ABAP Select data from SAP table REAJ_EXPENSE_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REAJ_EXPENSE_L
*  INTO TABLE @DATA(IT_REAJ_EXPENSE_L2).
*--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_REAJ_EXPENSE_L INDEX 1 INTO DATA(WA_REAJ_EXPENSE_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REAJ_EXPENSE_L>-MANDT = 1.
<REAJ_EXPENSE_L>-EXPPOSGUID = 1.
<REAJ_EXPENSE_L>-INTRENO = 1.
<REAJ_EXPENSE_L>-EXPPOS = 1.
<REAJ_EXPENSE_L>-EXPPOSNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REAJ_EXPENSE_L-EXPPOSVALIDFROM, sy-vline,
  WA_REAJ_EXPENSE_L-EXPPOSVALIDTO, sy-vline,
  WA_REAJ_EXPENSE_L-EXPPOSINFO, sy-vline,
  WA_REAJ_EXPENSE_L-CALCRRL, sy-vline,
  WA_REAJ_EXPENSE_L-FINPOSGUID, sy-vline,
  WA_REAJ_EXPENSE_L-FINPOSAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REAJ_EXPENSE_L 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_REAJ_EXPENSE_L 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_REAJ_EXPENSE_L INTO WA_REAJ_EXPENSE_L.


