ABAP Select data from SAP table REAJC_RLRA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REAJC_RLRA
*  INTO TABLE @DATA(IT_REAJC_RLRA2).
*--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_REAJC_RLRA INDEX 1 INTO DATA(WA_REAJC_RLRA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REAJC_RLRA>-MANDT = 1.
<REAJC_RLRA>-RLRA = 1.
<REAJC_RLRA>-RLRAVALIDFROM = 1.
<REAJC_RLRA>-RLRAVALIDTO = 1.
<REAJC_RLRA>-RLRAHASLOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REAJC_RLRA-RLRAHASFFCT, sy-vline,
  WA_REAJC_RLRA-RLRAHASLABEL, sy-vline,
  WA_REAJC_RLRA-RLRAHASSRCH, sy-vline,
  WA_REAJC_RLRA-RLRAVALSTRUC, sy-vline,
  WA_REAJC_RLRA-RLRACURRENCY, sy-vline,
  WA_REAJC_RLRA-RLRAADJMBASEIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REAJC_RLRA 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_REAJC_RLRA 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_REAJC_RLRA INTO WA_REAJC_RLRA.


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

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

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

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

*Conversion exit CUNIT, internal->external for field RLRASIZUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REAJC_RLRA-RLRASIZUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJC_RLRA-RLRASIZUNIT.
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_REAJC_RLRA_STR, 
MANDT TYPE STRING,
RLRA TYPE STRING,
RLRAVALIDFROM TYPE STRING,
RLRAVALIDTO TYPE STRING,
RLRAHASLOC TYPE STRING,
RLRAHASFFCT TYPE STRING,
RLRAHASLABEL TYPE STRING,
RLRAHASSRCH TYPE STRING,
RLRAVALSTRUC TYPE STRING,
RLRACURRENCY TYPE STRING,
RLRAADJMBASEIND TYPE STRING,
RLRAADJMPOINTS TYPE STRING,
RLRAMAINRLRA TYPE STRING,
RLRASIZMEAS TYPE STRING,
RLRASIZUNIT TYPE STRING,
RLRAHASSIZ TYPE STRING,
RLRAHASAGE TYPE STRING,
RLRACHCTPOINTWEIGHTED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REAJC_RLRA_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_REAJC_RLRA_STR-MANDT sy-vline 
WA_REAJC_RLRA_STR-RLRA sy-vline 
WA_REAJC_RLRA_STR-RLRAVALIDFROM sy-vline 
WA_REAJC_RLRA_STR-RLRAVALIDTO sy-vline 
WA_REAJC_RLRA_STR-RLRAHASLOC sy-vline 
WA_REAJC_RLRA_STR-RLRAHASFFCT sy-vline 
WA_REAJC_RLRA_STR-RLRAHASLABEL sy-vline 
WA_REAJC_RLRA_STR-RLRAHASSRCH sy-vline 
WA_REAJC_RLRA_STR-RLRAVALSTRUC sy-vline 
WA_REAJC_RLRA_STR-RLRACURRENCY sy-vline 
WA_REAJC_RLRA_STR-RLRAADJMBASEIND sy-vline 
WA_REAJC_RLRA_STR-RLRAADJMPOINTS sy-vline 
WA_REAJC_RLRA_STR-RLRAMAINRLRA sy-vline 
WA_REAJC_RLRA_STR-RLRASIZMEAS sy-vline 
WA_REAJC_RLRA_STR-RLRASIZUNIT sy-vline 
WA_REAJC_RLRA_STR-RLRAHASSIZ sy-vline 
WA_REAJC_RLRA_STR-RLRAHASAGE sy-vline 
WA_REAJC_RLRA_STR-RLRACHCTPOINTWEIGHTED sy-vline      INTO ld_text SEPARATED BY SPACE.

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