ABAP Select data from SAP table PCA_AR_DUE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCA_AR_DUE
*  INTO TABLE @DATA(IT_PCA_AR_DUE2).
*--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_PCA_AR_DUE INDEX 1 INTO DATA(WA_PCA_AR_DUE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCA_AR_DUE>-ZFBDT = 1.
<PCA_AR_DUE>-ZBD1T = 1.
<PCA_AR_DUE>-ZBD2T = 1.
<PCA_AR_DUE>-ZBD3T = 1.
<PCA_AR_DUE>-DOPRVZTG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCA_AR_DUE-DOPRRBIS, sy-vline,
  WA_PCA_AR_DUE-MANDT, sy-vline,
  WA_PCA_AR_DUE-BUKRS, sy-vline,
  WA_PCA_AR_DUE-BELNR, sy-vline,
  WA_PCA_AR_DUE-GJAHR, sy-vline,
  WA_PCA_AR_DUE-BUZEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCA_AR_DUE 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_PCA_AR_DUE 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_PCA_AR_DUE INTO WA_PCA_AR_DUE.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBEW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-DMBEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-DMBEW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field BDIFFX
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-BDIFFX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-BDIFFX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBEW2
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-DMBEW2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-DMBEW2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field BDIFF2
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-BDIFF2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-BDIFF2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-DMBE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBEW3
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-DMBEW3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-DMBEW3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field BDIFF3
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-BDIFF3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-BDIFF3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_AR_DUE-PPRCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_AR_DUE-PPRCT.
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_PCA_AR_DUE_STR, 
ZFBDT TYPE STRING,
ZBD1T TYPE STRING,
ZBD2T TYPE STRING,
ZBD3T TYPE STRING,
DOPRVZTG TYPE STRING,
DOPRRBIS TYPE STRING,
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
OPZEI TYPE STRING,
TLZEI TYPE STRING,
AUZEI TYPE STRING,
LAIDOP TYPE STRING,
LAIDAP TYPE STRING,
BUDAT TYPE STRING,
AUGDT TYPE STRING,
VBUND TYPE STRING,
HKONT TYPE STRING,
KUNNR TYPE STRING,
SHKZG TYPE STRING,
DMBTR TYPE STRING,
HWAER TYPE STRING,
DMBEW TYPE STRING,
BDIFFX TYPE STRING,
DMBE2 TYPE STRING,
HWAE2 TYPE STRING,
DMBEW2 TYPE STRING,
BDIFF2 TYPE STRING,
DMBE3 TYPE STRING,
HWAE3 TYPE STRING,
DMBEW3 TYPE STRING,
BDIFF3 TYPE STRING,
GSBER TYPE STRING,
PARGB TYPE STRING,
PRCTR TYPE STRING,
PPRCT TYPE STRING,
NAME1 TYPE STRING,
ORT01 TYPE STRING,
BRAN1 TYPE STRING,
LAND1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCA_AR_DUE_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_PCA_AR_DUE_STR-ZFBDT sy-vline 
WA_PCA_AR_DUE_STR-ZBD1T sy-vline 
WA_PCA_AR_DUE_STR-ZBD2T sy-vline 
WA_PCA_AR_DUE_STR-ZBD3T sy-vline 
WA_PCA_AR_DUE_STR-DOPRVZTG sy-vline 
WA_PCA_AR_DUE_STR-DOPRRBIS sy-vline 
WA_PCA_AR_DUE_STR-MANDT sy-vline 
WA_PCA_AR_DUE_STR-BUKRS sy-vline 
WA_PCA_AR_DUE_STR-BELNR sy-vline 
WA_PCA_AR_DUE_STR-GJAHR sy-vline 
WA_PCA_AR_DUE_STR-BUZEI sy-vline 
WA_PCA_AR_DUE_STR-OPZEI sy-vline 
WA_PCA_AR_DUE_STR-TLZEI sy-vline 
WA_PCA_AR_DUE_STR-AUZEI sy-vline 
WA_PCA_AR_DUE_STR-LAIDOP sy-vline 
WA_PCA_AR_DUE_STR-LAIDAP sy-vline 
WA_PCA_AR_DUE_STR-BUDAT sy-vline 
WA_PCA_AR_DUE_STR-AUGDT sy-vline 
WA_PCA_AR_DUE_STR-VBUND sy-vline 
WA_PCA_AR_DUE_STR-HKONT sy-vline 
WA_PCA_AR_DUE_STR-KUNNR sy-vline 
WA_PCA_AR_DUE_STR-SHKZG sy-vline 
WA_PCA_AR_DUE_STR-DMBTR sy-vline 
WA_PCA_AR_DUE_STR-HWAER sy-vline 
WA_PCA_AR_DUE_STR-DMBEW sy-vline 
WA_PCA_AR_DUE_STR-BDIFFX sy-vline 
WA_PCA_AR_DUE_STR-DMBE2 sy-vline 
WA_PCA_AR_DUE_STR-HWAE2 sy-vline 
WA_PCA_AR_DUE_STR-DMBEW2 sy-vline 
WA_PCA_AR_DUE_STR-BDIFF2 sy-vline 
WA_PCA_AR_DUE_STR-DMBE3 sy-vline 
WA_PCA_AR_DUE_STR-HWAE3 sy-vline 
WA_PCA_AR_DUE_STR-DMBEW3 sy-vline 
WA_PCA_AR_DUE_STR-BDIFF3 sy-vline 
WA_PCA_AR_DUE_STR-GSBER sy-vline 
WA_PCA_AR_DUE_STR-PARGB sy-vline 
WA_PCA_AR_DUE_STR-PRCTR sy-vline 
WA_PCA_AR_DUE_STR-PPRCT sy-vline 
WA_PCA_AR_DUE_STR-NAME1 sy-vline 
WA_PCA_AR_DUE_STR-ORT01 sy-vline 
WA_PCA_AR_DUE_STR-BRAN1 sy-vline 
WA_PCA_AR_DUE_STR-LAND1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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