ABAP Select data from SAP table /DSD/ME_CPT_USER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /DSD/ME_CPT_USER 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 /DSD/ME_CPT_USER. 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 /DSD/ME_CPT_USER 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_/DSD/ME_CPT_USER TYPE STANDARD TABLE OF /DSD/ME_CPT_USER,
      WA_/DSD/ME_CPT_USER TYPE /DSD/ME_CPT_USER,
      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: </DSD/ME_CPT_USER> TYPE /DSD/ME_CPT_USER.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /DSD/ME_CPT_USER
  INTO TABLE IT_/DSD/ME_CPT_USER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /DSD/ME_CPT_USER
*  INTO TABLE @DATA(IT_/DSD/ME_CPT_USER2).
*--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_/DSD/ME_CPT_USER INDEX 1 INTO DATA(WA_/DSD/ME_CPT_USER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/DSD/ME_CPT_USER ASSIGNING </DSD/ME_CPT_USER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</DSD/ME_CPT_USER>-MANDT = 1.
</DSD/ME_CPT_USER>-FARNR = 1.
</DSD/ME_CPT_USER>-FIRSTNAME = 1.
</DSD/ME_CPT_USER>-LASTNAME = 1.
</DSD/ME_CPT_USER>-TPLST = 1.

ENDLOOP.

LOOP AT IT_/DSD/ME_CPT_USER INTO WA_/DSD/ME_CPT_USER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/DSD/ME_CPT_USER-VSTEL, sy-vline,
  WA_/DSD/ME_CPT_USER-TDISPZ, sy-vline,
  WA_/DSD/ME_CPT_USER-FSKL, sy-vline,
  WA_/DSD/ME_CPT_USER-STPLS, sy-vline,
  WA_/DSD/ME_CPT_USER-PROVA, sy-vline,
  WA_/DSD/ME_CPT_USER-SPERZ1V, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/DSD/ME_CPT_USER 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_/DSD/ME_CPT_USER 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_/DSD/ME_CPT_USER INTO WA_/DSD/ME_CPT_USER.


*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 FARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/ME_CPT_USER-FARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/ME_CPT_USER-FARNR.
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_/DSD/ME_CPT_USER_STR, 
MANDT TYPE STRING,
FARNR TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
TPLST TYPE STRING,
VSTEL TYPE STRING,
TDISPZ TYPE STRING,
FSKL TYPE STRING,
STPLS TYPE STRING,
PROVA TYPE STRING,
SPERZ1V TYPE STRING,
SPERZ1B TYPE STRING,
SPERZ2V TYPE STRING,
SPERZ2B TYPE STRING,
SPERZ3V TYPE STRING,
SPERZ3B TYPE STRING,
STATUS TYPE STRING,
AEDAT TYPE STRING,
AEZET TYPE STRING,
AENAM TYPE STRING,
SYNC_SAPBEV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/DSD/ME_CPT_USER_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_/DSD/ME_CPT_USER_STR-MANDT sy-vline 
WA_/DSD/ME_CPT_USER_STR-FARNR sy-vline 
WA_/DSD/ME_CPT_USER_STR-FIRSTNAME sy-vline 
WA_/DSD/ME_CPT_USER_STR-LASTNAME sy-vline 
WA_/DSD/ME_CPT_USER_STR-TPLST sy-vline 
WA_/DSD/ME_CPT_USER_STR-VSTEL sy-vline 
WA_/DSD/ME_CPT_USER_STR-TDISPZ sy-vline 
WA_/DSD/ME_CPT_USER_STR-FSKL sy-vline 
WA_/DSD/ME_CPT_USER_STR-STPLS sy-vline 
WA_/DSD/ME_CPT_USER_STR-PROVA sy-vline 
WA_/DSD/ME_CPT_USER_STR-SPERZ1V sy-vline 
WA_/DSD/ME_CPT_USER_STR-SPERZ1B sy-vline 
WA_/DSD/ME_CPT_USER_STR-SPERZ2V sy-vline 
WA_/DSD/ME_CPT_USER_STR-SPERZ2B sy-vline 
WA_/DSD/ME_CPT_USER_STR-SPERZ3V sy-vline 
WA_/DSD/ME_CPT_USER_STR-SPERZ3B sy-vline 
WA_/DSD/ME_CPT_USER_STR-STATUS sy-vline 
WA_/DSD/ME_CPT_USER_STR-AEDAT sy-vline 
WA_/DSD/ME_CPT_USER_STR-AEZET sy-vline 
WA_/DSD/ME_CPT_USER_STR-AENAM sy-vline 
WA_/DSD/ME_CPT_USER_STR-SYNC_SAPBEV sy-vline      INTO ld_text SEPARATED BY SPACE.

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