vline 
WA_PRU_PFR4_LIST42_STR-UPPERLOOP sy-vline 
WA_PRU_PFR4_LIST42_STR-UPPERSTEP sy-vline 
WA_PRU_PFR4_LIST42_STR-PKMN_FRM_PERNR sy-vline 
WA_PRU_PFR4_LIST42_STR-YOPER sy-vline 
WA_PRU_PFR4_LIST42_STR-MOPER sy-vline 
WA_PRU_PFR4_LIST42_STR-INIT sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR1 sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR2 sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR3 sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR4 sy-vline 
WA_PRU_PFR4_LIST42_STR-YEAR1 sy-vline 
WA_PRU_PFR4_LIST42_STR-YEAR2 sy-vline 
WA_PRU_PFR4_LIST42_STR-CORR sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR1 sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR2 sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR3 sy-vline 
WA_PRU_PFR4_LIST42_STR-QUAR4 sy-vline 
WA_PRU_PFR4_LIST42_STR-YEAR1 sy-vline 
WA_PRU_PFR4_LIST42_STR-YEAR2 sy-vline 
WA_PRU_PFR4_LIST42_STR-YCORR sy-vline 
WA_PRU_PFR4_LIST42_STR-REGNK sy-vline 
WA_PRU_PFR4_LIST42_STR-STR sy-vline 
WA_PRU_PFR4_LIST42_STR-S_TOTAL sy-vline 
WA_PRU_PFR4_LIST42_STR-N_TOTAL sy-vline 
WA_PRU_PFR4_LIST42_STR-S_TOTAX sy-vline 
WA_PRU_PFR4_LIST42_STR-N_TOTAX sy-vline      INTO ld_text SEPARATED BY SPACE.

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