ABAP Select data from SAP table REBDC_MEAS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBDC_MEAS
*  INTO TABLE @DATA(IT_REBDC_MEAS2).
*--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_REBDC_MEAS INDEX 1 INTO DATA(WA_REBDC_MEAS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBDC_MEAS>-MANDT = 1.
<REBDC_MEAS>-MEAS = 1.
<REBDC_MEAS>-ISSUMMEAS = 1.
<REBDC_MEAS>-BASERATE = 1.
<REBDC_MEAS>-SETZEROIFVACANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBDC_MEAS-ISPERCENT, sy-vline,
  WA_REBDC_MEAS-ISPROPAPPORT, sy-vline,
  WA_REBDC_MEAS-GETBYCONDTYPE, sy-vline,
  WA_REBDC_MEAS-ISCONSUMPTION, sy-vline,
  WA_REBDC_MEAS-ISRESETABLE, sy-vline,
  WA_REBDC_MEAS-MEASUNITDEF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBDC_MEAS 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_REBDC_MEAS 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_REBDC_MEAS INTO WA_REBDC_MEAS.


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

*Conversion exit CUNIT, internal->external for field MEASUNITDEF
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REBDC_MEAS-MEASUNITDEF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBDC_MEAS-MEASUNITDEF.
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_REBDC_MEAS_STR, 
MANDT TYPE STRING,
MEAS TYPE STRING,
ISSUMMEAS TYPE STRING,
BASERATE TYPE STRING,
SETZEROIFVACANT TYPE STRING,
ISPERCENT TYPE STRING,
ISPROPAPPORT TYPE STRING,
GETBYCONDTYPE TYPE STRING,
ISCONSUMPTION TYPE STRING,
ISRESETABLE TYPE STRING,
MEASUNITDEF TYPE STRING,
USAGEFORAO TYPE STRING,
USAGEFORRO TYPE STRING,
USAGEFORBE TYPE STRING,
USAGEFORPR TYPE STRING,
USAGEFORBU TYPE STRING,
USAGEFORCN TYPE STRING,
USAGEFORPL TYPE STRING,
USAGEFORIO TYPE STRING,
ISSPCFACTOR TYPE STRING,
USEDFORAPPORT TYPE STRING,
DISABLEEXCEPTRO TYPE STRING,
DISABLEEXCEPTAO TYPE STRING,
DISABLEEXCEPTCN TYPE STRING,
OBJRELPROP TYPE STRING,
ISCOSHARE TYPE STRING,
SCKEYDATEREL TYPE STRING,
NOCOMPRESSION TYPE STRING,
CUEXCLUDEASSIGN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBDC_MEAS_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_REBDC_MEAS_STR-MANDT sy-vline 
WA_REBDC_MEAS_STR-MEAS sy-vline 
WA_REBDC_MEAS_STR-ISSUMMEAS sy-vline 
WA_REBDC_MEAS_STR-BASERATE sy-vline 
WA_REBDC_MEAS_STR-SETZEROIFVACANT sy-vline 
WA_REBDC_MEAS_STR-ISPERCENT sy-vline 
WA_REBDC_MEAS_STR-ISPROPAPPORT sy-vline 
WA_REBDC_MEAS_STR-GETBYCONDTYPE sy-vline 
WA_REBDC_MEAS_STR-ISCONSUMPTION sy-vline 
WA_REBDC_MEAS_STR-ISRESETABLE sy-vline 
WA_REBDC_MEAS_STR-MEASUNITDEF sy-vline 
WA_REBDC_MEAS_STR-USAGEFORAO sy-vline 
WA_REBDC_MEAS_STR-USAGEFORRO sy-vline 
WA_REBDC_MEAS_STR-USAGEFORBE sy-vline 
WA_REBDC_MEAS_STR-USAGEFORPR sy-vline 
WA_REBDC_MEAS_STR-USAGEFORBU sy-vline 
WA_REBDC_MEAS_STR-USAGEFORCN sy-vline 
WA_REBDC_MEAS_STR-USAGEFORPL sy-vline 
WA_REBDC_MEAS_STR-USAGEFORIO sy-vline 
WA_REBDC_MEAS_STR-ISSPCFACTOR sy-vline 
WA_REBDC_MEAS_STR-USEDFORAPPORT sy-vline 
WA_REBDC_MEAS_STR-DISABLEEXCEPTRO sy-vline 
WA_REBDC_MEAS_STR-DISABLEEXCEPTAO sy-vline 
WA_REBDC_MEAS_STR-DISABLEEXCEPTCN sy-vline 
WA_REBDC_MEAS_STR-OBJRELPROP sy-vline 
WA_REBDC_MEAS_STR-ISCOSHARE sy-vline 
WA_REBDC_MEAS_STR-SCKEYDATEREL sy-vline 
WA_REBDC_MEAS_STR-NOCOMPRESSION sy-vline 
WA_REBDC_MEAS_STR-CUEXCLUDEASSIGN sy-vline      INTO ld_text SEPARATED BY SPACE.

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