ABAP Select data from SAP table OIL_CFIN_ACCIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIL_CFIN_ACCIT
*  INTO TABLE @DATA(IT_OIL_CFIN_ACCIT2).
*--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_OIL_CFIN_ACCIT INDEX 1 INTO DATA(WA_OIL_CFIN_ACCIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIL_CFIN_ACCIT>-OITAXFROM = 1.
<OIL_CFIN_ACCIT>-OITAXTO = 1.
<OIL_CFIN_ACCIT>-OIFULTAX = 1.
<OIL_CFIN_ACCIT>-OIHANTYPE = 1.
<OIL_CFIN_ACCIT>-OITAXGRP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIL_CFIN_ACCIT-OIPRICIE, sy-vline,
  WA_OIL_CFIN_ACCIT-OIINVREC, sy-vline,
  WA_OIL_CFIN_ACCIT-OITXVAL0, sy-vline,
  WA_OIL_CFIN_ACCIT-OITXVAL1, sy-vline,
  WA_OIL_CFIN_ACCIT-OITXVAL2, sy-vline,
  WA_OIL_CFIN_ACCIT-OITXVAL3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIL_CFIN_ACCIT 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_OIL_CFIN_ACCIT 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_OIL_CFIN_ACCIT INTO WA_OIL_CFIN_ACCIT.


*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 CUNIT, internal->external for field OIUOMQT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIL_CFIN_ACCIT-OIUOMQT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIL_CFIN_ACCIT-OIUOMQT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OIEXGNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIL_CFIN_ACCIT-OIEXGNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIL_CFIN_ACCIT-OIEXGNUM.
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_OIL_CFIN_ACCIT_STR, 
OITAXFROM TYPE STRING,
OITAXTO TYPE STRING,
OIFULTAX TYPE STRING,
OIHANTYPE TYPE STRING,
OITAXGRP TYPE STRING,
OIPRICIE TYPE STRING,
OIINVREC 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,
OIFUTDT2 TYPE STRING,
OITAXGRP2 TYPE STRING,
OICIMAP TYPE STRING,
OIHANTYP TYPE STRING,
OIVATH TYPE STRING,
OIVATF TYPE STRING,
OINETCYC TYPE STRING,
OIA_IPMVAT TYPE STRING,
OIEXGNUM TYPE STRING,
OIEXGTYP TYPE STRING,
OINEGPSTG TYPE STRING,
RECID_MAN TYPE STRING,
OIPOSTZERO TYPE STRING,
OIINVCYC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIL_CFIN_ACCIT_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_OIL_CFIN_ACCIT_STR-OITAXFROM sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITAXTO sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFULTAX sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIHANTYPE sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITAXGRP sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIPRICIE sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIINVREC sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL0 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL1 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL2 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL3 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL4 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL5 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITXVAL6 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIOILCON sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITAXCON sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITAXVAL sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIOILCON2 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIUOMQT sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITAXQT sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFUTQT sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFUTTX sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFUTDT sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFUTQT2 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFUTTX2 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIFUTDT2 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OITAXGRP2 sy-vline 
WA_OIL_CFIN_ACCIT_STR-OICIMAP sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIHANTYP sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIVATH sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIVATF sy-vline 
WA_OIL_CFIN_ACCIT_STR-OINETCYC sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIA_IPMVAT sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIEXGNUM sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIEXGTYP sy-vline 
WA_OIL_CFIN_ACCIT_STR-OINEGPSTG sy-vline 
WA_OIL_CFIN_ACCIT_STR-RECID_MAN sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIPOSTZERO sy-vline 
WA_OIL_CFIN_ACCIT_STR-OIINVCYC sy-vline      INTO ld_text SEPARATED BY SPACE.

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