ABAP Select data from SAP table CMPESFOHOLD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMPESFOHOLD
*  INTO TABLE @DATA(IT_CMPESFOHOLD2).
*--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_CMPESFOHOLD INDEX 1 INTO DATA(WA_CMPESFOHOLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMPESFOHOLD>-MANDT = 1.
<CMPESFOHOLD>-PRODUCTIONHOLD = 1.
<CMPESFOHOLD>-MANUFACTURINGORDER = 1.
<CMPESFOHOLD>-MANUFACTURINGORDERTYPE = 1.
<CMPESFOHOLD>-MANUFACTURINGORDERCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMPESFOHOLD-MATERIAL, sy-vline,
  WA_CMPESFOHOLD-PRODUCTIONPLANT, sy-vline,
  WA_CMPESFOHOLD-PRODUCTIONHOLDOBJECTTYPE, sy-vline,
  WA_CMPESFOHOLD-PRODUCTIONHOLDOBJECTTYPENAME, sy-vline,
  WA_CMPESFOHOLD-PRODNHOLDAPPLYRSNCODEGRPCTLG, sy-vline,
  WA_CMPESFOHOLD-PRODNHOLDAPPLYRSNCODEGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMPESFOHOLD 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_CMPESFOHOLD 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_CMPESFOHOLD INTO WA_CMPESFOHOLD.


*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 MANUFACTURINGORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMPESFOHOLD-MANUFACTURINGORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPESFOHOLD-MANUFACTURINGORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMPESFOHOLD-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPESFOHOLD-MATERIAL.
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_CMPESFOHOLD_STR, 
MANDT TYPE STRING,
PRODUCTIONHOLD TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
MANUFACTURINGORDERTYPE TYPE STRING,
MANUFACTURINGORDERCATEGORY TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
PRODUCTIONHOLDOBJECTTYPE TYPE STRING,
PRODUCTIONHOLDOBJECTTYPENAME TYPE STRING,
PRODNHOLDAPPLYRSNCODEGRPCTLG TYPE STRING,
PRODNHOLDAPPLYRSNCODEGROUP TYPE STRING,
PRODUCTIONHOLDAPPLYREASONCODE TYPE STRING,
PRODNHOLDAPPLYREASONCODENAME TYPE STRING,
PRODUCTIONHOLDSTARTDATETIME TYPE STRING,
PRODUCTIONHOLDAPPLIEDBYUSER TYPE STRING,
PRODUCTIONHOLDRELEASEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMPESFOHOLD_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_CMPESFOHOLD_STR-MANDT sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLD sy-vline 
WA_CMPESFOHOLD_STR-MANUFACTURINGORDER sy-vline 
WA_CMPESFOHOLD_STR-MANUFACTURINGORDERTYPE sy-vline 
WA_CMPESFOHOLD_STR-MANUFACTURINGORDERCATEGORY sy-vline 
WA_CMPESFOHOLD_STR-MATERIAL sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONPLANT sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLDOBJECTTYPE sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLDOBJECTTYPENAME sy-vline 
WA_CMPESFOHOLD_STR-PRODNHOLDAPPLYRSNCODEGRPCTLG sy-vline 
WA_CMPESFOHOLD_STR-PRODNHOLDAPPLYRSNCODEGROUP sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLDAPPLYREASONCODE sy-vline 
WA_CMPESFOHOLD_STR-PRODNHOLDAPPLYREASONCODENAME sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLDSTARTDATETIME sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLDAPPLIEDBYUSER sy-vline 
WA_CMPESFOHOLD_STR-PRODUCTIONHOLDRELEASEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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