ABAP Select data from SAP table REIT_OPTION_RATE_L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REIT_OPTION_RATE_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 REIT_OPTION_RATE_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 REIT_OPTION_RATE_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_REIT_OPTION_RATE_L TYPE STANDARD TABLE OF REIT_OPTION_RATE_L,
      WA_REIT_OPTION_RATE_L TYPE REIT_OPTION_RATE_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: <REIT_OPTION_RATE_L> TYPE REIT_OPTION_RATE_L.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIT_OPTION_RATE_L
*  INTO TABLE @DATA(IT_REIT_OPTION_RATE_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_REIT_OPTION_RATE_L INDEX 1 INTO DATA(WA_REIT_OPTION_RATE_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIT_OPTION_RATE_L>-MANDT = 1.
<REIT_OPTION_RATE_L>-OBJNR = 1.
<REIT_OPTION_RATE_L>-OBJNRDETAIL = 1.
<REIT_OPTION_RATE_L>-ANCHPER = 1.
<REIT_OPTION_RATE_L>-VERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIT_OPTION_RATE_L-VALIDFROM, sy-vline,
  WA_REIT_OPTION_RATE_L-VALIDTO, sy-vline,
  WA_REIT_OPTION_RATE_L-OPTRATE, sy-vline,
  WA_REIT_OPTION_RATE_L-OPTMETH, sy-vline,
  WA_REIT_OPTION_RATE_L-LASTUSED, sy-vline,
  WA_REIT_OPTION_RATE_L-JKONTKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIT_OPTION_RATE_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_REIT_OPTION_RATE_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_REIT_OPTION_RATE_L INTO WA_REIT_OPTION_RATE_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 REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REIT_OPTION_RATE_L-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIT_OPTION_RATE_L-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field MEAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIT_OPTION_RATE_L-MEAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIT_OPTION_RATE_L-MEAS.
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_REIT_OPTION_RATE_L_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
OBJNRDETAIL TYPE STRING,
ANCHPER TYPE STRING,
VERSION TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
OPTRATE TYPE STRING,
OPTMETH TYPE STRING,
LASTUSED TYPE STRING,
JKONTKZ TYPE STRING,
ISLEGACYDATA TYPE STRING,
XOPTMETH TYPE STRING,
ICON_DETAIL TYPE STRING,
OPTRATEFIX TYPE STRING,
MEAS TYPE STRING,
XMMEAS TYPE STRING,
ISFREE TYPE STRING,
ISAUTOMATIC TYPE STRING,
OPTRATECHAR TYPE STRING,
ICON_OPTRATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIT_OPTION_RATE_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_REIT_OPTION_RATE_L_STR-MANDT sy-vline 
WA_REIT_OPTION_RATE_L_STR-OBJNR sy-vline 
WA_REIT_OPTION_RATE_L_STR-OBJNRDETAIL sy-vline 
WA_REIT_OPTION_RATE_L_STR-ANCHPER sy-vline 
WA_REIT_OPTION_RATE_L_STR-VERSION sy-vline 
WA_REIT_OPTION_RATE_L_STR-VALIDFROM sy-vline 
WA_REIT_OPTION_RATE_L_STR-VALIDTO sy-vline 
WA_REIT_OPTION_RATE_L_STR-OPTRATE sy-vline 
WA_REIT_OPTION_RATE_L_STR-OPTMETH sy-vline 
WA_REIT_OPTION_RATE_L_STR-LASTUSED sy-vline 
WA_REIT_OPTION_RATE_L_STR-JKONTKZ sy-vline 
WA_REIT_OPTION_RATE_L_STR-ISLEGACYDATA sy-vline 
WA_REIT_OPTION_RATE_L_STR-XOPTMETH sy-vline 
WA_REIT_OPTION_RATE_L_STR-ICON_DETAIL sy-vline 
WA_REIT_OPTION_RATE_L_STR-OPTRATEFIX sy-vline 
WA_REIT_OPTION_RATE_L_STR-MEAS sy-vline 
WA_REIT_OPTION_RATE_L_STR-XMMEAS sy-vline 
WA_REIT_OPTION_RATE_L_STR-ISFREE sy-vline 
WA_REIT_OPTION_RATE_L_STR-ISAUTOMATIC sy-vline 
WA_REIT_OPTION_RATE_L_STR-OPTRATECHAR sy-vline 
WA_REIT_OPTION_RATE_L_STR-ICON_OPTRATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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