ABAP Select data from SAP table OPAYF into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OPAYF 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 OPAYF. 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 OPAYF 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_OPAYF TYPE STANDARD TABLE OF OPAYF,
      WA_OPAYF TYPE OPAYF,
      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: <OPAYF> TYPE OPAYF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OPAYF
*  INTO TABLE @DATA(IT_OPAYF2).
*--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_OPAYF INDEX 1 INTO DATA(WA_OPAYF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OPAYF>-BUKRS = 1.
<OPAYF>-PPRIZ = 1.
<OPAYF>-PZFOR = 1.
<OPAYF>-PAVIS = 1.
<OPAYF>-PPRIA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OPAYF-PSTAP, sy-vline,
  WA_OPAYF-PESPR, sy-vline,
  WA_OPAYF-PISOC, sy-vline,
  WA_OPAYF-PSOFO, sy-vline,
  WA_OPAYF-RZAWE, sy-vline,
  WA_OPAYF-HBKID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OPAYF 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_OPAYF 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_OPAYF INTO WA_OPAYF.


*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 SPDEV, internal->external for field PPRIZ
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_OPAYF-PPRIZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OPAYF-PPRIZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field PPRIA
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_OPAYF-PPRIA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OPAYF-PPRIA.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field EMPFB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OPAYF-EMPFB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OPAYF-EMPFB.
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_OPAYF_STR, 
BUKRS TYPE STRING,
PPRIZ TYPE STRING,
PZFOR TYPE STRING,
PAVIS TYPE STRING,
PPRIA TYPE STRING,
PSTAP TYPE STRING,
PESPR TYPE STRING,
PISOC TYPE STRING,
PSOFO TYPE STRING,
RZAWE TYPE STRING,
HBKID TYPE STRING,
PFILL TYPE STRING,
XPDRU TYPE STRING,
XZBAT TYPE STRING,
XNOVO TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
EMPFB TYPE STRING,
XAKOB TYPE STRING,
SGTXT TYPE STRING,
EMPFG TYPE STRING,
ABPOS TYPE STRING,
ANZPO TYPE STRING,
PDFFO TYPE STRING,
FOTYP TYPE STRING,
HKTID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OPAYF_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_OPAYF_STR-BUKRS sy-vline 
WA_OPAYF_STR-PPRIZ sy-vline 
WA_OPAYF_STR-PZFOR sy-vline 
WA_OPAYF_STR-PAVIS sy-vline 
WA_OPAYF_STR-PPRIA sy-vline 
WA_OPAYF_STR-PSTAP sy-vline 
WA_OPAYF_STR-PESPR sy-vline 
WA_OPAYF_STR-PISOC sy-vline 
WA_OPAYF_STR-PSOFO sy-vline 
WA_OPAYF_STR-RZAWE sy-vline 
WA_OPAYF_STR-HBKID sy-vline 
WA_OPAYF_STR-PFILL sy-vline 
WA_OPAYF_STR-XPDRU sy-vline 
WA_OPAYF_STR-XZBAT sy-vline 
WA_OPAYF_STR-XNOVO sy-vline 
WA_OPAYF_STR-KUNNR sy-vline 
WA_OPAYF_STR-LIFNR sy-vline 
WA_OPAYF_STR-EMPFB sy-vline 
WA_OPAYF_STR-XAKOB sy-vline 
WA_OPAYF_STR-SGTXT sy-vline 
WA_OPAYF_STR-EMPFG sy-vline 
WA_OPAYF_STR-ABPOS sy-vline 
WA_OPAYF_STR-ANZPO sy-vline 
WA_OPAYF_STR-PDFFO sy-vline 
WA_OPAYF_STR-FOTYP sy-vline 
WA_OPAYF_STR-HKTID sy-vline      INTO ld_text SEPARATED BY SPACE.

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