ABAP Select data from SAP table /MDG/_SF_IS_PP_CELEM 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 /MDG/_SF_IS_PP_CELEM 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 /MDG/_SF_IS_PP_CELEM. 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 /MDG/_SF_IS_PP_CELEM 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_/MDG/_SF_IS_PP_CELEM TYPE STANDARD TABLE OF /MDG/_SF_IS_PP_CELEM,
      WA_/MDG/_SF_IS_PP_CELEM TYPE /MDG/_SF_IS_PP_CELEM,
      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: </MDG/_SF_IS_PP_CELEM> TYPE /MDG/_SF_IS_PP_CELEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDG/_SF_IS_PP_CELEM
*  INTO TABLE @DATA(IT_/MDG/_SF_IS_PP_CELEM2).
*--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_/MDG/_SF_IS_PP_CELEM INDEX 1 INTO DATA(WA_/MDG/_SF_IS_PP_CELEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDG/_SF_IS_PP_CELEM>-SYSTEM = 1.
</MDG/_SF_IS_PP_CELEM>-COAREA = 1.
</MDG/_SF_IS_PP_CELEM>-CELEM = 1.
</MDG/_SF_IS_PP_CELEM>-ACELECAT = 1.
</MDG/_SF_IS_PP_CELEM>-ACELEORD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDG/_SF_IS_PP_CELEM-CCTRCELEM, sy-vline,
  WA_/MDG/_SF_IS_PP_CELEM-CELEMINDQ, sy-vline,
  WA_/MDG/_SF_IS_PP_CELEM-CELEMLTEX, sy-vline,
  WA_/MDG/_SF_IS_PP_CELEM-CELEMNAME, sy-vline,
  WA_/MDG/_SF_IS_PP_CELEM-FDATECELE, sy-vline,
  WA_/MDG/_SF_IS_PP_CELEM-FUNCCELEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDG/_SF_IS_PP_CELEM 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_/MDG/_SF_IS_PP_CELEM 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_/MDG/_SF_IS_PP_CELEM INTO WA_/MDG/_SF_IS_PP_CELEM.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/MDG/_SF_IS_PP_CELEM_STR, 
SYSTEM TYPE STRING,
COAREA TYPE STRING,
CELEM TYPE STRING,
ACELECAT TYPE STRING,
ACELEORD TYPE STRING,
CCTRCELEM TYPE STRING,
CELEMINDQ TYPE STRING,
CELEMLTEX TYPE STRING,
CELEMNAME TYPE STRING,
FDATECELE TYPE STRING,
FUNCCELEM TYPE STRING,
TDATECELE TYPE STRING,
TXTMI TYPE STRING,
TXTSH TYPE STRING,
UOMCELEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDG/_SF_IS_PP_CELEM_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_/MDG/_SF_IS_PP_CELEM_STR-SYSTEM sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-COAREA sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-CELEM sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-ACELECAT sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-ACELEORD sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-CCTRCELEM sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-CELEMINDQ sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-CELEMLTEX sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-CELEMNAME sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-FDATECELE sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-FUNCCELEM sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-TDATECELE sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-TXTMI sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-TXTSH sy-vline 
WA_/MDG/_SF_IS_PP_CELEM_STR-UOMCELEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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