ABAP Select data from SAP table RERAADVPAYEXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RERAADVPAYEXT
*  INTO TABLE @DATA(IT_RERAADVPAYEXT2).
*--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_RERAADVPAYEXT INDEX 1 INTO DATA(WA_RERAADVPAYEXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RERAADVPAYEXT>-MANDT = 1.
<RERAADVPAYEXT>-ADVPAYEXTGUID = 1.
<RERAADVPAYEXT>-OBJNR = 1.
<RERAADVPAYEXT>-ADD_OBJNR = 1.
<RERAADVPAYEXT>-CONDTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RERAADVPAYEXT-CONDVALIDFROM, sy-vline,
  WA_RERAADVPAYEXT-VALIDFROM, sy-vline,
  WA_RERAADVPAYEXT-PARTNER, sy-vline,
  WA_RERAADVPAYEXT-PARTNEROBJNR, sy-vline,
  WA_RERAADVPAYEXT-VALIDTO, sy-vline,
  WA_RERAADVPAYEXT-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RERAADVPAYEXT 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_RERAADVPAYEXT 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_RERAADVPAYEXT INTO WA_RERAADVPAYEXT.


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

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

*Conversion exit REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RERAADVPAYEXT-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RERAADVPAYEXT-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RERAADVPAYEXT-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RERAADVPAYEXT-LOGSYSTEM.
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_RERAADVPAYEXT_STR, 
MANDT TYPE STRING,
ADVPAYEXTGUID TYPE STRING,
OBJNR TYPE STRING,
ADD_OBJNR TYPE STRING,
CONDTYPE TYPE STRING,
CONDVALIDFROM TYPE STRING,
VALIDFROM TYPE STRING,
PARTNER TYPE STRING,
PARTNEROBJNR TYPE STRING,
VALIDTO TYPE STRING,
CURRENCY TYPE STRING,
FLOWTYPE TYPE STRING,
TAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
TXJCD TYPE STRING,
TAXDATE TYPE STRING,
USESPECGLIND TYPE STRING,
ACCSYSTEM TYPE STRING,
LOGSYSTEM TYPE STRING,
REFDOCTYPE TYPE STRING,
REFDOCID TYPE STRING,
REFITEMNO TYPE STRING,
NETAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
ISINCLINCF TYPE STRING,
WHEREFROM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RERAADVPAYEXT_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_RERAADVPAYEXT_STR-MANDT sy-vline 
WA_RERAADVPAYEXT_STR-ADVPAYEXTGUID sy-vline 
WA_RERAADVPAYEXT_STR-OBJNR sy-vline 
WA_RERAADVPAYEXT_STR-ADD_OBJNR sy-vline 
WA_RERAADVPAYEXT_STR-CONDTYPE sy-vline 
WA_RERAADVPAYEXT_STR-CONDVALIDFROM sy-vline 
WA_RERAADVPAYEXT_STR-VALIDFROM sy-vline 
WA_RERAADVPAYEXT_STR-PARTNER sy-vline 
WA_RERAADVPAYEXT_STR-PARTNEROBJNR sy-vline 
WA_RERAADVPAYEXT_STR-VALIDTO sy-vline 
WA_RERAADVPAYEXT_STR-CURRENCY sy-vline 
WA_RERAADVPAYEXT_STR-FLOWTYPE sy-vline 
WA_RERAADVPAYEXT_STR-TAXTYPE sy-vline 
WA_RERAADVPAYEXT_STR-TAXGROUP sy-vline 
WA_RERAADVPAYEXT_STR-TXJCD sy-vline 
WA_RERAADVPAYEXT_STR-TAXDATE sy-vline 
WA_RERAADVPAYEXT_STR-USESPECGLIND sy-vline 
WA_RERAADVPAYEXT_STR-ACCSYSTEM sy-vline 
WA_RERAADVPAYEXT_STR-LOGSYSTEM sy-vline 
WA_RERAADVPAYEXT_STR-REFDOCTYPE sy-vline 
WA_RERAADVPAYEXT_STR-REFDOCID sy-vline 
WA_RERAADVPAYEXT_STR-REFITEMNO sy-vline 
WA_RERAADVPAYEXT_STR-NETAMOUNT sy-vline 
WA_RERAADVPAYEXT_STR-TAXAMOUNT sy-vline 
WA_RERAADVPAYEXT_STR-ISINCLINCF sy-vline 
WA_RERAADVPAYEXT_STR-WHEREFROM sy-vline      INTO ld_text SEPARATED BY SPACE.

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