ABAP Select data from SAP table MSUPDAMD 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 MSUPDAMD 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 MSUPDAMD. 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 MSUPDAMD 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_MSUPDAMD TYPE STANDARD TABLE OF MSUPDAMD,
      WA_MSUPDAMD TYPE MSUPDAMD,
      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: <MSUPDAMD> TYPE MSUPDAMD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSUPDAMD
*  INTO TABLE @DATA(IT_MSUPDAMD2).
*--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_MSUPDAMD INDEX 1 INTO DATA(WA_MSUPDAMD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSUPDAMD>-ZEILE = 1.
<MSUPDAMD>-BLKNR = 1.
<MSUPDAMD>-FBLKN = 1.
<MSUPDAMD>-SORTN = 1.
<MSUPDAMD>-MEINS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSUPDAMD-TEXTT, sy-vline,
  WA_MSUPDAMD-LOEKZ, sy-vline,
  WA_MSUPDAMD-TXTPT, sy-vline,
  WA_MSUPDAMD-KTEXT1, sy-vline,
  WA_MSUPDAMD-KTEXT2, sy-vline,
  WA_MSUPDAMD-KZ_R_KT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSUPDAMD 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_MSUPDAMD 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_MSUPDAMD INTO WA_MSUPDAMD.


*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 MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MSUPDAMD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSUPDAMD-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OLD_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MSUPDAMD-OLD_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSUPDAMD-OLD_MEINS.
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_MSUPDAMD_STR, 
ZEILE TYPE STRING,
BLKNR TYPE STRING,
FBLKN TYPE STRING,
SORTN TYPE STRING,
MEINS TYPE STRING,
TEXTT TYPE STRING,
LOEKZ TYPE STRING,
TXTPT TYPE STRING,
KTEXT1 TYPE STRING,
KTEXT2 TYPE STRING,
KZ_R_KT TYPE STRING,
LTKZ TYPE STRING,
KZ_R_LT TYPE STRING,
UPDATE TYPE STRING,
MARK_KZ TYPE STRING,
OLD_MEINS TYPE STRING,
OLD_TEXTT TYPE STRING,
OLD_KTEXT1 TYPE STRING,
OLD_KTEXT2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSUPDAMD_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_MSUPDAMD_STR-ZEILE sy-vline 
WA_MSUPDAMD_STR-BLKNR sy-vline 
WA_MSUPDAMD_STR-FBLKN sy-vline 
WA_MSUPDAMD_STR-SORTN sy-vline 
WA_MSUPDAMD_STR-MEINS sy-vline 
WA_MSUPDAMD_STR-TEXTT sy-vline 
WA_MSUPDAMD_STR-LOEKZ sy-vline 
WA_MSUPDAMD_STR-TXTPT sy-vline 
WA_MSUPDAMD_STR-KTEXT1 sy-vline 
WA_MSUPDAMD_STR-KTEXT2 sy-vline 
WA_MSUPDAMD_STR-KZ_R_KT sy-vline 
WA_MSUPDAMD_STR-LTKZ sy-vline 
WA_MSUPDAMD_STR-KZ_R_LT sy-vline 
WA_MSUPDAMD_STR-UPDATE sy-vline 
WA_MSUPDAMD_STR-MARK_KZ sy-vline 
WA_MSUPDAMD_STR-OLD_MEINS sy-vline 
WA_MSUPDAMD_STR-OLD_TEXTT sy-vline 
WA_MSUPDAMD_STR-OLD_KTEXT1 sy-vline 
WA_MSUPDAMD_STR-OLD_KTEXT2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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