ABAP Select data from SAP table CPROCMTHUBITFDET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPROCMTHUBITFDET
*  INTO TABLE @DATA(IT_CPROCMTHUBITFDET2).
*--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_CPROCMTHUBITFDET INDEX 1 INTO DATA(WA_CPROCMTHUBITFDET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPROCMTHUBITFDET>-MANDT = 1.
<CPROCMTHUBITFDET>-PROCMTHUBPURCHASINGOBJECTID = 1.
<CPROCMTHUBITFDET>-PROCUREMENTHUBSOURCESYSTEM = 1.
<CPROCMTHUBITFDET>-PROCMTHUBPURGOBJECTCATEGORY = 1.
<CPROCMTHUBITFDET>-PROCMTHUBPURGOBJCATEGORYNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPROCMTHUBITFDET-PROCMTHUBMESSAGESTATUSDESC, sy-vline,
  WA_CPROCMTHUBITFDET-LASTCHANGEDATETIME, sy-vline,
  WA_CPROCMTHUBITFDET-AIFMESSAGEUUID, sy-vline,
  WA_CPROCMTHUBITFDET-AIFMESSAGENAMESPACE, sy-vline,
  WA_CPROCMTHUBITFDET-AIFMESSAGEINTERFACENAME, sy-vline,
  WA_CPROCMTHUBITFDET-AIFMESSAGEINTERFACEVERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPROCMTHUBITFDET 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_CPROCMTHUBITFDET 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_CPROCMTHUBITFDET INTO WA_CPROCMTHUBITFDET.


*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 PROCMTHUBPURCHASINGOBJECTID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPROCMTHUBITFDET-PROCMTHUBPURCHASINGOBJECTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPROCMTHUBITFDET-PROCMTHUBPURCHASINGOBJECTID.
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_CPROCMTHUBITFDET_STR, 
MANDT TYPE STRING,
PROCMTHUBPURCHASINGOBJECTID TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
PROCMTHUBPURGOBJECTCATEGORY TYPE STRING,
PROCMTHUBPURGOBJCATEGORYNAME TYPE STRING,
PROCMTHUBMESSAGESTATUSDESC TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
AIFMESSAGEUUID TYPE STRING,
AIFMESSAGENAMESPACE TYPE STRING,
AIFMESSAGEINTERFACENAME TYPE STRING,
AIFMESSAGEINTERFACEVERSION TYPE STRING,
PROCMTHUBMESSAGESTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPROCMTHUBITFDET_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_CPROCMTHUBITFDET_STR-MANDT sy-vline 
WA_CPROCMTHUBITFDET_STR-PROCMTHUBPURCHASINGOBJECTID sy-vline 
WA_CPROCMTHUBITFDET_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_CPROCMTHUBITFDET_STR-PROCMTHUBPURGOBJECTCATEGORY sy-vline 
WA_CPROCMTHUBITFDET_STR-PROCMTHUBPURGOBJCATEGORYNAME sy-vline 
WA_CPROCMTHUBITFDET_STR-PROCMTHUBMESSAGESTATUSDESC sy-vline 
WA_CPROCMTHUBITFDET_STR-LASTCHANGEDATETIME sy-vline 
WA_CPROCMTHUBITFDET_STR-AIFMESSAGEUUID sy-vline 
WA_CPROCMTHUBITFDET_STR-AIFMESSAGENAMESPACE sy-vline 
WA_CPROCMTHUBITFDET_STR-AIFMESSAGEINTERFACENAME sy-vline 
WA_CPROCMTHUBITFDET_STR-AIFMESSAGEINTERFACEVERSION sy-vline 
WA_CPROCMTHUBITFDET_STR-PROCMTHUBMESSAGESTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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