ABAP Select data from SAP table REOR_MEAS_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REOR_MEAS_S
*  INTO TABLE @DATA(IT_REOR_MEAS_S2).
*--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_REOR_MEAS_S INDEX 1 INTO DATA(WA_REOR_MEAS_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REOR_MEAS_S>-MSVALUEFROM01 = 1.
<REOR_MEAS_S>-MSVALUETO01 = 1.
<REOR_MEAS_S>-MSVALUETOLFROM01 = 1.
<REOR_MEAS_S>-MSVALUETOLTO01 = 1.
<REOR_MEAS_S>-MSUNIT01 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REOR_MEAS_S-XMMEAS01, sy-vline,
  WA_REOR_MEAS_S-XSMEAS01, sy-vline,
  WA_REOR_MEAS_S-ISSUMMEAS01, sy-vline,
  WA_REOR_MEAS_S-MSEH601, sy-vline,
  WA_REOR_MEAS_S-MSVALUEFROM02, sy-vline,
  WA_REOR_MEAS_S-MSVALUETO02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REOR_MEAS_S 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_REOR_MEAS_S 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_REOR_MEAS_S INTO WA_REOR_MEAS_S.


*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 CUNIT, internal->external for field MSUNIT01
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REOR_MEAS_S-MSUNIT01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REOR_MEAS_S-MSUNIT01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSUNIT02
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REOR_MEAS_S-MSUNIT02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REOR_MEAS_S-MSUNIT02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSUNIT03
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REOR_MEAS_S-MSUNIT03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REOR_MEAS_S-MSUNIT03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSUNIT04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REOR_MEAS_S-MSUNIT04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REOR_MEAS_S-MSUNIT04.
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_REOR_MEAS_S_STR, 
MSVALUEFROM01 TYPE STRING,
MSVALUETO01 TYPE STRING,
MSVALUETOLFROM01 TYPE STRING,
MSVALUETOLTO01 TYPE STRING,
MSUNIT01 TYPE STRING,
XMMEAS01 TYPE STRING,
XSMEAS01 TYPE STRING,
ISSUMMEAS01 TYPE STRING,
MSEH601 TYPE STRING,
MSVALUEFROM02 TYPE STRING,
MSVALUETO02 TYPE STRING,
MSVALUETOLFROM02 TYPE STRING,
MSVALUETOLTO02 TYPE STRING,
MSUNIT02 TYPE STRING,
XMMEAS02 TYPE STRING,
XSMEAS02 TYPE STRING,
ISSUMMEAS02 TYPE STRING,
MSEH602 TYPE STRING,
MSVALUEFROM03 TYPE STRING,
MSVALUETO03 TYPE STRING,
MSVALUETOLFROM03 TYPE STRING,
MSVALUETOLTO03 TYPE STRING,
MSUNIT03 TYPE STRING,
XMMEAS03 TYPE STRING,
XSMEAS03 TYPE STRING,
ISSUMMEAS03 TYPE STRING,
MSEH603 TYPE STRING,
MSVALUEFROM04 TYPE STRING,
MSVALUETO04 TYPE STRING,
MSVALUETOLFROM04 TYPE STRING,
MSVALUETOLTO04 TYPE STRING,
MSUNIT04 TYPE STRING,
XMMEAS04 TYPE STRING,
XSMEAS04 TYPE STRING,
ISSUMMEAS04 TYPE STRING,
MSEH604 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REOR_MEAS_S_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_REOR_MEAS_S_STR-MSVALUEFROM01 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETO01 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLFROM01 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLTO01 sy-vline 
WA_REOR_MEAS_S_STR-MSUNIT01 sy-vline 
WA_REOR_MEAS_S_STR-XMMEAS01 sy-vline 
WA_REOR_MEAS_S_STR-XSMEAS01 sy-vline 
WA_REOR_MEAS_S_STR-ISSUMMEAS01 sy-vline 
WA_REOR_MEAS_S_STR-MSEH601 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUEFROM02 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETO02 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLFROM02 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLTO02 sy-vline 
WA_REOR_MEAS_S_STR-MSUNIT02 sy-vline 
WA_REOR_MEAS_S_STR-XMMEAS02 sy-vline 
WA_REOR_MEAS_S_STR-XSMEAS02 sy-vline 
WA_REOR_MEAS_S_STR-ISSUMMEAS02 sy-vline 
WA_REOR_MEAS_S_STR-MSEH602 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUEFROM03 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETO03 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLFROM03 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLTO03 sy-vline 
WA_REOR_MEAS_S_STR-MSUNIT03 sy-vline 
WA_REOR_MEAS_S_STR-XMMEAS03 sy-vline 
WA_REOR_MEAS_S_STR-XSMEAS03 sy-vline 
WA_REOR_MEAS_S_STR-ISSUMMEAS03 sy-vline 
WA_REOR_MEAS_S_STR-MSEH603 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUEFROM04 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETO04 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLFROM04 sy-vline 
WA_REOR_MEAS_S_STR-MSVALUETOLTO04 sy-vline 
WA_REOR_MEAS_S_STR-MSUNIT04 sy-vline 
WA_REOR_MEAS_S_STR-XMMEAS04 sy-vline 
WA_REOR_MEAS_S_STR-XSMEAS04 sy-vline 
WA_REOR_MEAS_S_STR-ISSUMMEAS04 sy-vline 
WA_REOR_MEAS_S_STR-MSEH604 sy-vline      INTO ld_text SEPARATED BY SPACE.

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