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

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

*Conversion exit RECUP, internal->external for field FINPOSAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_RECUP_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-FINPOSAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-FINPOSAMOUNT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CALCRULEPARA1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-CALCRULEPARA1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-CALCRULEPARA1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CALCRULEPARA2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-CALCRULEPARA2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-CALCRULEPARA2.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field XCALCRULEPARA1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-XCALCRULEPARA1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-XCALCRULEPARA1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XCALCRULEPARA2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-XCALCRULEPARA2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-XCALCRULEPARA2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XCALCRULEINFO1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-XCALCRULEINFO1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-XCALCRULEINFO1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XCALCRULEINFO2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_EXPENSE_L-XCALCRULEINFO2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_EXPENSE_L-XCALCRULEINFO2.
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_REAJ_EXPENSE_L_STR, 
MANDT TYPE STRING,
EXPPOSGUID TYPE STRING,
INTRENO TYPE STRING,
EXPPOS TYPE STRING,
EXPPOSNO TYPE STRING,
EXPPOSVALIDFROM TYPE STRING,
EXPPOSVALIDTO TYPE STRING,
EXPPOSINFO TYPE STRING,
CALCRRL TYPE STRING,
FINPOSGUID TYPE STRING,
FINPOSAMOUNT TYPE STRING,
FINPOSREPAY TYPE STRING,
FINPOSINTEREST TYPE STRING,
FINPOSPROVIDER TYPE STRING,
FINPOSLOANNO TYPE STRING,
FINPOSREFLOAN TYPE STRING,
OBJNR TYPE STRING,
CALCRULE TYPE STRING,
CALCRULEPARA1 TYPE STRING,
CALCRULEPARA2 TYPE STRING,
NOMINALAMOUNT TYPE STRING,
FINPOS TYPE STRING,
XFINPOS TYPE STRING,
FINPOSGRP TYPE STRING,
XFINPOSGRP TYPE STRING,
FINTYPE TYPE STRING,
FINPOSLOANIDENT TYPE STRING,
XEXPPOS TYPE STRING,
EXPPOSGRP TYPE STRING,
XEXPPOSGRP TYPE STRING,
EXPAMOUNTYEAR TYPE STRING,
EXPAMOUNTAREAMONTH TYPE STRING,
EXPAMOUNTAREA TYPE STRING,
EXPAMOUNTAREAUNIT TYPE STRING,
EXPAVGAMOUNTAREAMONTH TYPE STRING,
EXPPOSOBJIDENT TYPE STRING,
XCALCRULE TYPE STRING,
XCALCRULEPARA1 TYPE STRING,
XCALCRULEPARA2 TYPE STRING,
XCALCRULEINFO1 TYPE STRING,
XCALCRULEINFO2 TYPE STRING,
OBJECTCOUNT TYPE STRING,
NOMINALAMTCALC TYPE STRING,
ISFINPLANPOS TYPE STRING,
SORTORDERGRP TYPE STRING,
SORTORDERPOS TYPE STRING,
HASNOTE TYPE STRING,
SORTORDER TYPE STRING,
ISINCLUDEDINSUM TYPE STRING,
ICONASSIGNLOAN TYPE STRING,
ICONASSIGNOBJ TYPE STRING,
ICONNOTE TYPE STRING,
ICONMODIFY TYPE STRING,
COLORTAB TYPE STRING,
STYLETAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REAJ_EXPENSE_L_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_REAJ_EXPENSE_L_STR-MANDT sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSGUID sy-vline 
WA_REAJ_EXPENSE_L_STR-INTRENO sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOS sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSNO sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSVALIDFROM sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSVALIDTO sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSINFO sy-vline 
WA_REAJ_EXPENSE_L_STR-CALCRRL sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSGUID sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSAMOUNT sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSREPAY sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSINTEREST sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSPROVIDER sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSLOANNO sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSREFLOAN sy-vline 
WA_REAJ_EXPENSE_L_STR-OBJNR sy-vline 
WA_REAJ_EXPENSE_L_STR-CALCRULE sy-vline 
WA_REAJ_EXPENSE_L_STR-CALCRULEPARA1 sy-vline 
WA_REAJ_EXPENSE_L_STR-CALCRULEPARA2 sy-vline 
WA_REAJ_EXPENSE_L_STR-NOMINALAMOUNT sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOS sy-vline 
WA_REAJ_EXPENSE_L_STR-XFINPOS sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSGRP sy-vline 
WA_REAJ_EXPENSE_L_STR-XFINPOSGRP sy-vline 
WA_REAJ_EXPENSE_L_STR-FINTYPE sy-vline 
WA_REAJ_EXPENSE_L_STR-FINPOSLOANIDENT sy-vline 
WA_REAJ_EXPENSE_L_STR-XEXPPOS sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSGRP sy-vline 
WA_REAJ_EXPENSE_L_STR-XEXPPOSGRP sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPAMOUNTYEAR sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPAMOUNTAREAMONTH sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPAMOUNTAREA sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPAMOUNTAREAUNIT sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPAVGAMOUNTAREAMONTH sy-vline 
WA_REAJ_EXPENSE_L_STR-EXPPOSOBJIDENT sy-vline 
WA_REAJ_EXPENSE_L_STR-XCALCRULE sy-vline 
WA_REAJ_EXPENSE_L_STR-XCALCRULEPARA1 sy-vline 
WA_REAJ_EXPENSE_L_STR-XCALCRULEPARA2 sy-vline 
WA_REAJ_EXPENSE_L_STR-XCALCRULEINFO1 sy-vline 
WA_REAJ_EXPENSE_L_STR-XCALCRULEINFO2 sy-vline 
WA_REAJ_EXPENSE_L_STR-OBJECTCOUNT sy-vline 
WA_REAJ_EXPENSE_L_STR-NOMINALAMTCALC sy-vline 
WA_REAJ_EXPENSE_L_STR-ISFINPLANPOS sy-vline 
WA_REAJ_EXPENSE_L_STR-SORTORDERGRP sy-vline 
WA_REAJ_EXPENSE_L_STR-SORTORDERPOS sy-vline 
WA_REAJ_EXPENSE_L_STR-HASNOTE sy-vline 
WA_REAJ_EXPENSE_L_STR-SORTORDER sy-vline 
WA_REAJ_EXPENSE_L_STR-ISINCLUDEDINSUM sy-vline 
WA_REAJ_EXPENSE_L_STR-ICONASSIGNLOAN sy-vline 
WA_REAJ_EXPENSE_L_STR-ICONASSIGNOBJ sy-vline 
WA_REAJ_EXPENSE_L_STR-ICONNOTE sy-vline 
WA_REAJ_EXPENSE_L_STR-ICONMODIFY sy-vline 
WA_REAJ_EXPENSE_L_STR-COLORTAB sy-vline 
WA_REAJ_EXPENSE_L_STR-STYLETAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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