ABAP Select data from SAP table ROIUY3_DISPLAY_PAYABLES_RECON into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIUY3_DISPLAY_PAYABLES_RECON 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 ROIUY3_DISPLAY_PAYABLES_RECON. 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 ROIUY3_DISPLAY_PAYABLES_RECON 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_ROIUY3_DISPLAY_PAYABLES_RECON TYPE STANDARD TABLE OF ROIUY3_DISPLAY_PAYABLES_RECON,
      WA_ROIUY3_DISPLAY_PAYABLES_RECON TYPE ROIUY3_DISPLAY_PAYABLES_RECON,
      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: <ROIUY3_DISPLAY_PAYABLES_RECON> TYPE ROIUY3_DISPLAY_PAYABLES_RECON.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIUY3_DISPLAY_PAYABLES_RECON.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIUY3_DISPLAY_PAYABLES_RECON
  INTO TABLE IT_ROIUY3_DISPLAY_PAYABLES_RECON.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIUY3_DISPLAY_PAYABLES_RECON
*  INTO TABLE @DATA(IT_ROIUY3_DISPLAY_PAYABLES_RECON2).
*--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_ROIUY3_DISPLAY_PAYABLES_RECON INDEX 1 INTO DATA(WA_ROIUY3_DISPLAY_PAYABLES_RECON2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIUY3_DISPLAY_PAYABLES_RECON ASSIGNING <ROIUY3_DISPLAY_PAYABLES_RECON>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIUY3_DISPLAY_PAYABLES_RECON>-BUKRS = 1.
<ROIUY3_DISPLAY_PAYABLES_RECON>-VNAME = 1.
<ROIUY3_DISPLAY_PAYABLES_RECON>-DOI_NO = 1.
<ROIUY3_DISPLAY_PAYABLES_RECON>-OWNER_IDENTIFIER = 1.
<ROIUY3_DISPLAY_PAYABLES_RECON>-SALES_DT = 1.

ENDLOOP.

LOOP AT IT_ROIUY3_DISPLAY_PAYABLES_RECON INTO WA_ROIUY3_DISPLAY_PAYABLES_RECON.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIUY3_DISPLAY_PAYABLES_RECON-PDCD, sy-vline,
  WA_ROIUY3_DISPLAY_PAYABLES_RECON-OPSL_AM, sy-vline,
  WA_ROIUY3_DISPLAY_PAYABLES_RECON-ROY_AM, sy-vline,
  WA_ROIUY3_DISPLAY_PAYABLES_RECON-SUSP_AM, sy-vline,
  WA_ROIUY3_DISPLAY_PAYABLES_RECON-OOS_AM, sy-vline,
  WA_ROIUY3_DISPLAY_PAYABLES_RECON-REJ_AM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIUY3_DISPLAY_PAYABLES_RECON 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_ROIUY3_DISPLAY_PAYABLES_RECON 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_ROIUY3_DISPLAY_PAYABLES_RECON INTO WA_ROIUY3_DISPLAY_PAYABLES_RECON.


*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 VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUY3_DISPLAY_PAYABLES_RECON-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUY3_DISPLAY_PAYABLES_RECON-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOI_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUY3_DISPLAY_PAYABLES_RECON-DOI_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUY3_DISPLAY_PAYABLES_RECON-DOI_NO.
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_ROIUY3_DISPLAY_PAYABLES_RECON_STR, 
BUKRS TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
OWNER_IDENTIFIER TYPE STRING,
SALES_DT TYPE STRING,
PDCD TYPE STRING,
OPSL_AM TYPE STRING,
ROY_AM TYPE STRING,
SUSP_AM TYPE STRING,
OOS_AM TYPE STRING,
REJ_AM TYPE STRING,
ROY_VALUE TYPE STRING,
PRDT_AM TYPE STRING,
OPSL_DIFF TYPE STRING,
ROY_DIFF TYPE STRING,
JE_TRANS TYPE STRING,
JE_TRANS_AM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIUY3_DISPLAY_PAYABLES_RECON_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_ROIUY3_DISPLAY_PAYABLES_RECON_STR-BUKRS sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-VNAME sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-DOI_NO sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-OWNER_IDENTIFIER sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-SALES_DT sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-PDCD sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-OPSL_AM sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-ROY_AM sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-SUSP_AM sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-OOS_AM sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-REJ_AM sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-ROY_VALUE sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-PRDT_AM sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-OPSL_DIFF sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-ROY_DIFF sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-JE_TRANS sy-vline 
WA_ROIUY3_DISPLAY_PAYABLES_RECON_STR-JE_TRANS_AM sy-vline      INTO ld_text SEPARATED BY SPACE.

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