ABAP Select data from SAP table REIS_ARCH_MEAS_TRAN into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_ARCH_MEAS_TRAN
*  INTO TABLE @DATA(IT_REIS_ARCH_MEAS_TRAN2).
*--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_REIS_ARCH_MEAS_TRAN INDEX 1 INTO DATA(WA_REIS_ARCH_MEAS_TRAN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_ARCH_MEAS_TRAN>-AOID = 1.
<REIS_ARCH_MEAS_TRAN>-OBJNR = 1.
<REIS_ARCH_MEAS_TRAN>-OBJTYPE = 1.
<REIS_ARCH_MEAS_TRAN>-MEAS = 1.
<REIS_ARCH_MEAS_TRAN>-VALIDFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_ARCH_MEAS_TRAN-VALIDTO, sy-vline,
  WA_REIS_ARCH_MEAS_TRAN-MEASVALUE, sy-vline,
  WA_REIS_ARCH_MEAS_TRAN-MEASVALUECMPL, sy-vline,
  WA_REIS_ARCH_MEAS_TRAN-MEASUNIT, sy-vline,
  WA_REIS_ARCH_MEAS_TRAN-ISMANUALLYSET, sy-vline,
  WA_REIS_ARCH_MEAS_TRAN-ISHIERARCHICAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_ARCH_MEAS_TRAN 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_REIS_ARCH_MEAS_TRAN 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_REIS_ARCH_MEAS_TRAN INTO WA_REIS_ARCH_MEAS_TRAN.


*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_REIS_ARCH_MEAS_TRAN-MEAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_ARCH_MEAS_TRAN-MEAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEASUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_ARCH_MEAS_TRAN-MEASUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_ARCH_MEAS_TRAN-MEASUNIT.
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_REIS_ARCH_MEAS_TRAN_STR, 
AOID TYPE STRING,
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
MEAS TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
MEASVALUE TYPE STRING,
MEASVALUECMPL TYPE STRING,
MEASUNIT TYPE STRING,
ISMANUALLYSET TYPE STRING,
ISHIERARCHICAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_ARCH_MEAS_TRAN_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_REIS_ARCH_MEAS_TRAN_STR-AOID sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-OBJNR sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-OBJTYPE sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-MEAS sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-VALIDFROM sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-VALIDTO sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-MEASVALUE sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-MEASVALUECMPL sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-MEASUNIT sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-ISMANUALLYSET sy-vline 
WA_REIS_ARCH_MEAS_TRAN_STR-ISHIERARCHICAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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