ABAP Select data from SAP table OILRBDRSEG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OILRBDRSEG
*  INTO TABLE @DATA(IT_OILRBDRSEG2).
*--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_OILRBDRSEG INDEX 1 INTO DATA(WA_OILRBDRSEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OILRBDRSEG>-OINEGPSTG = 1.
<OILRBDRSEG>-KBETR = 1.
<OILRBDRSEG>-KRECH = 1.
<OILRBDRSEG>-KPEIN = 1.
<OILRBDRSEG>-KNTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OILRBDRSEG-OICONDWAERS, sy-vline,
  WA_OILRBDRSEG-OIA_SPLTIV, sy-vline,
  WA_OILRBDRSEG-OIINVCYC, sy-vline,
  WA_OILRBDRSEG-OIA_ZTERM, sy-vline,
  WA_OILRBDRSEG-OIORBTR, sy-vline,
  WA_OILRBDRSEG-KONNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OILRBDRSEG 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_OILRBDRSEG 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_OILRBDRSEG INTO WA_OILRBDRSEG.


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

*Conversion exit EXCRT, internal->external for field WKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_OILRBDRSEG-WKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OILRBDRSEG-WKURS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field OIUOMQT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OILRBDRSEG-OIUOMQT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OILRBDRSEG-OIUOMQT.
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_OILRBDRSEG_STR, 
OINEGPSTG TYPE STRING,
KBETR TYPE STRING,
KRECH TYPE STRING,
KPEIN TYPE STRING,
KNTYP TYPE STRING,
OICONDWAERS TYPE STRING,
OIA_SPLTIV TYPE STRING,
OIINVCYC TYPE STRING,
OIA_ZTERM TYPE STRING,
OIORBTR TYPE STRING,
KONNR TYPE STRING,
OIA_FE TYPE STRING,
OIA_FD TYPE STRING,
OIACPOL TYPE STRING,
WKURS TYPE STRING,
OIRATE TYPE STRING,
OIEXGNUM TYPE STRING,
OIMATPST TYPE STRING,
OITAXGRP TYPE STRING,
OIHANTYP TYPE STRING,
OITAXFROM TYPE STRING,
OITAXTO TYPE STRING,
OIPRICIE TYPE STRING,
OIFULTAX TYPE STRING,
OITXVAL0 TYPE STRING,
OITXVAL1 TYPE STRING,
OITXVAL2 TYPE STRING,
OITXVAL3 TYPE STRING,
OITXVAL4 TYPE STRING,
OITXVAL5 TYPE STRING,
OITXVAL6 TYPE STRING,
OIOILCON TYPE STRING,
OITAXCON TYPE STRING,
OITAXVAL TYPE STRING,
OIOILCON2 TYPE STRING,
OIUOMQT TYPE STRING,
OITAXQT TYPE STRING,
OIFUTQT TYPE STRING,
OIFUTTX TYPE STRING,
OIFUTDT TYPE STRING,
OIFUTQT2 TYPE STRING,
OIFUTTX2 TYPE STRING,
ROIFUTDT2 TYPE STRING,
OIEDCLT TYPE STRING,
OIWEEDWR TYPE STRING,
OIREEDWR TYPE STRING,
OIA_IPMVAT TYPE STRING,
OIVATH TYPE STRING,
OIVATF TYPE STRING,
OINETTNG TYPE STRING,
OINETCYC TYPE STRING,
OIEXGTYP TYPE STRING,
OIMATCYC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OILRBDRSEG_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_OILRBDRSEG_STR-OINEGPSTG sy-vline 
WA_OILRBDRSEG_STR-KBETR sy-vline 
WA_OILRBDRSEG_STR-KRECH sy-vline 
WA_OILRBDRSEG_STR-KPEIN sy-vline 
WA_OILRBDRSEG_STR-KNTYP sy-vline 
WA_OILRBDRSEG_STR-OICONDWAERS sy-vline 
WA_OILRBDRSEG_STR-OIA_SPLTIV sy-vline 
WA_OILRBDRSEG_STR-OIINVCYC sy-vline 
WA_OILRBDRSEG_STR-OIA_ZTERM sy-vline 
WA_OILRBDRSEG_STR-OIORBTR sy-vline 
WA_OILRBDRSEG_STR-KONNR sy-vline 
WA_OILRBDRSEG_STR-OIA_FE sy-vline 
WA_OILRBDRSEG_STR-OIA_FD sy-vline 
WA_OILRBDRSEG_STR-OIACPOL sy-vline 
WA_OILRBDRSEG_STR-WKURS sy-vline 
WA_OILRBDRSEG_STR-OIRATE sy-vline 
WA_OILRBDRSEG_STR-OIEXGNUM sy-vline 
WA_OILRBDRSEG_STR-OIMATPST sy-vline 
WA_OILRBDRSEG_STR-OITAXGRP sy-vline 
WA_OILRBDRSEG_STR-OIHANTYP sy-vline 
WA_OILRBDRSEG_STR-OITAXFROM sy-vline 
WA_OILRBDRSEG_STR-OITAXTO sy-vline 
WA_OILRBDRSEG_STR-OIPRICIE sy-vline 
WA_OILRBDRSEG_STR-OIFULTAX sy-vline 
WA_OILRBDRSEG_STR-OITXVAL0 sy-vline 
WA_OILRBDRSEG_STR-OITXVAL1 sy-vline 
WA_OILRBDRSEG_STR-OITXVAL2 sy-vline 
WA_OILRBDRSEG_STR-OITXVAL3 sy-vline 
WA_OILRBDRSEG_STR-OITXVAL4 sy-vline 
WA_OILRBDRSEG_STR-OITXVAL5 sy-vline 
WA_OILRBDRSEG_STR-OITXVAL6 sy-vline 
WA_OILRBDRSEG_STR-OIOILCON sy-vline 
WA_OILRBDRSEG_STR-OITAXCON sy-vline 
WA_OILRBDRSEG_STR-OITAXVAL sy-vline 
WA_OILRBDRSEG_STR-OIOILCON2 sy-vline 
WA_OILRBDRSEG_STR-OIUOMQT sy-vline 
WA_OILRBDRSEG_STR-OITAXQT sy-vline 
WA_OILRBDRSEG_STR-OIFUTQT sy-vline 
WA_OILRBDRSEG_STR-OIFUTTX sy-vline 
WA_OILRBDRSEG_STR-OIFUTDT sy-vline 
WA_OILRBDRSEG_STR-OIFUTQT2 sy-vline 
WA_OILRBDRSEG_STR-OIFUTTX2 sy-vline 
WA_OILRBDRSEG_STR-ROIFUTDT2 sy-vline 
WA_OILRBDRSEG_STR-OIEDCLT sy-vline 
WA_OILRBDRSEG_STR-OIWEEDWR sy-vline 
WA_OILRBDRSEG_STR-OIREEDWR sy-vline 
WA_OILRBDRSEG_STR-OIA_IPMVAT sy-vline 
WA_OILRBDRSEG_STR-OIVATH sy-vline 
WA_OILRBDRSEG_STR-OIVATF sy-vline 
WA_OILRBDRSEG_STR-OINETTNG sy-vline 
WA_OILRBDRSEG_STR-OINETCYC sy-vline 
WA_OILRBDRSEG_STR-OIEXGTYP sy-vline 
WA_OILRBDRSEG_STR-OIMATCYC sy-vline      INTO ld_text SEPARATED BY SPACE.

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