ABAP Select data from SAP table REBW_CONDITIONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBW_CONDITIONS
*  INTO TABLE @DATA(IT_REBW_CONDITIONS2).
*--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_REBW_CONDITIONS INDEX 1 INTO DATA(WA_REBW_CONDITIONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBW_CONDITIONS>-REOBJ = 1.
<REBW_CONDITIONS>-SMENR = 1.
<REBW_CONDITIONS>-SMIVE = 1.
<REBW_CONDITIONS>-DGUEL_KK = 1.
<REBW_CONDITIONS>-DGUEL_KP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBW_CONDITIONS-SKOART, sy-vline,
  WA_REBW_CONDITIONS-BKOND, sy-vline,
  WA_REBW_CONDITIONS-SWHRKOND, sy-vline,
  WA_REBW_CONDITIONS-BKONDQM, sy-vline,
  WA_REBW_CONDITIONS-MWSKZ, sy-vline,
  WA_REBW_CONDITIONS-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBW_CONDITIONS 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_REBW_CONDITIONS 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_REBW_CONDITIONS INTO WA_REBW_CONDITIONS.


*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 SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_REBW_CONDITIONS-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBW_CONDITIONS-SMENR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_REBW_CONDITIONS-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBW_CONDITIONS-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_REBW_CONDITIONS-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBW_CONDITIONS-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_REBW_CONDITIONS-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBW_CONDITIONS-SGENR.
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_REBW_CONDITIONS_STR, 
REOBJ TYPE STRING,
SMENR TYPE STRING,
SMIVE TYPE STRING,
DGUEL_KK TYPE STRING,
DGUEL_KP TYPE STRING,
SKOART TYPE STRING,
BKOND TYPE STRING,
SWHRKOND TYPE STRING,
BKONDQM TYPE STRING,
MWSKZ TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
DATEFROM TYPE STRING,
DATETO TYPE STRING,
AMMRHY TYPE STRING,
ATTRHY TYPE STRING,
JBMONAT TYPE STRING,
BKONDMO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBW_CONDITIONS_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_REBW_CONDITIONS_STR-REOBJ sy-vline 
WA_REBW_CONDITIONS_STR-SMENR sy-vline 
WA_REBW_CONDITIONS_STR-SMIVE sy-vline 
WA_REBW_CONDITIONS_STR-DGUEL_KK sy-vline 
WA_REBW_CONDITIONS_STR-DGUEL_KP sy-vline 
WA_REBW_CONDITIONS_STR-SKOART sy-vline 
WA_REBW_CONDITIONS_STR-BKOND sy-vline 
WA_REBW_CONDITIONS_STR-SWHRKOND sy-vline 
WA_REBW_CONDITIONS_STR-BKONDQM sy-vline 
WA_REBW_CONDITIONS_STR-MWSKZ sy-vline 
WA_REBW_CONDITIONS_STR-BUKRS sy-vline 
WA_REBW_CONDITIONS_STR-SWENR sy-vline 
WA_REBW_CONDITIONS_STR-SGRNR sy-vline 
WA_REBW_CONDITIONS_STR-SGENR sy-vline 
WA_REBW_CONDITIONS_STR-DATEFROM sy-vline 
WA_REBW_CONDITIONS_STR-DATETO sy-vline 
WA_REBW_CONDITIONS_STR-AMMRHY sy-vline 
WA_REBW_CONDITIONS_STR-ATTRHY sy-vline 
WA_REBW_CONDITIONS_STR-JBMONAT sy-vline 
WA_REBW_CONDITIONS_STR-BKONDMO sy-vline      INTO ld_text SEPARATED BY SPACE.

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